Filed Pursuant to Rule 424(b)(3)
Registration No. 333-132367

Prospectus Supplement No. 9 dated January 29, 2008
(to Prospectus dated June 23, 2006)

12,000,000 SHARES
CURRENCYSHARESSM MEXICAN PESO TRUST

        This Prospectus Supplement No. 9 amends and supplements our prospectus dated June 23, 2006 (the “Prospectus”) and should be read in conjunction with, and must be delivered with, the Prospectus.

        This Prospectus Supplement No. 9 includes the attached Annual Report on Form 10-K for the fiscal year ended October 31, 2007 filed by us with the Securities and Exchange Commission.

        The penultimate full paragraph on the front cover page of the Prospectus is hereby replaced with the following:

  On June 8, 2006, the Sponsor deposited 1,000 Mexican Pesos into the primary deposit account of the Trust in exchange for one Share and the Trustee recorded the Share as owned by the Sponsor. The Sponsor purchased the Share solely for the purpose of forming the Trust and the Sponsor redeemed the Share for 1,000 Mexican Pesos immediately after the SEC declared the registration statement effective. In order to provide liquidity for the Shares at the commencement of trading, the Initial Purchaser, LaBranche Structured Products, LLC, which had been appointed as the specialist in the Shares by the NYSE, deposited 150,000,000 Mexican Pesos in the primary deposit account of the Trust and the Trustee instructed DTC to record, and DTC recorded, three Baskets totaling 150,000 Shares (constituting 1,000 Mexican Pesos per Share) as owned by the Initial Purchaser. Effective as of February 20, 2007, Goldman Sachs Execution & Clearing, L.P. has been appointed as the specialist in the Shares by the NYSE.

        Under the heading “The Sponsor” on page 25 of the Prospectus, the first full paragraph is hereby replaced in its entirety with the following paragraph:

  The Sponsor of the Trust is Rydex Specialized Products LLC, a Delaware limited liability company. The sole member of Rydex Specialized Products LLC is PADCO Advisors II, Inc., a Maryland corporation solely owned by Rydex Holdings, Inc., a Maryland corporation. The Sponsor and its affiliates collectively do business as “Rydex Investments.” The principal offices of the Sponsor and the Trust are the offices of Rydex Investments at 9601 Blackwell Road, Suite 500, Rockville, Maryland 20850, and the Sponsor does not own or lease any other property.

        Under the heading “Creation and Redemption of Shares” of the Prospectus on page 31, the first full paragraph, third sentence is hereby replaced with the following sentence: “As of January 29, 2008, Goldman, Sachs & Co., Goldman Sachs Execution & Clearing, L.P., Merrill Lynch Professional Clearing Corp. and Timber Hill LLC have each signed a Participant Agreement with the Trustee and the Sponsor and may create and redeem Baskets.”

        All references in the Prospectus to “the New York Stock Exchange” and “NYSE” which relate to the trading of Mexican Peso Shares on or after October 30, 2007 are amended to read “NYSE Arca.”

        All other portions of the Prospectus shall remain unchanged. Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Prospectus.


The date of this Prospectus Supplement is January 29, 2008


Cautionary Statement Regarding Forward-Looking Information

This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and within the Private Securities Litigation Reform Act of 1995. These statements are predictions and actual events or results may differ materially from those expressed in our forward-looking statements. Risks and uncertainties may cause our actual results to differ materially from those expressed in our forward-looking statements.

The value of the Shares relates directly to the value of the Mexican Pesos held by the Trust and fluctuations in the price of the Mexican Pesos could materially adversely affect an investment in the Shares. Readers are urged to review the “Risk Factors” section beginning on page 3 for a description of other risks and uncertainties that may affect an investment in the Shares.

The discussion and analysis which follows may contain statement that relate to future events or future performance. In some cases, such forward-looking statements can be identified by terminology such as “anticipate,” “expect,” “intend,” “plan,” “believe,” “seek,” “outlook” and “estimate” as well as similar words and phrases that signify forward-looking statements. Neither the Sponsor nor any other person assumes responsibility for the accuracy or completeness of forward-looking statements. Further, these forward-looking statements are made as of the date of this report, and will not be revised or updated to reflect actual results or changes in the Sponsor’s expectations or predictions.









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CURRENCYSHARESSM MEXICAN PESO TRUST
INDEX

Caption Page
PART I    
Item 1. Business. 1
Item 1A. Risk Factors. 3
Item 1B. Unresolved Staff Comments. 8
Item 2. Properties. 8
Item 3. Legal Proceedings. 8
Item 4. Submission of Matters to a Vote of Security Holders. 8
Part II
Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities. 9
Item 6. Selected Financial Data. 9
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. 10
Item 7A. Quantitative and Qualitative Disclosures about Market Risk. 12
Item 8. Financial Statements and Supplementary Data. 12
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosures. 13
Item 9A. Controls and Procedures. 13
Item 9B. Other Information. 13
PART III
Item 10. Directors and Executive Officers of the Registrant. 14
Item 11. Executive Compensation. 14
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters. 14
Item 13. Certain Relationships and Related Transactions. 14
Item 14. Principal Accounting Fees and Services. 14
PART IV
Item 15. Exhibits, Financial Statement Schedules. 15

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Item 1. BUSINESS

OVERVIEW

The CurrencySharesSM Mexican Peso Trust (the “Trust”) is a grantor trust that was formed on June 8, 2006. The Trust issues shares (the “Shares”) in blocks of 50,000 (a “Basket”) in exchange for deposits of Mexican Pesos and distributes Mexican Pesos in connection with the redemption of Baskets. The Shares trade on NYSE Arca under the ticker symbol “FXM.”

The investment objective of the Trust is for the Shares to reflect the price of Mexican Peso plus accrued interest, less the expenses of the Trust’s operations. The Shares are intended to offer investors an opportunity to participate in the market for the Mexican Peso through an investment in securities. The Shares are intended to provide institutional and retail investors with a simple, cost-effective means of gaining investment benefits similar to those of holding the Mexican Peso. The Shares are bought and sold on NYSE Arca like any other exchange-listed security. The Shares are backed by the assets of the Trust, which does not hold or use derivative products. The value of the holdings of the Trust is reported on the Trust’s website, www.currencyshares.com, every business day.

THE TRUST

      General

The Trust holds Mexican Pesos and, from time to time, issues Baskets in exchange for deposits of Mexican Pesos and distributes Mexican Pesos in connection with redemptions of Baskets. The Mexican Pesos held by the Trust will be sold only (1) if needed to pay Trust expenses, (2) in the event the Trust terminates and liquidates its assets or (3) as otherwise required by law or regulation.

      The Sponsor

The Sponsor of the Trust generally oversees the performance of the Trustee and the Trust’s principal service providers, but does not exercise day-to-day oversight over the Trustee or the Trust’s service providers. The Sponsor is Rydex Specialized Products LLC, a Delaware limited liability company.

The Trust’s only ordinary recurring expense is expected to be the Sponsor’s fee. The Sponsor is responsible for payment of the following administrative and marketing expenses of the Trust: the Trustee’s monthly fee, typical maintenance and transaction fees of the Depository, NYSE listing fees, NYSE Arca listing fees, printing and mailing costs, audit fees and expenses, up to $100,000 per annum in legal fees and expenses, and applicable license fees. The Sponsor also paid the costs of the Trust’s organization and the costs of the initial sale of the Shares, including the applicable SEC registration fees. The Sponsor’s fee accrues daily at an annual nominal rate of 0.40% of the Mexican Peso in the Trust. The Sponsor was paid $62,843 for the period covered by this report.

      The Trustee

The Bank of New York, a banking corporation with trust powers organized under the laws of the State of New York, serves as the Trustee. The Trustee is responsible for the day-to-day administration of the Trust, including keeping the Trust’s operational records.

