N-CSR 1 c12137nvcsr.htm ANNUAL REPORT nvcsr
Table of Contents

 
 
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM N-CSR
CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT
INVESTMENT COMPANIES
Investment Company Act file number 811-07655
Driehaus Mutual Funds
(Exact name of registrant as specified in charter)
25 East Erie Street
Chicago, IL 60611
(Address of principal executive offices) (Zip code)
Mary H. Weiss
Driehaus Capital Management LLC
25 East Erie Street
Chicago, IL 60611
(Name and address of agent for service)
Registrant’s telephone number, including area code: 312-587-3800
Date of fiscal year end: December 31
Date of reporting period: December 31, 2006
Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.
A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 100 F Street, NE, Washington, DC 20549. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.
 
 

 


Item 1. Reports to Stockholders.
Item 2. Code of Ethics
Item 3. Audit Committee Financial Expert
Item 4. Principal Accountant Fees and Services
Item 5. Audit Committee of Listed registrants
Item 6. Schedule of Investments
Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies
Item 8. Portfolio Managers of Closed-End Management Investment Companies
Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers
Item 10. Submission of Matters to a Vote of Security Holders
Item 11. Controls and Procedures
Item 12. Exhibits
SIGNATURES
Certification
Section 906 Certification


Table of Contents

 
Item 1.  Reports to Stockholders.
The Report to Stockholders is attached herewith.

     
Driehaus Mutual Funds

Trustees & Officers

Richard H. Driehaus
President

A.R. Umans
Chairman of the Board

Francis J. Harmon
Trustee

Daniel F. Zemanek
Trustee

Robert H. Gordon
Senior Vice President

Michelle L. Cahoon
Vice President & Treasurer

Janet L. McWilliams
Chief Compliance Officer

Diane J. Drake
Secretary

Kelly C. Dehler
Assistant Secretary

Candace A. Croal
Assistant Secretary

Investment Adviser

Driehaus Capital Management LLC
25 East Erie Street
Chicago, IL 60611

Distributor

Driehaus Securities LLC
25 East Erie Street
Chicago, IL 60611

Administrator

PFPC Inc.
4400 Computer Drive
Westborough, MA 01581

Transfer Agent

PFPC Inc.
101 Sabin Street
Pawtucket, RI 02862

Custodian

JPMorgan Chase Bank, N.A.
3 Chase MetroTech Center
Brooklyn, NY 11245
  Annual Report to Shareholders
December 31, 2006

(Driehaus Mutual Funds Logo)


Driehaus International Discovery Fund
Driehaus Emerging Markets Growth Fund

Distributed by:
Driehaus Securities LLC


This report has been prepared for the shareholders of the Funds and is not an offering to sell or buy any Fund securities. Such offering is only made by the Funds’ prospectus.


Table of Contents


Table of Contents

           
Driehaus International Discovery Fund
       
 
Portfolio Manager’s Letter
    1  
 
Performance Overview
    3  
 
Schedule of Investments
    4  
 
Driehaus Emerging Markets Growth Fund
       
 
Portfolio Managers’ Letter
    11  
 
Performance Overview
    13  
 
Schedule of Investments
    14  
 
Each Fund section includes:
       
 
Statement of Assets and Liabilities
       
 
Statement of Operations
       
 
Statement of Changes in Net Assets
       
 
Financial Highlights
       
 
Notes to Financial Statements
    22  
 
Report of Independent Registered Public Accounting Firm
    29  
 
Interested and Independent Trustees of the Trust
    30  
 
Officers of the Trust
    31  
 
Fund Expense Examples
    32  
 
Shareholder Information
    33  
 
Board Considerations in Connection with the Annual Review of the Investment Advisory Agreement
    34  


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Annual Report to Shareholders
December 31, 2006

  Investment Philosophy:  
 
  The Adviser seeks to achieve superior investment returns primarily by investing in companies outside the U.S. that are currently demonstrating rapid growth in their sales and earnings and which, in its judgement, have the ability to continue or accelerate their growth rates in the future. The Adviser manages the portfolios actively (above average turnover) to insure that the Funds are fully invested, under appropriate market conditions, in companies that meet these criteria. Investors should note that investments in overseas markets can pose more risks than U.S. investments, and the Funds’ share prices are expected to be more volatile than those of U.S.-only funds. In addition, the Funds’ returns will fluctuate with changes in stock market conditions, currency values, interest rates, foreign government regulations, and economic and political conditions in countries in which the Funds invest. These risks are generally greater when investing in emerging markets.  

         Driehaus International Discovery Fund


         Driehaus Emerging Markets Growth Fund



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Driehaus International Discovery Fund — Portfolio Manager’s Letter

Dear Fellow Shareholders,

     The Driehaus International Discovery Fund (“Fund”) was up 16.41% for the year ended December 31, 2006. This performance was below the performance of the Fund’s two major benchmark indices: the Morgan Stanley Capital International All Country (“MSCI AC”) World ex USA Index (which gained 27.14% for the year) and the MSCI AC World ex USA Growth Index (which gained 23.95%).

