Filed Pursuant to Rule 424(b)(3)
Registration No. 333-125581

Prospectus Supplement No. 12 dated June 14, 2007
(to Prospectus dated December 9, 2005)

17,000,000 Shares
CurrencyShares SM Euro Trust

        This Prospectus Supplement No. 12 amends and supplements our prospectus dated December 9, 2005 (the “Prospectus”). This Prospectus Supplement No. 12 should be read in conjunction with, and must be delivered with, Prospectus No. 11 dated March 19, 2007 (“Prospectus Supplement No. 11”) and Prospectus Supplement No. 7 dated January 29, 2007 (with Prospectus Supplement No. 11 and this Prospectus Supplement No. 12, the “Prospectus Supplements”).

        This Prospectus Supplement No. 12 includes the attached Quarterly Report on Form 10-Q for the quarter ended April 30, 2007 filed by us with the Securities and Exchange Commission.

        All other portions of the Prospectus, as amended by the Prospectus Supplements, 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 June 14, 2007


CURRENCYSHARESSM EURO TRUST
Index

Caption Page

PART I FINANCIAL INFORMATION
 

Item 1. Financial Statements

Statements of Financial Condition at April 30, 2007 (unaudited) and October 31, 2006
  2

Statements of Income and Comprehensive Income for the three months ended April 30,
  3
2007 (unaudited), the six months ended April 30, 2007 (unaudited), the three months
ended April 30, 2006 and the period from December 5, 2005 (Date of Inception) to
April 30, 2006 (unaudited).

Statement of Changes in Shareholders' Equity for the six months ended April 30, 2007
  4
(unaudited) and the period from December 5, 2005 (Date of Inception) to April 30, 2006.

Statement of Cash Flows for the six months ended April 30, 2007 (unaudited) and the
  5
period from December 5, 2005 (Date of Inception) to October 31, 2006.

Notes to Financial Statements (unaudited)
  6

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
11

Item 3. Quantitative and Qualitative Disclosures about Market Risk
15

Items 4. Controls and Procedures
16

Part II OTHER INFORMATION

Item 1. Legal Proceedings
17

Item 1A. Risk Factors
17

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
17

Item 3. Defaults upon Senior Securities
17

Item 4. Submission of Matters to a Vote of Security Holders
17

Item 5. Other Information
17

Item 6. Exhibits
18

SIGNATURES

Item 1. FINANCIAL STATEMENTS

CurrencySharesSMEuro Trust
Statements of Financial Condition

April 30,2007
(Unaudited)
October 31,2006

Assets
           
Current Assets  
Euro deposits, interest bearing   $ 1,010,840,000   $ 830,245,000  
Euro deposits, non-interest bearing    22,724    317,767  
Receivable from accrued interest    2,967,365    1,786,451  


Total Assets   $ 1,013,830,089   $ 832,349,218  



Liabilities and Shareholders’ Equity
  
Current Liabilities  
Accrued Sponsor's fee   $ 329,987   $ 234,204  


Total Liabilities    329,987    234,204  



Commitments and Contingent Liabilities (note 7)
  

Redeemable Capital Shares, at redemption value, no par value, 17,000,000 authorized -
  
7,400,000 and 6,500,000 issued and outstanding, respectively    1,013,500,102    832,115,014  
Shareholders’ Equity - Retained Earnings and Cumulative Translation Adjustment    --    --  



Total Liabilities and Shareholders’ Equity
   $ 1,013,830,089   $ 832,349,218  


See Notes to Financial Statements.




2


CurrencySharesSM Euro Trust
Statements of Income and Comprehensive Income
(Unaudited)

Three months
ended April 30,
2007
Six months
ended April 30,
2007
Three months
ended April 30,
2006
December 5, 2005
[Date of Inception]
to April 30, 2006

Income
                   
Interest Income   $ 8,090,245   $ 15,435,913   $ 1,863,408   $ 2,112,495  




Total Income    8,090,245    15,435,913    2,112,495    1,863,408

Expenses
  
Sponsor’s fee    931,829    1,837,050    320,463    368,231  




Total Expenses    931,829    1,837,050    320,463    368,231  
Net Income   $ 7,158,416   $ 13,598,863   $ 1,542,945   $ 1,744,264  





Other Comprehensive Income
  
Currency translation adjustment    203,172    190,165    69,268    82,250  





Total Comprehensive Income
   $ 7,361,588   $ 13,789,028   $ 1,612,213   $ 1,826,514  





Earnings per share
   $ 1.00   $ 1.93   $ 0.53   $ 0.86  
Weighted-average Shares Outstanding    7,193,820    7,048,066    2,918,539    2,038,435  
Cash Dividends per Share   $ 0.98   $ 1.86   $ 0.38   $ 0.59  

See Notes to Financial Statements.