      Net Asset Value

The Trustee calculates, and the Sponsor publishes, the Trust’s Net Asset Value (“NAV”) each business day. To calculate the NAV, the Trustee adds to the amount of Mexican Pesos in the Trust at the end of the preceding day accrued but unpaid interest, Mexican Pesos receivable under pending purchase orders and the value of other Trust assets, and subtracts the accrued but unpaid Sponsor’s fee, Mexican Pesos payable under pending redemption orders and other Trust expenses and liabilities, if any. The NAV is expressed in U.S. Dollars (“USD”) based on the “Noon Buying Rate,” which is the USD/Mexican Peso exchange rate as determined by the Federal Reserve Bank of New York as of 12:00 PM. (New York time) on each day that NYSE Arca is open for regular trading. If, on a particular evaluation day, the Noon Buying Rate has not been determined and announced by 2:00 PM (New York time), then the most recent Noon Buying Rate is used to determine the NAV of the Trust unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate to use as the basis for such valuation.

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The Trustee also determines the NAV per Share, which equals the NAV of the Trust divided by the number of outstanding Shares. The NAV of the Trust and NAV per Share is published by the Sponsor on each day that NYSE Arca is open for regular trading and is posted on the Trust’s website, www.currencyshares.com.

      Depository and Deposit Accounts

JPMorgan Chase Bank, N.A., London Branch is the Depository. The Depository maintains two deposit accounts for the Trust, a primary deposit account which earns interest and a secondary deposit account which does not earn interest (collectively, the “Deposit Accounts”). Interest on the primary deposit account accrues daily and is paid monthly. If the Sponsor believes that the interest rate paid by the Depository is not competitive, the Sponsor’s recourse is to remove the Depository by terminating the Deposit Account Agreement and closing the accounts. The Depository is not paid a fee for its services to the Trust. The Depository may earn a “spread” or “margin” over the rate of interest it pays to the Trust on the Mexican Peso deposit balances. The secondary deposit account is used only in connection with mid-month creations and redemptions of Baskets, to account for interest that has been earned on the primary deposit account during the month but not yet paid, and to receive interest earned on the primary deposit account, pay Trust expenses and distribute any excess interest to Shareholders on a monthly basis.

The secondary deposit account is used to account for interest received and paid out on creations and redemptions of Baskets. The secondary deposit account is also used to account for interest earned on the primary deposit account, pay Trust expenses and distribute any excess interest to Shareholders on a monthly basis. In the event that the interest deposited exceeds the sum of the Sponsor’s fee for the prior month plus other Trust expenses, if any, then the Trustee will direct that the excess be converted into USD at a prevailing market rate and the Trustee will distribute the USD as promptly as practicable to Shareholders on a pro rata basis (in accordance with the number of Shares that they own).

      Trust Expenses

In certain exceptional cases the Trust may pay expenses in addition to the Sponsor’s fee. These exceptions include expenses not assumed by the Sponsor, taxes and governmental charges, expenses and costs of any extraordinary services performed by the Trustee or the Sponsor on behalf of the Trust or action taken by the Trustee or the Sponsor to protect the Trust or the interests of Shareholders, indemnification of the Sponsor under the Depositary Trust Agreement, and legal expenses in excess of $100,000 per year.

      Termination

The Trust will terminate upon the occurrence of any of the termination events listed in the Depositary Trust Agreement and will otherwise terminate on June 8, 2046.

THE SHARES

      General

Each Share represents a proportional interest, based on the total number of Shares outstanding, in the Mexican Pesos owned by the Trust, plus accrued and unpaid interest less accrued but unpaid expenses (both asset-based and non-asset based) of the Trust. All Shares are of the same class with equal rights and privileges. Each Share is transferable, fully paid and non-assessable.

      Limited Rights

The Shares are not a traditional investment. They are dissimilar from the “shares” of a corporation operating a business enterprise, with management and a board of directors. Trust Shareholders do not have rights normally associated with owning shares of a business corporation, including, for example, the right to bring “oppression” or “derivative” actions. Shareholders’ have only those rights explicitly set forth in the Depositary Trust Agreement. The Shares do not entitle their holders to any conversion or pre-emptive rights or, except as provided herein, any redemption or distribution rights.

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      Voting and Approvals

Shareholders have no voting rights under the Depositary Trust Agreement, except in limited circumstances. If the holders of at least 25% of the Shares outstanding determine that the Trustee is in material breach of its obligations under the Depositary Trust Agreement, they may provide written notice to the Trustee (or require the Sponsor to do so) specifying the default and requiring the Trustee to cure such default. If the Trustee fails to cure such breach within 30 days after receipt of the notice, the Sponsor may remove the Trustee. The holders of at least 66 2/3% of the Shares outstanding may vote to remove the Trustee. The Trustee must terminate the Trust at the request of the holders of at least 75% of the outstanding Shares.

      Creation and Redemption of Shares

The creation and redemption of Baskets requires the delivery to the Trust or the distribution by the Trust of the amount of Mexican Pesos represented by the Baskets being created or redeemed. This amount is based on the combined NAV per Share of the number of Shares included in the Baskets being created or redeemed, determined on the day the order to create or redeem Baskets is accepted by the Trustee.

Only Authorized Participants may place orders to create and redeem Baskets. An Authorized Participant is a Depository Trust Company participant that is a registered broker-dealer or other securities market participant, such as a bank or other financial institution that is not required to register as a broker-dealer to engage in securities transactions and has entered into a Participant Agreement with the Trustee.

Before initiating a creation or redemption order, an Authorized Participant must have entered into a Participant Agreement with the Sponsor and the Trustee. The Participant Agreement provides the procedures for the creation and redemption of Baskets and for the delivery of Mexican Pesos required for creations and redemptions. The Participant Agreements may be amended by the Trustee and the Sponsor. Authorized Participants pay a transaction fee of $500 to the Trustee for each order that they place to create or redeem one or more Baskets. Authorized Participants who make deposits with the Trust in exchange for Baskets receive no fees, commissions or other form of compensation or inducement of any kind from either the Sponsor or the Trust. No Authorized Participant has any obligation or responsibility to the Sponsor or the Trust to effect any sale or resale of Shares.

Item 1A. RISK FACTORS

You should consider carefully the risks described below before making an investment decision. You should also refer to the other information included in this report, including the Trust’s financial statements and the related notes.

The value of the Shares relates directly to the value of the Mexican Pesos held by the Trust. Fluctuations in the price of the Mexican Peso could materially and adversely affect the value of the Shares.

The Shares are designed to reflect the price of the Mexican Peso, plus accumulated interest, less the Trust’s expenses. The price of the Mexican Peso has fluctuated widely over the past several years. Several factors may affect the price of the Mexican Peso, including:

Debt level and trade deficit of Mexico;

Inflation rates of the United States and Mexico and investors’ expectations concerning inflation rates;

Interest rates of the United States and Mexico and investors’ expectations concerning interest rates;

Investment and trading activities of mutual funds, hedge funds and currency funds; and

Global or regional political, economic or financial events and situations.

In addition, the Mexican Peso may not maintain its long-term value in terms of purchasing power in the future. When the price of the Mexican Peso declines, the Sponsor expects the price of a Share to decline as well.

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The USD/Mexican Peso exchange rate, like foreign exchange rates in general, can be volatile and difficult to predict. This volatility could materially and adversely affect the performance of the Shares.

Foreign exchange rates are influenced by the factors identified immediately above and may also be influenced by: changing supply and demand for a particular currency; monetary policies of governments (including exchange control programs, restrictions on local exchanges or markets and limitations on foreign investment in a country or on investment by residents of a country in other countries); changes in balances of payments and trade; trade restrictions; and currency devaluations and revaluations. Also, governments from time to time intervene in the currency markets, directly and by regulation, in order to influence prices directly. These events and actions are unpredictable. The resulting volatility in the USD/Mexican Peso exchange rate could materially and adversely affect the performance of the Shares.