     Over longer time periods, the Fund has outperformed these indices. For the three year period ended December 31, 2006, the average annualized return for the Fund was 23.34%, which compares favorably with the return of 21.78% for the MSCI AC World ex USA Index and the 19.30% return of the MSCI AC World ex USA Growth Index. Over the past five years, the Fund achieved a return of 21.56% on an average annualized basis (versus the MSCI AC World ex USA Index return of 16.86% and the MSCI AC World ex USA Growth Index return of 14.33%). Since inception of the Fund (December 31, 1998), the average annualized return is 25.93%, which exceeds the returns of both the MSCI AC World ex USA Index (at 8.71%) and the MSCI AC World ex USA Growth Index (at 5.42%) by considerable margins.1

     As the Fund navigated its way over the investment marketplace terrain during 2006, portions of its journey proved to be more challenging than others. As the year progressed, the investment landscape changed from hospitable to hostile and back again. Contributing to the shifting investment terrain over the course of 2006 were a myriad of dynamic economic and financial factors such as fluctuating global energy costs, the direction and level of domestic and international interest rates, corresponding concerns regarding inflationary pressures, the position of the dollar against foreign currencies and the general shifting risk posture of investors around the globe. Correspondingly, the Fund outperformed the relevant indices in the first and fourth quarters of 2006. The middle two quarters, the second and third quarters of 2006, proved more of a challenge as the Fund did not outperform the relevant benchmarks for these time periods.

     Over the course of 2006, a key contributor to performance was the Fund’s allocation and selection to holdings in the energy sector. Holdings such as Petroleum Geo-Services ASA (PGS NO), a technology-focused oilfield service company principally involved in providing worldwide geophysical services, favorably contributed to performance. The company provides an array of geophysical and reservoir services. Included among these services are seismic data acquisition, processing and interpretation, and field evaluation. This holding benefited from increased energy exploration resulting, in part, from heightened energy prices.

     Similarly, allocation and stock selection in the industrial sector also beneficially contributed to the performance of the Fund in 2006. In light of improved demand for its products, as well as from strategic corporate acquisition and sales activities, industrial holding Vallourec SA (VK FP), a worldwide producer of seamless hot rolled steel tubes utilized in a variety of industrial applications, contributed to the Fund’s performance in 2006.

     Additionally, through bottom-up stock selection, we found attractive opportunities that benefited the portfolio in Norway, Singapore and Australia. One of the Australian holdings that contributed to the Fund’s performance in 2006 was Zinifex, Ltd. (ZFX AU), a firm engaged in mineral exploration, production, smelting and refining of zinc, lead and silver metals and other alloys. The performance of the stock benefited from the level of zinc prices in 2006.

     Certain sectors, however, detracted from annual performance of the Fund. Two sectors wherein relative allocation and stock selection negatively influenced the performance of the Fund were the consumer discretionary and the financial sectors. Additionally, our investment focus did not lead us to find many appropriate investment opportunities in the United Kingdom, despite the favorable contribution to return achieved by U.K. stocks during 2006.

     Within the consumer discretionary sector, Point, Inc. (2685 JP), was an example of a holding that detracted from performance in 2006. Point, Inc. is mainly engaged in the sale of casual clothing for younger men and women in Asia. The company operates through two divisions: its sales division sells casual clothing for men and women under a variety of brand names and its distribution division is involved in the inspection, storage and distribution of the firm’s products. Deteriorating momentum, along with a flattening of earnings estimates, contributed to the weaker performance of this stock.

1


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     Kenedix, Inc. (4321 JP), a Japan-based real estate services company that invests in office, residential and commercial buildings, illustrates the point that the 2006 market provided some tricky ground for investors in the Japanese market. This point was also reinforced by Urban Corp. (8868 JP), a diversified Japanese real estate company that engages in land purchases, development, building management and brokerage for commercial and residential use. Based on attribution analysis of the MSCI AC ex USA Growth Index, Japan was one of a handful of countries that did not reflect a positive contribution level to return. Due to the investment challenge posed by Japan, the Fund’s weighting in this country was reduced over the course of the year.

     We have continued to add names with good earnings potential in Europe and increased our weighting in Latin America. As we move into the new year, the Fund reflects increased exposure to such markets as Denmark, Spain, Mexico and Brazil relative to exposures from the prior year. Further, we will keep a watchful eye on developments associated with Asia — particularly as they pertain to potential rebounding opportunities in Japan.

     During the course of 2006, Driehaus Capital Management LLC added two analysts to the international team supporting the Fund. Jeff Kilkenny joined the firm as a senior analyst with coverage responsibility for Europe. Chad Cleaver joined the international team as a senior analyst with coverage responsibility for Canada, Australia, New Zealand, and most of Southeast Asia. Previously, Chad was a senior analyst on the firm’s domestic small cap strategy and has extensive experience researching the basic materials, energy and industrials sectors. One international market analyst who supported the Fund left the Firm during 2006.

     We at Driehaus Capital Management LLC appreciate your commitment to the Driehaus International Discovery Fund. We remain committed to the Driehaus core growth investment philosophy which we believe is a rewarding strategy over the long term.

Sincerely,

(LYNETTE SCHROEDER SIG)

Lynette Schroeder
Portfolio Manager

1 During these periods, the Fund’s returns reflect fee waivers and/or reimbursements without which performance would have been lower.

Performance is historical and does not represent future results.

Regional Weightings*

         
Western Europe 
    48.3%  
Japan 
    17.8%  
Asia/ Far East Ex-Japan 
    17.8%  
South America 
    5.4%  
North America 
    4.9%  
Eastern European 
    0.8%  

Top Ten Holdings*

         
America Movil SA de CV — L ADR 
    2.2%  
Topdanmark AS 
    2.2%  
Zinifex, Ltd.  
    2.1%  
Aker Kvaerner ASA 
    2.0%  
Acergy SA 
    2.0%  
Piraeus Bank SA 
    2.0%  
Cosco Corp., Ltd.  
    2.0%  
Rogers Communications, Inc. — B 
    2.0%  
United Internet AG 
    1.9%  
KCI Konecranes OYJ 
    1.9%  

All percentages are stated as a percent of net assets at December 31, 2006.