3


CurrencySharesSM Euro Trust
Statements of Changes in Shareholders’ Equity

Six months ended
April 30, 2007
(Unaudited)
December 5, 2005
[Date of Inception]
to October 31, 2006

Retained Earnings Balance, Beginning of Period
    $ --   $ --  
Net Income    13,598,863    9,327,120  
Distributions Paid    (13,118,592 )  (8,165,567 )
Adjustment of redeemable capital shares to redemption value    (480,271 )  (1,161,553 )



Retained Earnings Balance, End of Period
    --    --  



Cumulative Translation Adjustment, Beginning of Period
   $ --   $ --  
Currency translation adjustment    190,165    260,463  
Adjustment of redeemable capital shares to redemption value    (190,165 )  (260,463 )



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


See Notes to Financial Statements.






4


CurrencySharesSM Euro Trust
Statements of Cash Flows
(Unaudited)

Six months ended
April 30,2007
December 5, 2005
[Date of Inception]
to April 30, 2006

Cash flows from operating activities
           
Cash received for accrued income   $ 14,410,592   $ 1,064,973  

Cash paid for expenses
    (1,760,173 )  (203,383 )


Net cash provided by operating activities    12,650,419    861,590  

Cash flows from financing activities
  
Cash received to purchase redeemable shares    190,901,251    554,916,882  

Cash paid to redeem redeemable shares
    (72,370,395 )  (118 )
Cash paid for distributions    (13,118,592 )  (1,198,589 )


Net cash provided by financing activities    105,412,264    553,718,175  

Adjustment to period cash flows due to currency movement
    62,237,274    26,150,929  


Increase in cash    180,299,957    580,730,694  
Cash at beginning of period    830,562,767    118  


Cash at end of period   $ 1,010,862,724   $ 580,730,812  



Reconciliation of net income to net cash provided by operating activities
  

Net income
   $ 13,598,863   $ 1,744,264  
Adjustments to reconcile net income to net cash provided by operating activities  
Increase in receivable from accrued interest    (2,967,365 )  (1,096,918 )
Decrease in prior period receivable from accrued interest    1,786,451    --  
Currency translation adjustment    136,687    41,622  
Increase in accrued sponsor fee    329,987    172,622  
Decrease in prior period accrued sponsor fee    (234,204 )  --  



Net cash provided by operating activities
   $ 12,650,419   $ 861,950  

See Notes to Financial Statements.


5


Notes to Financial Statements
(Unaudited)

1. Organization and Description of the Trust

The CurrencySharesSM Euro Trust (the “Trust”) was formed under the laws of the State of New York on December 5, 2005 when Rydex Specialized Products LLC d/b/a “Rydex Investments” (the “Sponsor”) deposited 100 euro 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 euro plus accrued interest less 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 euro. The Trust’s assets primarily consist of euro 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 only in connection with mid-month creations and redemptions of blocks of 50,000 Shares (“Baskets”). The secondary account is used 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 holders of Shares (“Shareholders”) on a monthly basis.

The accompanying unaudited financial statements were prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions for Form 10-Q. In the opinion of management, all material adjustments, consisting only of normal recurring adjustments, considered necessary for a fair statement of the interim period financial statements have been made. Interim period results are not necessarily indicative of results for a full-year period. These financial statements and the notes thereto should be read in conjunction with the Trust’s financial statements included in the Trust’s Annual Report on Form 10-K filed on January 29, 2007.

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.

6


B. Foreign Currency Translation

The Trustee calculates the Trust’s net asset value (“NAV”) each business day, as described in Note 3. For NAV calculation purposes, Euro Deposits (cash) are translated at the Noon Buying Rate, which is the U.S. Dollar (“USD”)/euro 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 the New York Stock Exchange (“NYSE”) is open for regular trading.

The functional currency of the Trust is the euro 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 euro 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.

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 euro 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 euro 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.

7


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 euro effective on the first business day of the subsequent month. The Trustee will direct that the excess euro 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 April, 2007 an income distribution of $0.35912 per share was paid on May 8, 2007.