If interest earned by the Trust does not exceed expenses, the Trustee will withdraw Mexican Peso from the Trust to pay these excess expenses which will reduce the amount of Mexican Peso represented by each Share on an ongoing basis and may result in adverse tax consequences.

Each outstanding Share represents a fractional, undivided interest in the Mexican Peso held by the Trust. Although the Trust generates interest, it is possible that the amount of interest earned may not exceed expenses, in which case the Trustee will withdraw Mexican Pesos from the Trust to pay these excess expenses. As a result, the amount of Mexican Pesos represented by each Share may gradually decline over time. This is true even if additional Shares are issued in exchange for additional deposits of Mexican Pesos into the Trust, as the amount of Mexican Pesos required to create Shares will proportionately reflect the amount of Mexican Pesos represented by the Shares outstanding at the time of creation. Assuming a constant Mexican Peso price, if expenses exceed interest earned, the trading price of the Shares will gradually decline relative to the price of Mexican Pesos as the amount of Mexican Pesos represented by the Shares gradually declines. In this event, the Shares will only maintain their original price if the price of Mexican Pesos increases.

Investors should be aware that a gradual decline in the amount of Mexican Pesos represented by the Shares may occur regardless of whether the trading price of the Shares rises or falls in response to changes in the price of Mexican Pesos. The estimated ordinary operating expenses of the Trust, which accrue daily, are described in “Business – The Trust – Trust Expenses.”

The payment of expenses by the Trust will result in a taxable event to Shareholders.  To the extent Trust expenses exceed interest paid to the Trust, a gain or loss may be recognized by Shareholders depending on the tax basis of the tendered Mexican Pesos. 

If the Trust incurs expenses in USD, the Trust is required to sell Mexican Pesos to pay these expenses. The sale of the Trust’s Mexican Pesos to pay expenses in USD at a time of low Mexican Peso prices could adversely affect the value of the Shares.

The Trustee will sell Mexican Pesos held by the Trust if necessary to pay Trust expenses if any incurred in USD, irrespective of then-current Mexican Pesos prices. The Trust is not actively managed and no attempt will be made to buy or sell Mexican Peso to protect against or to take advantage of fluctuations in the price of Mexican Pesos. Consequently, the Trust’s Mexican Pesos may be sold at a time when the Mexican Peso price is low, resulting in a negative effect on the value of the Shares.

Purchasing activity in the Mexican Peso market associated with the purchase of Baskets from the Trust may cause a temporary increase in the price of Mexican Pesos. This increase may adversely affect an investment in the Shares.

Purchasing activity associated with acquiring the Mexican Pesos required for deposit into the Trust in connection with the creation of Baskets may temporarily increase the market price of Mexican Pesos, which will result in higher prices for the Shares. Temporary increases in the market price of Mexican Pesos may also occur as a result of the purchasing activity of other market participants. Other market participants may attempt to benefit from an increase in the market price of Mexican Pesos that may result from increased purchasing activity of Mexican Pesos connected with the issuance of Baskets. Consequently, the market price of Mexican Pesos may decline immediately after Baskets are created. If the price of Mexican Peso declines, then it is anticipated that the trading price of the Shares will also decline. In addition, if the Trust experiences a significant increase in its expenses due to an unexpected event, then it is anticipated that the unexpected expenses would reduce the NAV of the Trust, which would cause the trading price of the Shares to decline even if the price of Mexican Pesos did not decline.

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The Deposit Accounts are not entitled to payment at any office of JPMorgan Chase Bank, N.A. located in the United States.

The federal laws of the United States prohibit banks located in the United States from paying interest on unrestricted demand deposit accounts. Therefore, payments out of the Deposit Accounts will be payable only at the London branch of JPMorgan Chase Bank, N.A., located in England. The Trustee will not be entitled to demand payment of these accounts at any office of JPMorgan Chase Bank, N.A. that is located in the United States. JPMorgan Chase Bank, N.A. will not be required to repay the deposit if its London branch cannot repay the deposit due to an act of war, insurrection or civil strife or an action by a foreign government or instrumentality (whether de jure or de facto) in England.

Shareholders do not have the protections associated with ownership of a demand deposit account insured in the United States by the Federal Deposit Insurance Corporation nor the full protection provided for bank deposits under English law.

Neither the Shares nor the Deposit Accounts and the Mexican Pesos deposited in them are a deposit insured against loss by the FDIC or any other federal agency. Deposits may have only limited protection under the Financial Services Compensation Scheme of England.

Mexican Pesos deposited in the Deposit Accounts by an Authorized Participant are commingled with Mexican Pesos deposited by other Authorized Participants and are held by the Depository in either the primary deposit account or the secondary deposit account of the Trust. Mexican Pesos held in the Deposit Accounts are not segregated from the Depository’s other assets. If the Depository becomes insolvent, then its assets might not be adequate to satisfy a claim by the Trust or any Authorized Participant. In addition, in the event of the insolvency of the Depository or the U.S. bank of which it is a branch, there may be a delay and costs incurred in recovering the Mexican Pesos held in the Deposit Accounts.

The Trust has no proprietary rights in or to any specific Mexican Pesos held by the Depository and will be an unsecured creditor of the Depository with respect to the Mexican Pesos held in the Deposit Accounts in the event of the insolvency of the Depository or the U.S. bank of which it is a branch. In the event the Depository or the U.S. bank of which it is a branch becomes insolvent, the Depository’s assets might not be adequate to satisfy a claim by the Trust or any Authorized Participant for the amount of Mexican Pesos deposited by the Trust or the Authorized Participant, in such event, the Trust and any Authorized Participant will generally have no right in or to assets other than those of the Depository.

In the case of insolvency of the Depository or JPMorgan Chase Bank, N.A., the U.S. bank of which the Depository is a branch, a liquidator may seek to freeze access to the Mexican Pesos held in all accounts by the Depository, including the Deposit Accounts. The Trust and the Authorized Participants could incur expenses and delays in connection with asserting their claims. These problems would be exacerbated by the reality that the Deposit Accounts will not be held in the U.S. but instead will be held at the London branch of a U.S. national bank, where it will be subject to English insolvency law. Further, under U.S. law, in the case of the insolvency of JPMorgan Chase Bank, N.A., the claims of creditors in respect of accounts (such as the Trust’s Deposit Accounts) that are maintained with an overseas branch of JPMorgan Chase Bank, N.A. will be subordinate to claims of creditors in respect of accounts maintained with JPMorgan Chase Bank, N.A. in the U.S., greatly increasing the risk that the Trust and the Trust’s beneficiaries would suffer a loss.

Shareholders do not have the protections associated with ownership of shares in an investment company registered under the Investment Company Act of 1940.

The Investment Company Act is designed to protect investors by preventing: insiders from managing investment companies to their benefit and to the detriment of public investors; the issuance of securities having inequitable or discriminatory provisions; the management of investment companies by irresponsible persons; the use of unsound or misleading methods of computing earnings and asset value; changes in the character of investment companies without the consent of investors; and investment companies from engaging in excessive leveraging. To accomplish these ends, the Investment Company Act requires the safekeeping and proper valuation of fund assets, restricts greatly transactions with affiliates, limits leveraging, and imposes governance requirements as a check on fund management. The Investment Company Act applies to a range of investment company structures, but, in practice, primarily regulates a company holding a portfolio of investment securities such as publicly traded stocks, bonds and money market instruments: selected by an affiliated investment adviser pursuant to the company’s stated investment objectives, policies, restrictions, strategies and techniques where the investment adviser manages the portfolio and otherwise operates the company on a day-to-day basis for a management fee and other charges and expenses and, in doing so, has conflicts of interest with the company; valued, priced for sale and redemption, physically held and traded in securities markets pursuant to computational, custody and brokerage and other transactional requirements peculiar to such a portfolio of investment securities; and overseen by the company’s board of directors that is elected, constituted and governed pursuant to specified standards developed in the context of such a portfolio of investment securities.