2


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Driehaus International Discovery Fund
Performance Overview (unaudited)

      The performance summarized below is historical and does not represent future results. Investment returns and principal value vary, and you may have a gain or loss when you sell shares. Performance data presented measures the change in the value of an investment in the Fund, assuming reinvestment of all dividends and capital gains. Average annual total return reflects annualized change.

     The table does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. The graph compares the results of a $10,000 investment in the Fund since December 31, 1998 (the date of the Fund’s inception), with all dividends and capital gains reinvested, with the indicated indices (and dividends reinvested) for the same period.

                                     

Since Inception
  Average Annual Total Returns as of 12/31/06 1 Year 3 Years 5 Years (12/31/98 - 12/31/06)

Driehaus International Discovery Fund (DRIDX)1
    16.41%       23.34%       21.56%       25.93%      
MSCI AC World ex USA Index2
    27.14%       21.78%       16.86%       8.71%      
MSCI AC World ex USA Growth Index3
    23.95%       19.30%       14.33%       5.42%      

You cannot invest directly in any of these indices.

(PERFORMANCE GRAPH)


1  The returns for the periods prior to July 1, 2003, reflect fee waivers and/or reimbursements without which performance would have been lower.
 
2  The Morgan Stanley Capital International All Country World ex USA Index (MSCI AC World ex USA Index) is a market capitalization-weighted index designed to measure equity market performance in 47 global developed and emerging markets, excluding the U.S. Data is in U.S. dollars. Source: Morgan Stanley Capital International Inc.
 
3  The Morgan Stanley Capital International All Country World ex USA Growth Index (MSCI AC World ex USA Growth Index) is a subset of the MSCI AC World ex USA Index and is composed only of the MSCI AC World ex USA Index stocks which are categorized as growth stocks. Data is in U.S. dollars. Source: Morgan Stanley Capital International Inc.

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Driehaus International Discovery Fund
Schedule of Investments
December 31, 2006

                     
Number Market
of Value
Shares (Note A)

EQUITY SECURITIES — 94.5%

EUROPE — 49.1%
               
 
Germany — 7.2%
               
   
Fresenius Medical Care AG & Co. KGaA
    42,498     $ 5,664,343  
   
Fuchs Petrolub AG (Pref.)
    41,977       3,213,868  
   
Hugo Boss AG (Pref.)
    128,006       6,576,455  
   
Kontron AG
    352,715       5,121,596  
   
MPC Muenchmeyer Petersen Capital AG
    34,645       3,055,419  
   
Software AG
    128,214       10,110,889  
   
United Internet AG
    751,581       12,431,272  
             
 
              46,173,842  
             
 
 
United Kingdom — 5.3%
               
   
Carphone Warehouse Group PLC
    1,620,497       9,962,919  
   
Sage Group PLC
    2,081,703       11,045,789  
   
Tullow Oil PLC
    1,066,709       8,312,616  
   
Venture Production PLC**
    257,034       4,443,856  
             
 
              33,765,180  
             
 
 
Norway — 5.3%
               
   
Aker Kvaerner ASA
    104,720       13,066,487  
   
Aker Yards AS
    88,049       6,820,578  
   
Petroleum Geo-Services ASA**
    286,227       6,725,086  
   
TGS Nopec Geophysical Co. ASA**
    340,500       7,044,601  
             
 
              33,656,752  
             
 
 
Denmark — 4.8%
               
   
Novo Nordisk AS — B
    80,300       6,688,350  
   
Sydbank AS
    217,400       10,391,234  
   
Topdanmark AS**
    83,350       13,781,493  
             
 
              30,861,077  
             
 
 
Spain — 4.8%
               
   
Banco de Sabadell SA
    160,308       7,175,823  
   
Grifols SA**
    618,261       8,242,936  
   
Grupo Catalana Occidente, SA
    97,057       3,516,883  
   
Inditex, SA
    182,143       9,812,231  
   
Mecalux, SA
    49,040       1,988,012  
             
 
              30,735,885  
             
 
 
France — 4.0%
               
   
Groupe Steria SCA
    82,148       4,928,554  
   
Neopost SA
    52,101       6,544,004  
   
Nexity SA
    47,608       3,450,174  
   
Vallourec SA
    37,495       10,903,767  
             
 
              25,826,499  
             
 
 
Finland — 3.8%
               
   
KCI Konecranes OYJ
    421,843       12,417,793  
   
Wartsila Corp. OYJ — B
    213,984       11,527,539  
             
 
              23,945,332  
             
 
 
Sweden — 2.9%
               
   
Alfa Laval AB
    247,130       11,154,503  
   
Axis Communications AB
    132,600       1,777,116  
   
Nobia AB
    153,080       5,892,036  
             
 
              18,823,655  
             
 
 
Ireland — 2.7%
               
   
Bank of Ireland
    450,831       10,414,550  
   
C&C Group PLC
    398,134       7,068,712  
             
 
              17,483,262  
             
 
 
Luxembourg — 2.0%
               
   
Acergy SA**
    660,291       12,707,679  
             
 
 
Greece — 2.0%
               
   
Piraeus Bank SA
    394,021       12,701,462  
             
 
 
Belgium — 1.6%
               
   
Colruyt SA
    32,739       6,992,502  
   
EVS Broadcast Equipment SA
    51,503       2,977,799  
             
 
              9,970,301  
             
 
 
Austria — 1.1%
               
   
Andritz AG
    33,626       7,292,920  
             
 
 
Poland — 0.8%
               
   
TVN SA**
    618,560       5,305,047  
             
 
 