3. Euro Deposits

Euro principal deposits are held in a euro-denominated, interest-bearing demand account. For the six months ending April 30, 2007, there were euro principal deposits of 145,000,000 and 55,000,000 euro principal redemptions resulting in an ending euro principal balance of 740,000,000. This equates to 1,010,840,000 USD. For the period from December 5, 2005 (Date of Inception) to October 31, 2006, there were euro principal deposits of 820,000,000 and euro principal redemptions of 170,000,100 resulting in an ending euro principal balance of 650,000,000. This equated to 830,245,000 USD. In addition, net interest associated with creation and redemption activity is held in a euro-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 euro. 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:

8


Six months ended
April 30, 2007
Period from December 5, 2005
[Date of Inception]
to October 31, 2006
Shares
U.S. Dollar
Amount

Shares
U.S. Dollar
Amount

Opening balance      6,500,000   $ 832,115,014    1   $ 118  
Shares issued    1,450,000    190,901,251    8,200,000    1,019,824,365  
Shares redeemed    (550,000 )  (72,370,395 )  (1,700,001 )  (211,476,831 )
Adjustment to period Shares due to currency  
movement and other    --    62,854,232    --    23,767,362  




Ending redemption balance    7,400,000   $ 1,013,500,102    6,500,000   $ 832,115,014  




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 euro held by the Trust (including all unpaid interest accrued through the preceding day) and calculate the value of the euro 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 euro, 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 euro 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 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 $1,000,000 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.

9


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 euro, which creates a concentration risk associated with fluctuations in the price of euro. Accordingly, a decline in the price of euro 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 euro 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 euro by the official sector (central banks, other governmental agencies and related institutions that buy, sell and hold euro as part of their reserve assets) could adversely affect an investment in the Shares.

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.







10


Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Cautionary Statement Regarding Forward-Looking Information and Risk Factors

This report contains forward-looking statements within the meaning of 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. These uncertainties and other factors include, but are not limited to, the following:

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

The discussion and analysis which follows may contain statements 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 Rydex Specialized Products LLC d/b/a Rydex Investments (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.

Trust Overview

The CurrencySharesSM Euro Trust (the “Trust”) is a grantor trust that was formed on December 5, 2005. The Trust issues shares (the “Shares”) in blocks of 50,000 (each, a “Basket”) in exchange for deposits of euro and distributes euro in connection with the redemption of Baskets.

The Trust is a passive investment vehicle. The Trust does not have any officers, directors or employees. The investment objective of the Trust is for the Shares to reflect the price of the euro plus accrued interest, less the expenses of the Trust’s operations. The Trust does not engage in any activities designed to obtain profit from, or ameliorate losses caused by, changes in the price of euro.

The Shares began trading on the New York Stock Exchange (“NYSE”) under the ticker symbol “FXE” on December 12, 2005. Investing in the Shares does not insulate the investor from certain risks, including price volatility.

Definition and Calculation of Net Asset Value

The net asset value (“NAV”) of the Trust is the aggregate value, expressed in U.S. Dollars (“USD”), of the Trust’s assets. To calculate the NAV, The Bank of New York (the “Trustee”) adds to the amount of euro in the Trust at the end of the preceding business day accrued but unpaid interest, euro receivable under pending purchase orders and the value of other Trust assets, and subtracts the accrued but unpaid Sponsor’s fee, euro payable under pending redemption orders and other Trust expenses and liabilities, if any.

11


The NAV is expressed in USD based on the Noon Buying Rate as determined by the Federal Reserve Bank of New York. 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. The Trustee also determines the NAV per Share, which equals the NAV of the Trust divided by the number of outstanding Shares.

The Sponsor publishes the NAV and NAV per Share on the Trust’s website, www.currencyshares.com each day that the NYSE is open for regular trading.

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 as of the Noon Buying Rate versus the corresponding euro (expressed as a multiple of 100 euro – Noon Buying Rate x 100):





12


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 April 30, 2007 was an annual nominal rate of 3.60%. The following chart provides the daily rate paid by the Depository since the Shares began trading on the NYSE:

In exchange for a fee, the Sponsor bears most of the expenses 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 euro from the secondary deposit account to pay the accrued Sponsor’s fee for the previous month and other Trust expenses. When 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). Historical distributions are as follows:




13



FXE Distribution History
Date Value NAV Yield Annualized Yield
4/2/07 $  0.3485 $  133.76 0.26% 3.07%
3/1/07 $  0.2986 $  131.74 0.23% 2.96%
2/1/07 $  0.3255 $  130.22 0.25% 2.94%
1/3/07 $  0.3239 $  131.72 0.25% 2.90%
12/1/06 $  0.2939 $  133.19 0.22% 2.65%
11/1/06 $  0.2874 $  127.72 0.23% 2.61%
10/2/06 $  0.2511 $  127.46 0.20% 2.36%
9/1/06 $  0.2539 $  128.36 0.20% 2.30%
8/1/06 $  0.2366 $  127.79 0.19% 2.15%
7/3/06 $  0.2162 $  127.96 0.17% 2.03%
6/1/06 $  0.2104 $  128.25 0.16% 1.91%
5/1/06 $  0.2066 $  126.08 0.16% 1.97%
4/3/06 $  0.1934 $  121.26 0.16% 1.85%
3/1/06 $  0.1563 $  119.00 0.13% 1.69%
2/1/06 $  0.1734 $  120.93 0.14% 1.67%
1/3/06 $  0.1267 $  119.82 0.11% 1.66%

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, Euro 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 the NYSE is open for regular trading.

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

Results of Operations

The Trust was formed on December 5, 2005, when the Sponsor deposited 100 euro with the Depository in exchange for one Share. The Depository received 15,000,000 euro on behalf of the Trust in exchange for 150,000 Shares on December 8, 2005. Trading in the Shares of the Trust on the NYSE commenced on December 12, 2005. Through April 30, 2007 an additional 9,500,000 Shares had been created in exchange for 950,000,000 euro; in addition to the seed capital of 100 euro, 2,250,000 Shares were redeemed in exchange for 225,000,000 euro.

14


As of April 30, 2007 the number of euro owned by the Trust was 740,000,000, resulting in a value of $1,013,500,102 based on the NAV on April 30, 2007.

Movements in the Price of Euro

The investment objective of the Trust is for the Shares to reflect the price of the euro 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 euro. Each outstanding Share represents a proportional interest in the euro held by the Trust. The following chart provides recent trends on the price of euro. The chart illustrates movements in the price of euro in USD during the period from August 1, 2005 to April 30, 2007 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.

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK



15


Not applicable.

Item 4. CONTROLS AND PROCEDURES

The Trust maintains disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934) designed to ensure that material information relating to the Trust is recorded, processed and disclosed on a timely basis. The Trust’s disclosure controls and procedures are designed by or under the supervision of the Sponsor’s chief executive officer and chief financial officer who exercise oversight over the Trust as the Trust has no officers. The chief executive officer and chief financial officer of the Sponsor have evaluated the effectiveness of the Trust’s disclosure controls and procedures as of April 30, 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 report. There were no changes in the Trust’s internal control over financial reporting that occurred during the Trust’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Trust’s internal control over financial reporting.











16


PART II — OTHER INFORMATION

Item 1. Legal Proceedings

None.

Item 1A. Risk Factors

There have been no material changes from the risk factors disclosed in the “Risk Factors” section of the Trust’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on January 29, 2007.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

(a)     None.

(b)     Not applicable.

(c)     During the quarter ended April 30, 2007, 11 Baskets (550,000 Shares registered pursuant to Section 12 of the Securities Exchange Act of 1934) were redeemed by the Trust, as follows:

Period Total Number of Registered
Shares Redeemed
Average Price Per Share

02/01/2007 - 02/28/2007
250,000 $129.38204
03/01/2007 - 03/31/2007 300,000 $131.74063
04/01/2007 - 04/30/2007 -- --

Item 3. Defaults upon Senior Securities

None.

Item 4. Submission of Matters to a Vote of Security Holders

None.

Item 5. Other Information

None.





17


Item 6. Exhibits

Number Description of Exhibit

31.1 Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

31.2 Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

32.1 Certification of Principal Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

32.2 Certification of Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002











18


SIGNATURES

        Pursuant to the requirements 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.

RYDEX SPECIALIZED PRODUCTS LLC
D/B/A RYDEX INVESTMENTS,
SPONSOR OF CURRENCYSHARESSM EURO TRUST

Date:  June 11, 2007
By:  /s/ Nick Bonos
        Nick Bonos
        Chief Financial Officer
        (principal financial officer)










19


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 Quarterly Report on Form 10-Q for the quarterly period ended April 30, 2007 of CurrencySharesSM Euro 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: June 11, 2007

/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 Quarterly Report on Form 10-Q for the quarterly period ended April 30, 2007 of CurrencySharesSM Euro 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: June 11, 2007

/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 Quarterly Report of CurrencySharesSM Euro Trust (the “Trust”) on Form 10-Q for the period ended April 30, 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: June 11, 2007

/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 Quarterly Report of CurrencySharesSM Euro Trust (the “Trust”) on Form 10-Q for the period ended April 30, 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: June 11, 2007

/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.