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The Trust is not registered as an investment company under the Investment Company Act and is not required to register under that Act. Consequently, Shareholders do not have the regulatory protections afforded to investors in registered investment companies.

Shareholders do not have the rights enjoyed by investors in certain other financial instruments.

As interests in a grantor trust, the Shares have none of the statutory rights normally associated with the ownership of shares of a business corporation, including, for example, the right to bring “oppression” or “derivative” actions. Apart from the rights afforded to them by federal and state securities laws, Shareholders have only those rights relative to the Trust, the Trust property and the Shares that are set forth in the Depositary Trust Agreement. In this connection, the Shareholders have limited voting and distribution rights. They do not have the right to elect directors. See “Business – The Shares – Limited Rights” for a description of the limited rights of the Shareholders.

The Shares may trade at a price which is at, above, or below the NAV per Share.

The NAV per Share fluctuates with changes in the market value of the Trust’s assets. The market price of Shares can be expected to fluctuate in accordance with changes in the NAV per Share, but also in response to market supply and demand. As a result, the Shares might trade at prices at, above or below the NAV per Share.

The interest rate earned by the Trust, although competitive, may not be the best rate available. If the Sponsor determines that the interest rate is inadequate, then its sole recourse is to remove the Depository and terminate the Deposit Accounts.

The Depository is committed to endeavor to pay a competitive interest rate on the balance of Mexican Peso in the primary deposit account of the Trust. Interest on the primary deposit account accrues daily and is paid monthly. The Sponsor discloses the current interest rate on the Trust’s website. If the Sponsor believes that the interest rate paid by the Depository is not adequate, the Sponsor’s sole recourse is to remove the Depository and terminate the Deposit Accounts. The Depository is not paid a fee for its services to the Trust; rather, generates income or loss based on its ability to earn a “spread” or “margin” over the interest it pays to the Trust by using the Trust’s Mexican Peso to make loans or in other banking operations. For these reasons, you should not expect that the Trust will be paid the best available interest rate at any time or over time.

The Depository owes no fiduciary duties to the Trust or the Shareholders, is not required to act in their best interest and could resign or be removed by the Sponsor, which would trigger early termination of the Trust.

The Depository is not a trustee for the Trust or the Shareholders. As stated above, the Depository is not obligated to maximize the interest rate paid to the Trust. In addition, the Depository has no duty to continue to act as the depository of the Trust. The Depository can terminate its role as depository for any reason whatsoever upon 90 days’ notice to the Trust. Such a termination might result, for example, if the Sponsor determines that the interest rate paid by the Depository is inadequate. In the event that the Depository were to resign or be removed, the Trust will be terminated.

Shareholders may incur significant fees upon the termination of the Trust.

The occurrence of any one of several events would either require the Trust to terminate or permit the Sponsor to terminate the Trust. For example, if the Depository were to resign or be removed, then the Sponsor would be required to terminate the Trust. Shareholders tendering their Shares within 90 days of the Trust’s termination will receive the amount of Mexican Pesos represented by their Shares. Shareholders may incur significant fees if they choose to convert the Mexican Pesos they receive to U.S. Dollars.

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Redemption orders are subject to rejection by the Trustee under certain circumstances.

The Trustee will reject a redemption order if the order is not in proper form as described in the Participant Agreement or if the fulfillment of the order, in the opinion of its counsel, might be unlawful. Any such rejection could adversely affect a redeeming Shareholder. For example, the resulting delay would adversely affect the value of the Shareholder’s redemption distribution if the NAV were to decline during the delay. In accordance with the Depositary Trust Agreement, the Sponsor and the Trustee disclaim any liability for any loss or damage that may result from any such rejection.

Substantial sales of Mexican Peso by the official sector could adversely affect an investment in the Shares.

The official sector consists of central banks, other governmental agencies and multi-lateral institutions that buy, sell and hold Mexican Pesos as part of their reserve assets. The official sector holds a significant amount of Mexican Pesos that can be mobilized in the open market. In the event that future economic, political or social conditions or pressures require members of the official sector to sell their Mexican Peso simultaneously or in an uncoordinated manner, the demand for Mexican Pesos might not be sufficient to accommodate the sudden increase in the supply of Mexican Pesos to the market. Consequently, the price of the Mexican Pesos could decline, which would adversely affect an investment in the Shares.

Shareholders that are not Authorized Participants may only purchase or sell their Shares in secondary trading markets.

Only Authorized Participants may create or redeem Baskets of Shares through the Trust. All other investors that desire to purchase or sell Shares must do so through NYSE Arca or in other markets, if any, in which the Shares are traded.

The liability of the Sponsor and the Trustee under the Depositary Trust Agreement is limited and, except as set forth in the Depositary Trust Agreement, they are not obligated to prosecute any action, suit or other proceeding in respect of any Trust property.

The Depositary Trust Agreement provides that neither the Sponsor nor the Trustee assumes any obligation or is subject to any liability under the Trust Agreement to any Shareholder, except that they each agree to perform their respective obligations specifically set forth in the Depositary Trust Agreement without negligence or bad faith. Additionally, neither the Sponsor nor the Trustee is obligated to, although each may in its respective discretion, prosecute any action, suit or other proceeding in respect of any Trust property. The Depositary Trust Agreement does not confer upon Shareholders the right to prosecute any such action, suit or other proceeding.

The Depositary Trust Agreement may be amended to the detriment of Shareholders without their consent.

The Sponsor and the Trustee may amend most provisions (other than those addressing core economic rights) of the Depositary Trust Agreement without the consent of any Shareholder. Such an amendment could impose or increase fees or charges borne by the Shareholders. Any amendment that increases fees or charges (other than taxes and other governmental charges, registration fees or other expenses), or that otherwise prejudices any substantial existing rights of Shareholders, will not become effective until 30 days after written notice is given to Shareholders.

The License Agreement with The Bank of New York may be terminated by The Bank of New York in the event of a material breach. Termination of the License Agreement might lead to early termination and liquidation of the Trust.

The Bank of New York (“BNY”) and an affiliate of the Sponsor have entered into a License Agreement granting the Sponsor’s affiliate a license to certain patent applications made by BNY covering systems and methods for securitizing a commodity. The Sponsor’s affiliate has sublicensed the license to the Sponsor. The license is limited to a non-exclusive grant for the life of BNY’s patents and patent applications. The License Agreement provides that each of the parties may provide notice of intent to terminate the License Agreement in the event the other party commits a material breach. If the License Agreement is terminated and one or more of BNY’s patent applications issue as patents, then BNY may claim that the operation of the Trust violates its patent or patents and seek an injunction forcing the Trust to cease operation and the Shares to cease trading. In that case, the Trust might be forced to terminate and liquidate, which would adversely affect Shareholders.

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Item 1B. UNRESOLVED STAFF COMMENTS

None.

Item 2. PROPERTIES

The principal offices of the Sponsor and the Trust are at 9601 Blackwell Road, Suite 500, Rockville, Maryland 20850 which is leased by an affiliate of the Sponsor. Neither the Sponsor nor the Trust owns or leases any other property.

Item 3. LEGAL PROCEEDINGS

None.

Item 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

None.










8


PART II

Item 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES.