Italy — 0.8%
               
   
Esprinet SpA
    257,089       4,859,764  
             
 
   
Total EUROPE
            314,108,657  
             
 
FAR EAST — 35.1%
               
 
Japan — 17.8%
               
   
Disco Corp. 
    64,200       4,515,390  
   
Fujimi, Inc. 
    127,500       3,653,418  
   
Kenedix, Inc. 
    2,099       9,471,560  
   
Makita Corp. 
    112,900       3,462,754  
   
Matsuda Sangyo Co., Ltd. 
    155,800       3,305,701  
   
Micronics Japan Co., Ltd. 
    39,800       1,471,535  
   
Nihon Kohden Corp. 
    327,800       7,492,257  
   
Nishi-Nippon City Bank, Ltd. 
    1,638,000       7,047,233  
   
Nissin Kogyo Co., Ltd. 
    256,400       6,592,866  
   
Shimadzu Corp. 
    722,000       6,364,253  
   
Star Micronics Co., Ltd. 
    276,000       5,508,172  
   
Sumco Corp. 
    83,200       7,033,251  
   
Sumitomo Titanium Corp. 
    27,600       3,086,895  
   
Suruga Bank, Ltd. 
    710,000       8,794,084  
   
Taiyo Nippon Sanso Corp. 
    958,000       8,629,688  
   
Tocalo Co., Ltd. 
    77,500       2,884,963  
   
Tokai Carbon Co., Ltd. 
    904,000       6,426,486  
   
Tokai Rika Co., Ltd. 
    371,000       9,446,074  
   
Tokyo Electron, Ltd. 
    41,500       3,271,039  
   
Urban Corp. 
    372,300       5,649,963  
             
 
              114,107,582  
             
 
 
Notes to Financial Statements are an integral part of this Schedule.

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Driehaus International Discovery Fund
Schedule of Investments
December 31, 2006

 
                     
Number Market
of Value
Shares (Note A)

 
Singapore — 7.0%
               
   
Capitaland, Ltd. 
    2,979,000     $ 12,042,249  
   
Cosco Corp., Ltd. 
    8,403,000       12,601,076  
   
Keppel Corp., Ltd. 
    1,024,000       11,750,546  
   
Singapore Exchange, Ltd. 
    2,317,000       8,610,856  
             
 
              45,004,727  
             
 
 
Australia — 4.6%
               
   
Jubilee Mines NL
    540,053       6,718,318  
   
WorleyParsons, Ltd. 
    562,437       9,447,425  
   
Zinifex, Ltd. 
    892,379       13,235,614  
             
 
              29,401,357  
             
 
 
China — 3.0%
               
   
AAC Acoustic Technology Holdings, Inc.**
    4,792,000       4,546,618  
   
Dongfang Electrical Machinery Co., Ltd. — H
    1,324,500       3,541,854  
   
Hunan Non-Ferrous Metal Corp., Ltd. — H**
    7,475,000       4,324,531  
   
Parkson Retail Group Ltd. 
    1,371,500       6,788,469  
             
 
              19,201,472  
             
 
 
Taiwan — 1.3%
               
   
Catcher Technology Co., Ltd. 
    429,509       4,198,209  
   
Simplo Technology Co., Ltd. 
    1,077,000       3,900,138  
             
 
              8,098,347  
             
 
 
India — 0.8%
               
   
Dr. Reddy’s Laboratories Ltd. — ADR
    294,000       5,350,800  
             
 
 
South Korea — 0.6%
               
   
MegaStudy Co., Ltd.**
    23,479       3,466,308  
             
 
   
Total FAR EAST
            224,630,593  
             
 
SOUTH AMERICA — 5.4%
               
 
Brazil — 5.2%
               
   
Cosan SA Industria e Comercio**
    255,500       5,345,589  
   
Localiza Rent-a-Car SA
    302,570       9,099,051  
   
Lojas Renner SA
    619,700       8,904,652  
   
Net Servicos de Comunicacao SA (Pref.)**
    872,900       9,915,883  
             
 
              33,265,175  
             
 
 
Chile — 0.2%
               
   
Masisa S.A. 
    7,105,595       1,421,786  
             
 
   
Total SOUTH AMERICA
            34,686,961  
             
 
NORTH AMERICA — 4.9%
               
 
Canada — 2.7%
               
   
Gildan Activewear, Inc.**
    98,568       4,605,728  
   
Rogers Communications, Inc. — B
    421,134       12,531,278  
             
 
              17,137,006  
             
 
 
Mexico — 2.2%
               
   
America Movil SA de CV — L — ADR
    308,881       13,967,599  
             
 
   
Total NORTH AMERICA
            31,104,605  
             
 
   
Total EQUITY SECURITIES (Cost $480,381,984)
            604,530,816  
             
 

EQUITY CERTIFICATES — 0.5%

FAR EAST — 0.5%
               
 
India — 0.5%
               
   
Bharat Heavy Electricals, Ltd.†
    63,513       3,306,652  
             
 
   
Total EQUITY CERTIFICATES (Cost $1,282,477)
            3,306,652  
             
 

 
TOTAL INVESTMENTS (COST $481,664,461)
     95.0 %   $ 607,837,468  
 
Other Assets in Excess of Liabilities
    5.0 %     31,913,805  
     
     
 
Net Assets
    100.0 %   $ 639,751,273  

The federal income tax basis and unrealized appreciation (depreciation) for all investments is as follows:
Basis:   $ 486,610,768  
     
 
Gross Appreciation   $ 124,532,896  
Gross Depreciation     (3,306,196 )
     
 
Net Appreciation   $ 121,226,700  
     
 

**  Non-income producing security
 
  †  Restricted security — Investments in securities not registered under the Securities Act of 1933, excluding 144A securities. At December 31, 2006, the value of these restricted securities amounted to $3,306,652 or 0.5% of net assets.

Additional information on the restricted security is as follows:

                 
Acquisition Acquisition
Security Date(s) Cost

Bharat Heavy Electricals, Ltd. 
    05/25/05 to 06/07/05     $ 1,282,477  
ADR — American Depository Receipt
 
Notes to Financial Statements are an integral part of this Schedule.

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Driehaus International Discovery Fund
Schedule of Investments
December 31, 2006

         
Percent of
Industry Net Assets


Automobiles 
    3.9%  
Banking 
    8.8%  
Basic Industries/ Multi-Industry 
    1.9%  
Broadcasting & Publishing Services 
    4.3%  
Business & Public Services 
    3.2%  
Chemicals 
    1.9%  
Construction 
    1.1%  
Capital Goods/ Multi-Industry 
    2.1%  
Clothing 
    0.7%  
Consumer Non-Durables/Multi-Industry 
    2.0%  
Consumer Services/Multi-Industry 
    0.5%  
Drugs 
    0.8%  
Electrical & Electronics 
    2.1%  
Electronic Components 
    5.9%  
Energy Equipment 
    3.0%  
Energy/ Multi-Industry 
    2.6%  
Energy Sources 
    2.0%  
Financial Services 
    2.4%  
Food & Household 
    3.4%  
Forest Products 
    0.2%  
Gold Mining 
    1.1%  
Health Care 
    2.3%  
Health Care/ Multi-Industry 
    0.9%  
Industrial Components 
    0.6%  
Industrial Machinery 
    0.5%  
Insurance 
    2.7%  
Machinery 
    9.3%  
Merchandising 
    2.5%  
Metals — Nonferrous 
    3.7%  
Miscellaneous Materials 
    2.7%  
Real Estate 
    3.3%  
Retailing — Goods 
    1.1%  
Technology/ Multi-Industry 
    5.1%  
Telecommunications 
    1.6%  
Telephone Utilities 
    2.2%  
Textiles & Apparel 
    2.6%  
Other Assets in Excess of Liabilities 
    5.0%  
     
 
TOTAL 
    100.0%  
     
 
 
Notes to Financial Statements are an integral part of this Schedule.

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Driehaus International Discovery Fund
Statement of Assets and Liabilities
December 31, 2006

               
ASSETS:
       
 
Investments, at market value (Cost $481,664,461)
  $ 607,837,468  
 
Foreign currency (Cost $3,289,452)
    3,366,329  
 
Cash
    33,916,258  
 
Receivables:
       
   
Dividends
    258,563  
   
Interest
    73,026  
   
Investment securities sold
    4,534,795  
   
Fund shares sold
    1,038,259  
 
Prepaid expenses and other assets
    44,049  
     
 

     
TOTAL ASSETS
    651,068,747  
     
 

LIABILITIES:
       
 
Payables:
       
   
Investment securities purchased
    7,760,836  
   
Fund shares redeemed
    2,497,537  
   
Net unrealized depreciation on unsettled foreign currency forward contracts from transaction hedges
    6,908  
   
Due to affiliates
    797,532  
   
Foreign taxes
    11,253  
 
Accrued expenses
    243,408  
     
 

     
TOTAL LIABILITIES
    11,317,474  
     
 

NET ASSETS
  $ 639,751,273  
     
 
SHARES OUTSTANDING (Unlimited shares authorized, no par value)
    16,256,664  
     
 
NET ASSET VALUE
  $ 39.35  
     
 

NET ASSETS CONSISTED OF THE FOLLOWING AT DECEMBER 31, 2006:
       
 
Paid-in capital
  $ 636,452,371  
 
Accumulated net investment loss
    (3,072,458 )
 
Accumulated net realized loss
    (119,880,915 )
 
Unrealized net foreign exchange gain
    79,268  
 
Unrealized net appreciation on investments
    126,173,007  
     
 
     
NET ASSETS
  $ 639,751,273  
     
 

 
Notes to Financial Statements are an integral part of this Statement.

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Driehaus International Discovery Fund
Statement of Operations
For the year ended December 31, 2006

                 
INVESTMENT LOSS:
       
 
Income:
       
   
Dividends (Net of non-reclaimable taxes of $595,035)
  $ 7,205,072  
   
Interest
    998,126  
     
 

     
Total income
    8,203,198  
     
 

 
Expenses:
       
   
Investment advisory fee
    10,421,095  
   
Administration fee
    595,260  
   
Professional fees
    250,058  
   
Federal and state registration fees
    82,741  
   
Custodian fees
    350,147  
   
Transfer agent fees
    103,231  
   
Trustees’ fees
    74,000  
   
Miscellaneous
    290,131  
     
 
   
Total expenses
    12,166,663  
     
 

   
Fees paid indirectly
    (442,705 )
     
 
     
Net expenses
    11,723,958  
     
 

       
Net investment loss
    (3,520,760 )
     
 

NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND FOREIGN CURRENCY TRANSACTIONS:        
   
Net realized gain from security transactions
    122,708,161  
   
Net realized foreign exchange loss
    (270,307 )
   
Net change in unrealized foreign exchange gain
    16,739  
   
Net change in unrealized appreciation on investments
    (29,445,645 )
     
 

     
Net realized and unrealized gain on investments and foreign currency transactions
    93,008,948  
     
 

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS
  $ 89,488,188  
     
 

 
Notes to Financial Statements are an integral part of this Statement.