For each of the quarters during the fiscal years ended October 31, 2007 and October 31, 2006, the high and low sale prices of the Shares reported for NYSE (prior to October 30, 2007) and NYSE Arca transactions (on and after October 30, 2007) were as follows:

Fiscal Year Ended October 31, 2007:
High
Low
Quarter Ended    
January 31, 2007 $93.10 $90.50
April 30, 2007 $92.01 $89.21
July 31, 2007 $93.65 $91.34
October 31, 2007 $94.36 $89.41
 
Fiscal Year Ended October 31, 2006:
High
Low
Quarter Ended
July 31, 2006 (beginning June 26, 2006) $92.50 $87.50
October 31, 2006 $93.62 $90.30

The number of record holders of Shares of the registrant as of November 30, 2007 was approximately 62.

Although the Trust does not purchase Shares directly from its shareholders, the Trust redeemed Baskets from Authorized Participants in the fourth quarter of the fiscal year covered by this report as follows:

Month Shares Average Price
August 100,000 $90.70
      September -- --
 October -- --

Item 6. SELECTED FINANCIAL DATA

Financial highlights for the fiscal year ended October 31, 2007 and the period from June 8, 2006 (date of inception) to October 31, 2006.

Income Year ended October
31, 2007

June 8, 2006
[Date of Inception]
to October 31, 2006

Interest income     $ 1,017,980   $ 196,834  


Total Income    1,017,980    196,834  
Expenses  
Sponsor’s fee    (62,843 )  (12,521 )


Total Expenses    (62,843 )  (12,521 )
Net Income   $ 955,137   $ 184,313  
Other Comprehensive Income  
Currency translation adjustment   $ 7,269    4,199  


Total Comprehensive Income   $ 962,406   $ 188,512  


Earnings per share   $ 5.54   $ 2.05  
Weighted-average Shares Outstanding    172,466    89,726  
Cash Dividends per Share   $ 5.64   $ 1.50  

For the fiscal year ended October 31, 2007, total assets were $23,494,621 and net cash flows were $14,077,721.

9


Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

MOVEMENTS IN THE PRICE OF THE MEXICAN PESO

The investment objective of the Trust is for the Shares to reflect the price of the Mexican Peso plus accrued interest, less the expenses of the Trust’s operations. The Shares are intended to provide institutional and retail investors with a simple, cost-effective means of gaining investment benefits similar to those of holding Mexican Peso. Each outstanding Share represents a proportional interest in the Mexican Pesos held by the Trust. The following chart provides recent trends on the price of the Mexican Peso. The chart illustrates movements in the price of the Mexican Peso in USD and is based on the Noon Buying Rate as determined by the Federal Reserve Bank of New York.

Historical values of the Noon Buying Rate can be obtained at http://www.ny.frb.org/markets/fxrates/noon.cfm.

NAV PER SHARE; VALUATION OF THE MEXICAN PESO

The following chart illustrates the movement in the price of the Shares based on NAV per Share and the “bid” and “ask” midpoint offered on the NYSE (prior to October 30, 2007) and NYSE Arca (on or after October 30, 2007) as of the Noon Buying Rate versus the corresponding Mexican Peso (expressed as a multiple of 1,000 Mexican Pesos – Noon Buying Rate x 1,000):

10


LIQUIDITY

The Sponsor is not aware of any trends, demands, conditions or events that are reasonably likely to result in material changes to the Trust’s liquidity needs. The Trust’s Depository, JPMorgan Chase, London branch, maintains two deposit accounts for the Trust, a primary deposit account that earns interest and a secondary deposit account that does not earn interest. Interest on the primary deposit account accrues daily and is paid monthly. The interest rate paid as of October 31, 2007 was an annual nominal rate of 5.53%. The following chart provides the daily rate paid by the Depository since the Shares began trading on June 26, 2006:

11


In exchange for a fee, the Sponsor bears most of the expense incurred by the Trust. As a result, the only ordinary expense of the Trust during the period covered by this report was the Sponsor’s fee. Each month the Depository deposits into the secondary deposit account accrued but unpaid interest and the Trustee, withdraws Mexican Pesos from the secondary deposit account to pay the accrued Sponsor’s fee for the previous month plus other Trust expenses, if any. When the interest deposited exceeds the sum of the Sponsor’s fee for the prior month plus other Trust expenses, if any, the Trustee converts the excess into USD at a prevailing market rate and distributes the USD as promptly as practicable to Shareholders on a pro rata basis (in accordance with the number of Shares that they own). Distributions paid during the current reporting period follow (annualized yield reflects the estimated annual yield an investor would receive if a monthly distribution stayed the same for the entire year going forward, and is calculated by annualizing the monthly distribution and dividing by the Trust NAV for the dates listed below):

FXM Distribution History
 

Date Value NAV Yield Annualized
Yield
10/1/2007 $0.45377 $91.65 0.50% 6.02%
9/4/2007 $0.46538 $90.72 0.51% 6.04%
8/1/2007 $0.48556 $91.25 0.53% 6.27%

CRITICAL ACCOUNTING ESTIMATES

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Sponsor’s management to make estimates and assumptions that affect the reported amounts of the assets and liabilities and disclosures of contingent liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period covered by this report.

In addition to the description below, please refer to Note 2 to the consolidated financial statements for further discussion of our accounting policies.

The Trustee calculates the Trust’s NAV each business day. For NAV calculation purposes, Mexican Peso Deposits (cash) are translated at the Noon Buying Rate as determined and published by the Federal Reserve Bank of New York as of 12:00 PM (New York time) on each day that NYSE Arca is open for regular trading. If, on a particular evaluation day, the Noon Buying Rate has not been determined and announced by 2:00 PM (New York time), then the most recent Noon Buying Rate is used to determine the NAV of the Trust unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate to use as the basis for such valuation.

The functional currency of the Trust is the Mexican Peso in accordance with Financial Accounting Standard 52, Foreign Currency Translation.

RESULTS OF OPERATIONS

The Trust was formed on June 8, 2006 and the Shares commenced trading on the NYSE on June 26, 2006. The primary listing of the Shares was transferred to NYSE Arca on October 30, 2007. As of October 31, 2006 the number of Mexican Peso owned by the Trust was 100,000,000 resulting in a redeemable capital share value of $9,335,391. During fiscal year end October 31, 2007 an additional 350,000 Shares had been created in exchange for 350,000,000 Mexican Pesos and 200,000 Shares had been redeemed in exchange for 200,000,000 Mexican Pesos. As of October 31, 2007 the number of Mexican Peso owned by the Trust was 250,000,000 resulting in a redeemable capital share value of $23,486,661.

Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not applicable.

Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

See Index to Financial Statements on page F-1 for a list of the financial statements being filed therein.

12


Item 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE.

None.

Item 9A. CONTROLS AND PROCEDURES.

The chief executive officer and chief financial officer of the Sponsor have evaluated the effectiveness of the Trust’s disclosure controls and procedures (as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended) as of October 31, 2007. Based on that evaluation, the chief executive officer and chief financial officer of the Sponsor have concluded that the disclosure controls and procedures of the Trust were effective as of the end of the period covered by this annual report.

Item 9B. OTHER INFORMATION.

Not applicable.









13


PART III

Item 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.

Not applicable.

Item 11. EXECUTIVE COMPENSATION.

Not applicable.

Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.

None.

Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE.

Not applicable.

Item 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

PricewaterhouseCoopers LLP is the independent registered public accounting firm for the Trust. Fees for services performed by PricewaterhouseCoopers LLP for the fiscal year ended October 31, 2007 and the period from June 8, 2006 through October 31, 2006 were:

2007
2006
Audit Fees     $ 23,929   $ 13,500  
Audit-related fees    30,357    7,143  
Tax fees    0    0  
All other Fees    0    0  


   $54,286   $20,643  








14


PART IV

Item 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

FINANCIAL STATEMENTS

See Index to Financial Statements on Page F-1 for a list of the financial statements being filed as a part of this report. Schedules have been omitted since they are either not required, not applicable or the information has otherwise been included.

EXHIBITS

Exhibit
No.

Description
  3.1 Certificate of Formation of Rydex Specialized Products LLC, incorporated herein by reference to Exhibit 3.1 filed with Amendment No. 1 to Form S-1 Registration Statement (File number 333-132367) filed on June 9, 2006.
 
  3.2 Limited Liability Company Agreement of Rydex Specialized Products, LLC, incorporated herein by reference to Exhibit 3.2 filed with Amendment No. 1 to Form S-1 Registration Statement (File number 333-132367) filed on June 9, 2006.
 
  4.1 Form of Depositary Trust Agreement, incorporated herein by reference to Exhibit 4.1 filed with Amendment No. 1 to Form S-1 Registration Statement (File number 333-132367) filed on June 9, 2006.
 
  4.2 Form of Participant Agreement, incorporated herein by reference to Exhibit 4.2 filed with Amendment No. 1 to Form S-1 Registration Statement (File number 333-132367) filed on June 9, 2006.
 
10.1 Form of Deposit Account Agreement, incorporated herein by reference to Exhibit 10.1 filed with Amendment No. 1 to Form S-1 Registration Statement (File number 333-132367) filed on June 9, 2006.
 
10.2 Form of Sublicense Agreement, incorporated herein by reference to Exhibit 10.2 filed with Amendment No. 1 to Form S-1 Registration Statement (File number 333-132367) filed on June 9, 2006.
 
31.1 Certification by Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
31.2 Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
 
32.1 Certification by Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
32.2 Certification by Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.



15


CurrencySharesSM Mexican Peso Trust
Financial Statements as of October 31, 2007
Index

Page

Report of Independent Registered Public Accounting Firm
F-2

Statements of Financial Condition at October 31, 2007 and October 31, 2006
F-3

Statements of Income and Comprehensive Income for the year ended October 31, 2007
F-4
and the period from June 8, 2006 (date of inception) to October 31, 2006

Statements of Changes in Shareholders' Equity for the year ended October 31, 2007
F-5
and the period from June 8, 2006 (date of inception) to October 31, 2006

Statements of Cash Flows for the year ended October 31, 2007 and the period from
F-6
June 8, 2006 (date of inception) to October 31, 2006

Notes to the Financial Statements
F-7







F-1


Report of Independent Registered Public Accounting Firm

To the Shareholders of CurrencySharesSM Mexican Peso Trust:

In our opinion, the accompanying statements of financial condition and the related statements of income and comprehensive income, of changes in shareholders’ equity and of cash flows present fairly, in all material respects, the financial position of CurrencySharesSM Mexican Peso Trust (the “Trust”) at October 31, 2007 and October 31, 2006, and the results of its operations, its changes in shareholders’ equity and its cash flows for the year ended October 31, 2007 and for the period June 8, 2006 (commencement of operations) through October 31, 2006 in conformity with accounting principles generally accepted in the United States of America. These financial statements are the responsibility of the Trust’s management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

PricewaterhouseCoopers LLP

January 25, 2008
Baltimore, Maryland





F-2


CurrencySharesSM Mexican Peso Trust

Statements of Financial Condition

Assets October 31, 2007 October 31, 2006
Current Assets            
Mexican Peso deposits, interest bearing   $ 23,365,359   $ 9,287,638  
Mexican Peso deposits, non-interest bearing    --    --  
Receivable from accrued interest    129,262    50,917  


Total Assets   $ 23,494,621   $ 9,338,555  



Liabilities and Shareholders’ Equity
  
Current Liabilities  
Accrued Sponsor’s fee   $ 7,960   $ 3,164  


Total Liabilities    7,960    3,164  

Commitments and Contingent Liabilities (note 8)
    --    --  
Redeemable Capital Shares, at redemption value, no par value,  
12,000,000 authorized - 250,000 and 100,000 issued and  
outstanding, respectively    23,486,661    9,335,391  
Shareholders’ Equity - Retained Earnings and Cumulative-  
Translation Adjustment    --    --  
     


Total Liabilities and Shareholders’ Equity   $ 23,494,621   $ 9,338,555  


See Notes to Financial Statements.





F-3


CurrencySharesSM Mexican Peso Trust

Statements of Income and Comprehensive Income

Year ended
October 31, 2007
June 8, 2006
[Date of Inception]
to October 31, 2006

Income
           
Interest income   $ 1,017,980   $ 196,834  


Total Income    1,017,980    196,834  

Expenses
  
Sponsor’s fee    (62,843 )  (12,521 )


Total Expenses    (62,843 )  (12,521 )

Net Income
   $ 955,137   $ 184,313  



Other Comprehensive Income
  
     
Currency translation adjustment    7,269    4,199  



Total Comprehensive Income
   $ 962,406   $ 188,512  



Earnings per share
   $ 5.54   $ 2.05  
Weighted-average Shares Outstanding    172,466    89,726  
Cash Dividends per Share   $ 5.64   $ 1.50  

See Notes to Financial Statements.





F-4


CurrencySharesSM Mexican Peso Trust

Statements of Changes in Shareholders’ Equity

Year ended
October 31, 2007
June 8, 2006
[Date of Inception]
to October 31, 2006

Retained Earnings Balance, Beginning of Period
    $ --   $ --  

Net Income
    955,137    184,313  

Distributions Paid
    (973,890 )  (134,622 )

Adjustment of redeemable capital shares to redemption value
    18,753    (49,691 )



Retained Earnings Balance, End of Period
   $ --   $ --  



Cumulative Translation Adjustment, Beginning of Period
   $ --   $ --  

Currency translation adjustment
    7,269    4,199  

Adjustment of redeemable capital shares to redemption value
    (7,269 )  (4,199 )



Cumulative Translation Adjustment, End of Period
   $ --   $ --  


See Notes to Financial Statements.





F-5


CurrencySharesSM Mexican Peso Trust

Statements of Cash Flows

Year ended
October 31, 2007
June 8, 2006
[Date of Inception]
to October 31, 2006

Cash flows from operating activities
           
Cash received for accrued income   $ 942,291   $ 147,052  
Cash paid for expenses    (58,215 )  (9,427 )


Net cash provided by operating activities    884,076    137,625  

Cash flows from financing activities
  
Cash received to purchase redeemable shares    32,155,038    22,728,840  

Cash paid to redeem redeemable shares
    (18,341,904 )  (13,651,179 )
Cash paid for distributions    (973,890 )  (134,622 )


Net cash provided by financing activities    12,839,244    8,943,039  

Adjustment to period cash flows due to currency movement
    354,401    206,887  


Increase in cash    14,077,721    9,287,551  
Cash at beginning of period    9,287,638    87  


Cash at end of period   $ 23,365,359   $ 9,287,638  



Reconciliation of net income to net cash provided by
  
operating activities  

Net income
   $ 955,137   $ 184,313  
Adjustments to reconcile net income to net cash  
provided by operating activities  

Increase in receivable from accrued interest
    (129,262 )  (50,917 )
Decrease in prior period receivable from accrued interest    50,917    --  
Currency translation adjustment    2,488    1,065  
Increase in accrued sponsor fee    7,960    3,164  
Decrease in prior period accrued sponsor fee    (3,164 )  --  



Net cash provided by operating activities
   $ 884,076   $ 137,625  

See Notes to Financial Statements.


F-6


Notes to Financial Statements

1. Organization and Description of the Trust

The CurrencySharesSM Mexican Peso Trust (the “Trust”) was formed under the laws of the State of New York on June 8, 2006 when Rydex Specialized Products LLC d/b/a “Rydex Investments” (the “Sponsor”) deposited 1,000 Mexican Peso in the Trust’s primary deposit account held by JPMorgan Chase Bank N.A., London Branch (the “Depository”). The Sponsor is a Delaware limited liability company whose sole member is PADCO Advisors II, Inc. (also d/b/a “Rydex Investments”). The Sponsor is responsible for, among other things, overseeing the performance of The Bank of New York (the “Trustee”) and the Trust’s principal service providers, including the preparation of financial statements. The Trustee is responsible for the day-to-day administration of the Trust.