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Driehaus International Discovery Fund
Statement of Changes in Net Assets

                       
For the year For the year
ended ended
December 31, 2006 December 31, 2005

INCREASE IN NET ASSETS:
               
 
Operations:
               
   
Net investment loss
  $ (3,520,760 )   $ (67,474 )
   
Net realized gain on investments and foreign currency transactions
    122,437,854       63,029,701  
   
Net change in unrealized gain (loss) on investments and foreign currency transactions
    (29,428,906 )     96,185,768  
     
     
 

     
Net increase in net assets resulting from operations
    89,488,188       159,147,995  
     
     
 

 
Distributions to shareholders:
               
   
Net investment income
          (446,477 )
   
Capital gains
    (114,767,007 )     (54,300,819 )
     
     
 
     
Total distributions to shareholders
    (114,767,007 )     (54,747,296 )
     
     
 

 
Capital share transactions:
               
   
Proceeds from shares sold
    295,312,959       212,627,542  
   
Reinvestment of distributions
    112,057,937       53,670,719  
   
Cost of shares redeemed
    (345,776,915 )     (112,461,237 )
   
Redemption fees
    186,950       25,182  
     
     
 
     
Net increase in net assets derived from capital share transactions
    61,780,931       153,862,206  
     
     
 
     
Total increase in net assets
    36,502,112       258,262,905  
     
     
 

NET ASSETS:
               

 
Beginning of period
  $ 603,249,161     $ 344,986,256  
     
     
 
 
End of period (Including accumulated net investment loss of $3,072,458 and $292,339, respectively )
  $ 639,751,273     $ 603,249,161  
     
     
 

 
Capital share transactions are as follows:
               
   
Shares issued
    6,664,745       5,567,641  
   
Shares reinvested
    2,894,854       1,341,768  
   
Shares redeemed
    (7,944,732 )     (3,162,244 )
     
     
 
     
Net increase from capital share transactions
    1,614,867       3,747,165  
     
     
 

 
Notes to Financial Statements are an integral part of this Statement.

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Driehaus International Discovery Fund
Financial Highlights

                                             
For the year For the year For the year For the year For the year
ended ended ended ended ended
December 31, December 31, December 31, December 31, December 31,
2006 2005 2004 2003 2002

Net asset value, beginning of period
  $ 41.20     $ 31.67     $ 29.28     $ 18.03     $ 20.70  
     
     
     
     
     
 
 
INCOME (LOSS) FROM
INVESTMENT OPERATIONS:
                                       
 
Net investment income (loss)
    (0.21 )     0.02       (0.02 )     (0.15 )     (0.12 )
 
Net realized and unrealized gain (loss) on investments and foreign currency transactions
    6.82       13.78       3.45       11.40       (2.57 )
     
     
     
     
     
 
   
Total income (loss) from investment operations
    6.61       13.80       3.43       11.25       (2.69 )
     
     
     
     
     
 
 
LESS DISTRIBUTIONS:
                                       
 
Dividends from net investment income
          (0.04 )                  
 
Distributions from capital gains
    (8.47 )     (4.23 )     (1.05 )            
     
     
     
     
     
 
   
Total distributions
    (8.47 )     (4.27 )     (1.05 )            
     
     
     
     
     
 
Redemption fees added to paid-in capital
    0.01       0.00  ~     0.01       0.00  ~     0.02  
     
     
     
     
     
 
Net asset value, end of period
  $ 39.35     $ 41.20     $ 31.67     $ 29.28     $ 18.03  
     
     
     
     
     
 
   
Total Return
    16.41 %     43.97 %     11.95 %     62.40 %     (12.90 )%
RATIOS/ SUPPLEMENTAL DATA
                                       
 
Net assets, end of period (in 000’s)
  $ 639,751     $ 603,249     $ 344,986     $ 260,619     $ 68,113  
 
Ratio of expenses before fees paid indirectly to average net assets
    1.74  %     1.82  %     1.94  %     2.02  %†     2.26  %†
 
Ratio of net expenses to average net assets
    1.68  %#     1.77  %#     1.70  %#     2.02  %†#     1.86  %†#
 
Ratio of net investment loss
to average net assets
    (0.50 )%#     (0.02 )%#     (0.05 )%#     (1.11 )%†#     (0.71 )%†#
 
Portfolio turnover
    216.29  %     180.42  %     518.81  %     515.76  %     405.69  %

 ~  Amount represents less than $0.01 per share
 
 †  The Adviser agreed to absorb other operating expenses to the extent necessary to ensure that the total Fund operating expenses (other than interest, taxes, brokerage commissions and other portfolio transaction expenses, capital expenditures, and extraordinary expenses) would not exceed the Fund’s operating expense cap for the first fifty-four months of its operations. For the period June 1, 1999 through June 30, 2002, the operating expense cap was 2.40% of average net assets. For the period July 1, 2002 through June 30, 2003, the Fund was reimbursed for expenses exceeding the 2.40% expense cap after reduction of amounts received through commission recapture programs that were applied to Fund expenses.
 
Such ratios are net of fees paid indirectly (see Note B in the Notes to Financial Statements).

Notes to Financial Statements are an integral part of this Schedule.

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Driehaus Emerging Markets Growth Fund — Portfolio Managers’ Letter

Dear Fellow Shareholders,

     The Driehaus Emerging Markets Growth Fund (“Fund”) was up 41.22% for the year ended December 31, 2006. This substantially exceeded the performance of the Fund’s two major benchmark indices: the Morgan Stanley Capital International (“MSCI”) Emerging Markets Index which gained 32.59% and the MSCI Emerging Markets Growth Index which gained 32.73% for the year.