The investment objective of the Trust is for the Trust’s shares (the “Shares”) to reflect the price of the Mexican Peso plus accrued interest less the Trust’s expenses and liabilities. The Shares are intended to provide investors with a simple, cost-effective means of gaining investment benefits similar to those of holding Mexican Pesos. The Trust’s assets primarily consist of Mexican Pesos on demand deposit in two deposit accounts maintained by the Depository: a primary deposit account which earns interest and a secondary deposit account which does not earn interest. The secondary deposit account is used to account for interest received and paid out on creations and redemptions of blocks of 50,000 Shares (“Baskets”). The secondary account is also used to account for interest earned on the primary deposit account, pay Trust expenses and distribute any excess interest to holders of Shares (“Shareholders”) on a monthly basis.

The accompanying audited financial statements were prepared in accordance with accounting principles generally accepted in the United States of America.

2. Significant Accounting Policies

  A. Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of the assets, liabilities and disclosures of contingent liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results could differ from those estimates.

  B. Foreign Currency Translation

The Trustee calculates the Trust’s net asset value (“NAV”) each business day, as described in Note 4. For NAV calculation purposes, Mexican Peso Deposits (cash) are translated at the Noon Buying Rate, which is the U.S. Dollar (“USD”)/ Mexican Peso exchange rate as determined and published by the Federal Reserve Bank of New York as of 12:00 PM (New York time) on each day that NYSE Arca is open for regular trading.

The functional currency of the Trust is the Mexican Peso in accordance with Financial Accounting Standard (“FAS”) 52, Foreign Currency Translation. For financial statement reporting purposes, the U.S. Dollar is the reporting currency. As a result, the financial statements are translated from Mexican Pesos to USD. The Noon Buying Rate on the last day of the period is used for translation in the statements of financial condition. The average Noon Buying Rate for the period is used for translation in the statement of income and comprehensive income and the statement of cash flows. Any currency translation adjustment is included in comprehensive income.

F-7


  C. Federal Income Taxes

The Trust is treated as a “grantor trust” for federal income tax purposes and, therefore, no provision for federal income taxes is required. Interest, gains and losses are “passed through” to the Shareholders.

Shareholders generally will be treated, for U.S. federal income tax purposes, as if they directly owned a pro-rata share of the assets held in the Trust. Shareholders also will be treated as if they directly received their respective pro-rata shares of the Trust’s income, if any, and as if they directly incurred their respective pro-rata shares of the Trust’s expenses. The acquisition of Shares by a U.S. Shareholder as part of a creation of a Basket will not be a taxable event to the Shareholder.

The Sponsor’s fee accrues daily and is payable monthly. For U.S. federal income tax purposes, an accrual-basis U.S. Shareholder generally will be required to take into account as an expense its allocable share of the USD-equivalent of the amount of the Sponsor’s fee that is accrued on each day, with such USD-equivalent being determined by the currency exchange rate that is in effect on the respective day. To the extent that the currency exchange rate on the date of payment of the accrued amount of the Sponsor’s fee differs from the currency exchange rate in effect on the day of accrual, the U.S. Shareholder will recognize a currency gain or loss for U.S. federal income tax purposes.

The Trust does not expect to generate taxable income except for gain (if any) upon the sale of Mexican Pesos and interest income. A non-U.S. Shareholder generally will not be subject to U.S. federal income tax with respect to gain recognized upon the sale or other disposition of Shares, or upon the sale of Mexican Pesos by the Trust, unless: (1) the non-U.S. Shareholder is an individual and is present in the United States for 183 days or more during the taxable year of the sale or other disposition, and the gain is treated as being from United States sources; or (2) the gain is effectively connected with the conduct by the non-U.S. Shareholder of a trade or business in the United States.

A non-U.S. Shareholder’s share of any interest income earned by the Trust generally will not be subject to U.S. federal income tax unless the Shares owned by such non-U.S. Shareholder are effectively connected with the conduct by the non-U.S. Shareholder of a trade or business in the United States.

  D. Revenue Recognition

Interest on the primary deposit account accrues daily as earned and is received on a monthly basis.

  E. Dividends

To the extent that the interest earned by the Trust exceeds the sum of the Sponsor’s fee for the prior month plus other Trust expenses, if any, the Trust will distribute, as a dividend, the excess interest earned in Mexican Pesos effective on the first business day of the subsequent month. The Trustee will direct that the excess Mexican Pesos be converted into USD at the prevailing market rate and the Trustee will distribute the USD as promptly as practicable to Shareholders on a pro rata basis (in accordance with the number of Shares that they own). For the month of October 2007, an income distribution of $0.48717 per share was paid on November 8, 2007.

F-8


3. Mexican Peso Deposits

Mexican Peso principal deposits are held in a Mexican Peso-denominated, interest-bearing demand account. For the year ending October 31, 2007, there were Mexican Peso principal deposits of 350,000,000 and Mexican Peso principal redemptions of 200,000,000 resulting in an ending Mexican Peso principal balance of 250,000,000. This equates to 23,365,359 USD. For the period from June 8, 2006 (Date of Inception) to October 31, 2006, there were Mexican Peso principal deposits of 250,000,000 and Mexican Peso principal redemptions of 150,001,000 resulting in an ending Mexican Peso principal balance of 100,000,000. This equated to 9,287,638 USD. In addition, net interest associated with creation and redemption activity is held in a Mexican Peso -denominated non-interest-bearing account, and any balance is distributed in full as part of the monthly income distributions.

4. Redeemable Capital Shares

Shares are classified as “redeemable” for financial statement purposes, since they are subject to redemption. Shares are issued and redeemed continuously in Baskets in exchange for Mexican Pesos. Individual investors cannot purchase or redeem Shares in direct transactions with the Trust. Only Authorized Participants (as defined below) may place orders to create and redeem Baskets. An Authorized Participant is a DTC participant that is a registered broker-dealer or other institution eligible to settle securities transactions though the book-entry facilities of the DTC and which has entered into a contractual arrangement with the Trust and the Sponsor governing, among other matters, the creation and redemption process. Authorized Participants may redeem their Shares at any time in Baskets.

Due to expected continuing creations and redemptions of Baskets and the three-day period for settlement of each creation or redemption, the Trust reflects Shares created as a receivable. Shares redeemed are reflected as a liability on the trade date. Outstanding Shares are reflected at a redemption value, which is the NAV per Share at the period end date. Adjustments to redeemable capital shares at redemption value are recorded against retained earnings, or, in the absence of retained earnings, by charges against the cumulative translation adjustment.

Activity in redeemable capital Shares is as follows:

Year ended
October 31, 2007
Period from June 8, 2006
[Date of Inception]
to October 31, 2006
Shares
U.S. Dollar
Amount

Shares
U.S. Dollar
Amount

Opening balance      100,000   $ 9,335,391    1   $ 87  

Shares issued
    350,000    32,155,038    250,000    22,728,840  

Shares redeemed
    (200,000 )  (18,341,904 )  (150,001 )  (13,651,179 )
Adjustment to period Shares due to  
currency movement and other    --    338,136    --    257,643  





Ending redemption balance
    250,000   $ 23,486,661    100,000   $ 9,335,391  





F-9


The Trustee will calculate the Trust’s NAV each business day. To calculate the NAV, the Trustee will subtract the Sponsor’s accrued fee through the previous day from the Mexican Pesos held by the Trust (including all unpaid interest accrued through the preceding day) and calculate the value of the Mexican Pesos in USD based upon the Noon Buying Rate. If, on a particular evaluation day, the Noon Buying Rate has not been determined and announced by 2:00 PM (New York time), then the most recent Federal Reserve Bank of New York determination of the Noon Buying Rate shall be used to determine the NAV of the Trust unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate to use as the basis for such valuation. In the event that the Trustee and the Sponsor determine that the most recent Federal Reserve Bank of New York determination of the Noon Buying Rate is not an appropriate basis for valuation of the Trust’s Mexican Pesos, they shall determine an alternative basis for such evaluation to be employed by the Trustee. The Trustee also determines the NAV per Share, which equals the NAV of the Trust divided by the number of outstanding Shares. Shares deliverable under a purchase order are considered outstanding for purposes of determining NAV per Share; Shares deliverable under a redemption order are not considered outstanding for this purpose.

5. Sponsor’s Fee

The Sponsor’s fee accrues daily at an annual nominal rate of 0.40% of the Mexican Pesos in the Trust (including all unpaid interest but excluding unpaid fees, each as accrued through the immediately preceding day) and is paid monthly.

The Sponsor assumes and pays the following administrative and marketing expenses incurred by the Trust: the Trustee’s monthly fee, NYSE Arca listing fees, SEC registration fees, typical maintenance and transaction fees of the Depository, printing and mailing costs, audit fees and expenses, up to $100,000 per year in legal fees and expenses, and applicable license fees. The Sponsor has also paid the costs of the Trust’s organization and the initial sales of the Shares, which were approximately $232,000 when the Trust was formed.

In certain exceptional cases the Trust will pay for some expenses in addition to the Sponsor’s fee. These exceptions include expenses not assumed by the Sponsor (i.e., expenses other than those identified in the preceding paragraph), taxes and governmental charges, expenses and costs of any extraordinary services performed by the Trustee or the Sponsor on behalf of the Trust or action taken by the Trustee or the Sponsor to protect the Trust or the interests of Shareholders, indemnification of the Sponsor under the Depositary Trust Agreement, and legal expenses in excess of $100,000 per year.

6. Related Parties

The Sponsor is a related party of the Trust. The Sponsor oversees the performance of the Trustee and the Trust’s principal service providers, including the preparation of financial statements, but does not exercise day-to-day oversight over the Trustee or the Trust’s service providers. The Sponsor has paid the costs of the Trust’s organization and the initial sales of the Shares, as described in Note 5.

7. Concentration Risk

All of the Trust’s assets are Mexican Pesos, which creates a concentration risk associated with fluctuations in the price of the Mexican Peso. Accordingly, a decline in the price of the Mexican Peso to USD exchange rate will have an adverse effect on the value of the Shares. Factors that may have the effect of causing a decline in the price of the Mexican Peso include national debt levels and trade deficits, domestic and foreign inflation rates, domestic and foreign interest rates, investment and trading activities of institutions and global or regional political, economic or financial events and situations. Substantial sales of Mexican Pesos by the official sector (central banks, other governmental agencies and related institutions that buy, sell and hold Mexican Pesos as part of their reserve assets) could adversely affect an investment in the Shares.

F-10


8. Commitments and Contingencies

Under the Trust’s organizational documents, the Sponsor is indemnified against any liability or expense it incurs without negligence, bad faith or willful misconduct on its part. The Trust’s maximum exposure under these arrangements is unknown, as this would involve future claims that may be made against the Trust that have not yet occurred.

9. Subsequent Events

On January 17, 2008 Rydex NV, Inc., parent company of the Sponsor, was acquired by Security Benefit Corporation.










F-11


SIGNATURES

        Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Rockville, State of Maryland, on January 25, 2008

CURRENCYSHARESSM
MEXICAN PESO TRUST

 
By  Rydex Specialized Products LLC
      Sponsor of the CurrencySharesSM
      Mexican Peso Trust


 
      By:  /s/ Carl. G. Verboncoeur
              Carl G. Verboncoeur
              CEO and Treasurer

        Pursuant to the requirements of the Securites Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities* and on the dates indicated.

Signature
Capacity
Date
/s/ Carl G. Verboncoeur Director, CEO and Treasurer January 25, 2008
Carl G. Verboncoeur (principal executive officer)

/s/ Nick Bonos
Director and CFO January 25, 2008
Nick Bonos (principal financial officer and
principal accounting officer)

/s/ Michael Byrum
Director and Secretary January 25, 2008
Michael Byrum

        The registrant is a trust and the persons are signing in their capacities as officers or directors of Rydex Specialized Products LLC, the Sponsor of the registrant.


EXHIBIT 31.1

CERTIFICATION PURSUANT TO SECTION 302(A)
OF THE SARBANES-OXLEY ACT OF 2002

I, Carl G. Verboncoeur, certify that:

1.     I have reviewed the Annual Report on Form 10-K for the fiscal year ended October 31, 2007 of CurrencySharesSM Mexican Peso Trust;

2.     Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.     Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.     The other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

    (a)        Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

    (b)        Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

    (c)        Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.     The other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and PADCO Advisors II, Inc.‘s auditors and the board of directors of PADCO Advisors II, Inc. and the board of directors of Rydex Fund Services, Inc. and the audit committee of Rydex Specialized Products LLC’s board of managers (or persons performing equivalent functions):

    (a)        All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

    (b)        Any fraud, whether or not material, that involves persons who have a significant role in the registrant’s internal control over financial reporting.

Date: January 25, 2008

/s/ Carl G. Verboncoeur
Carl G. Verboncoeur
Chief Executive Officer
(principal executive officer)


EXHIBIT 31.2

CERTIFICATION PURSUANT TO SECTION 302(A)
OF THE SARBANES-OXLEY ACT OF 2002

I, Nick Bonos, certify that:

1.     I have reviewed the Annual Report on Form 10-K for the fiscal year ended October 31, 2007 of CurrencySharesSM Mexican Peso Trust;

2.     Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.     Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.     The other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

    (a)        Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

    (b)        Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

    (c)        Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.     The other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and PADCO Advisors II, Inc.‘s auditors and the board of directors of PADCO Advisors II, Inc. and the board of directors of Rydex Fund Services, Inc. and the audit committee of Rydex Specialized Products LLC’s board of managers (or persons performing equivalent functions):

    (a)        All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

    (b)        Any fraud, whether or not material, that involves persons who have a significant role in the registrant’s internal control over financial reporting.

Date: January 25, 2008

/s/ Nick Bonos
Nick Bonos
Chief Financial Officer
(principal financial officer)


EXHIBIT 32.1

CERTIFICATION PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of CurrencySharesSM Mexican Peso Trust (the “Trust”) on Form 10-K for the fiscal year ended October 31, 2007 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Carl G. Verboncoeur, Chief Executive Officer of Rydex Specialized Products LLC, the Sponsor of the Trust, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

1.     The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.     The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Trust.

Date: January 25, 2008

/s/ Carl G. Verboncoeur
Carl G. Verboncoeur*
Chief Executive Officer
(principal executive officer)

* The Registrant is a trust and Carl G. Verboncoeur is signing in his capacity as the principal executive officer of Rydex Specialized Products LLC, the Sponsor of the Registrant.


EXHIBIT 32.2

CERTIFICATION PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of CurrencySharesSM Mexican Peso Trust (the “Trust”) on Form 10-K for the fiscal year ended October 31, 2007 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Nick Bonos, Chief Financial Officer of Rydex Specialized Products LLC, the Sponsor of the Trust, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

1.     The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.     The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Trust.

Date: January 25, 2008

/s/ Nick Bonos
Nick Bonos*
Chief Financial Officer
(principal financial officer)

* The Registrant is a trust and Nick Bonos is signing in his capacity as the principal financial officer of Rydex Specialized Products LLC, the Sponsor of the Registrant.