     Fund performance, over longer time periods, also reflected outperformance relative to the indices. For the three years ended December 31, 2006, the average annualized return for the Fund was 34.55% (versus a return of 30.94% for the MSCI Emerging Markets Index and 29.49% for the MSCI Emerging Markets Growth Index). For the five years ended December 31, 2006, the average annualized return associated with the Fund was 30.08% (versus 26.96% for the MSCI Emerging Markets Index and 24.59% for the MSCI Emerging Markets Growth Index). Since inception of the Fund on December 31, 1997, the average annual total return is 20.29% (versus 12.01% for the MSCI Emerging Markets Index and 11.22% for the MSCI Emerging Markets Growth Index).1

     Over the course of 2006, ongoing macroeconomic and political concerns contributed to a heightened degree of marketplace uncertainty. Specifically, the increase in interest rates by major central banks raised the potential for global economic deceleration. This development caused investors to re-evaluate expectations for corporate earnings growth and resulted in a meaningful market correction in the first half of the year. In addition, year-end events in Thailand served as an important reminder of the geopolitical risks in developing countries. Despite these broader concerns, corporate fundamentals within the emerging markets were favorable and provided us the environment in which to find ample attractive investment opportunities.

     Allocation and stock selection of companies in China, Brazil, Russia and Mexico were leading contributors to the Fund’s performance in 2006. At the individual security level, Zijin Mining Group Co., Ltd. (2899 HK) — a mining conglomerate in China primarily engaged in the exploration, production and refining of gold and non-ferrous metals — contributed to the Fund’s 2006 performance as the company’s production increased concurrently with a rise in the price of gold. Another contributor to performance was Localiza Rent-a-Car SA (RENT3 BZ), a Brazilian company that operates and franchises car and fleet rental businesses in Brazil and seven other countries in Latin America.

     Other holdings that contributed to the performance of the Fund included China Mengniu Dairy Co., Ltd. (2319 HK), one of China’s leading dairy product manufacturers. This holding benefited as rising wages enabled the Chinese consumer to continue increasing food-oriented discretionary spending. Additionally, Guangzhou R&F Properties Co., Ltd. (2777 HK) contributed to the return of the Fund over the course of the year. This company is engaged in the development and sale of residential properties in several key metropolitan areas within China. The firm also develops commercial properties, such as shopping malls and office buildings. Based on strong pre-orders for residential properties and an expanded development network, this holding was a key contributor to performance.

     Despite a fairly strong investment pool from which to select stocks, not all holdings contributed to performance. Phicom Corp. (039230 KS), a South Korean manufacturer and supplier of semiconductor testing devices and reliability measurement systems, was among holdings that negatively influenced performance of the Fund during 2006. Sentiment turned negative for this holding in mid-2006, as technical issues arose with a key customer and an unfavorable court ruling opened the door to greater competition. Additionally, another holding in the semiconductor arena, Chartered Semiconductor Manufacturing, Ltd. (CSM SP) — a Singapore-based provider of contract manufacturing services focused on advanced electronic applications — experienced price weakness due to disappointing earnings results attributable to competitive pressures and lackluster demand for electronic game consoles.

     Although the broader investment environment remains constructive, we recognize that tighter monetary conditions in certain countries could pressure global economic growth and disproportionately impact emerging markets equities. Furthermore, given the recent strength of the emerging markets asset class, we are slightly more cautious on the category’s near-term return potential. With that in mind, our disciplined investment process continues to identify high quality opportunities throughout the developing world. In terms of current positioning, the Fund is biased toward domestic consumption and regional infrastructure investments. Rising

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incomes and the appreciation of emerging markets currencies support the thesis regarding these local opportunities. For example, we remain positively geared to specific emerging markets homebuilders due to compelling secular growth trends.

     As for organizational changes, Dan Rea re-joined Driehaus Capital Management LLC in April 2006. In his role as Assistant Portfolio Manager for the Fund, he assists in supervising a team of analysts responsible for evaluating new and existing holdings. Dan also functions as the Director of Research at Driehaus Capital Management LLC. In addition, Chad Cleaver joined the international team as a senior analyst with coverage responsibility for Canada, Australia, New Zealand and most of Southeast Asia. Previously, Chad was a senior analyst on the firm’s domestic small cap strategy and has extensive experience researching the basic materials, energy and industrials sectors.

     Finally, although we are pleased with the Fund’s performance in 2006, the entire team remains committed to creating value through our bottom-up, aggressive growth investment philosophy. As always, we thank you for your continued interest in the Driehaus Emerging Markets Growth Fund.

Sincerely,

         
-s- Emery R. Brewer
 
-s- Daniel M. Rea
 
Emery R. Brewer
  Daniel M. Rea
Portfolio Manager
  Assistant Portfolio Manager

1  During these periods, the Fund’s returns reflect fee waivers and/or reimbursements without which performance would have been lower.

Performance is historical and does not represent future results.

Regional Weightings*

         
Asia/ Far East Ex-Japan 
    48.8%  
South America 
    14.7%  
Eastern European 
    9.9%  
Africa 
    9.0%  
North America 
    8.1%  
Western Europe 
    4.5%  

Top Ten Holdings*

         
Petroleo Brasileiro 
    2.4%  
Raiffeisen International Bank Holding AG 
    2.2%  
Net Servicos de Comunicacao SA (Pref.) 
    2.2%  
Fomento Economico Mexicano SA de CV — ADR 
    1.9%  
America Movil SA de CV — L — ADR 
    1.8%  
Shinsegae Co., Ltd. 
    1.8%  
Localiza Rent — a — Car SA 
    1.7%  
Shinhan Financial Group Co., Ltd. 
    1.7%  
NovaTek OAO — GDR 
    1.7%  
Shin Kong Financial Holding Co., Ltd. 
    1.7%  

All percentages are stated as a percent of net assets at December 31, 2006.

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Driehaus Emerging Markets Growth Fund
Performance Overview (unaudited)

      The performance summarized below is historical and does not represent future results. Investment returns and principal value vary, and you may have a gain or loss when you sell shares. Performance data presented measures the change in the value of an investment in the Fund, assuming reinvestment of all dividends and capital gains. Average annual total return reflects annualized change.

     The table does not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. The graph compares the results of a $10,000 investment in the Fund since December 31, 1997 (the date of the Fund’s inception), with all dividends and capital gains reinvested, with the indicated indices (and dividends reinvested) for the same period.

                                     

Since Inception
  Average Annual Total Returns as of 12/31/06 1 Year 3 Years 5 Years (12/31/97 - 12/31/06)

Driehaus Emerging Markets Growth Fund (DREGX)1
    41.22%       34.55%       30.08%       20.29%      
MSCI Emerging Markets Index2
    32.59%       30.94%       26.96%       12.01%      
MSCI Emerging Markets Growth Index3
    32.73%       29.49%       24.59%       11.22%      

You cannot invest directly in any of these indices.

(PERFORMANCE GRAPH)


1  The returns for the periods prior to July 1, 2003, reflect fee waivers and/or reimbursements without which performance would have been lower.
 
2  The Morgan Stanley Capital International Emerging Markets Index (MSCI Emerging Markets Index) is a market capitalization-weighted index designed to measure equity market performance in 25 global emerging markets. Data is in U.S. dollars. Source: Morgan Stanley Capital International Inc.
 
3  The Morgan Stanley Capital International Emerging Markets Growth Index (MSCI Emerging Markets Growth Index) is a subset of the MSCI Emerging Markets Index and includes only the MSCI Emerging Markets Index stocks which are categorized as growth stocks. Data is in U.S. dollars. Source: Morgan Stanley Capital International Inc.

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Driehaus Emerging Markets Growth Fund
Schedule of Investments
December 31, 2006

                     
Market
Number Value
of Shares (Note A)

EQUITY SECURITIES — 90.4%

FAR EAST — 44.2%
               
 
South Korea — 12.8%
               
   
Daewoo Shipbuilding & Marine Engineering Co., Ltd. 
    187,080     $ 5,873,910  
   
Daishin Securities Co., Ltd. 
    305,200       7,712,043  
   
Dong-A Pharmaceutical Co., Ltd. 
    130,872       12,228,785  
   
Hynix Semiconductor, Inc.** 
    184,500       7,231,210  
   
Hyundai Engineering & Construction Co., Ltd.** 
    183,199       11,228,326  
   
Korea Zinc Co., Ltd. 
    75,128       7,973,262  
   
MegaStudy Co., Ltd.** 
    41,277       6,093,905  
   
NHN Corp. 
    87,091       10,685,035  
   
Samsung Electronics Co., Ltd. 
    7,444       4,906,636  
   
Shinhan Financial Group Co., Ltd. 
    265,940       13,582,957  
   
Shinsegae Co., Ltd. 
    22,149       13,813,355  
             
 
              101,329,424  
             
 
 
China — 11.4%
               
   
China Medical Technologies, Inc. — ADR**
    230,700       6,245,049  
   
China Mengniu Dairy Co., Ltd. 
    3,089,000       8,121,318  
   
Comba Telecom Systems Holdings, Ltd. 
    13,918,000       5,922,705  
   
Focus Media Holding, Ltd. — ADR** 
    123,053       8,169,489  
   
Golden Eagle Retail Group, Ltd. 
    7,926,000       7,041,212  
   
Guangzhou R&F Properties Co., Ltd. 
    4,365,900       9,429,711  
   
Hopson Development Holdings, Ltd. 
    1,294,000       3,659,926  
   
Hunan Non-Ferrous Metal Corp., Ltd. — H** 
    17,496,000       10,122,006  
   
Lee & Man Paper Manufacturing, Ltd. 
    3,094,000       7,597,470  
   
Maanshan Iron and Steel Co., Ltd. — H 
    10,746,000       5,899,158  
   
Suntech Power Holdings Co., Ltd. — ADR** 
    177,800       6,046,978  
   
Zijin Mining Group Co., Ltd. 
    16,753,600       11,695,621  
             
 
              89,950,643  
             
 
 
Taiwan — 10.4%
               
   
Asustek Computer, Inc. 
    3,871,500       10,598,060  
   
China Steel Corp. 
    7,061,000       7,497,640  
   
Chong Hong Construction Co., Ltd. 
    2,588,523       7,006,528  
   
Delta Electronics, Inc. 
    2,894,650       9,327,551  
   
Gemtek Technology Corp. 
    4,267,000       9,284,343  
   
MediaTek Inc. 
    352,000       3,640,448  
   
Phison Electronics Corp. 
    681,351       6,116,163  
   
Realtek Semiconductor Corp. 
    4,858,000       8,363,781  
   
Shin Kong Financial Holding Co., Ltd. 
    12,205,755       13,147,829  
   
Yageo Corp.** 
    15,213,000       7,096,443  
             
 
              82,078,786  
             
 
 
Indonesia — 2.7%
               
   
PT Astra International Tbk 
    3,205,000       5,594,985  
   
PT Bakrie Telecom Tbk** 
    277,122,000       7,549,329  
   
PT Bank Rakyat Indonesia Tbk 
    14,821,500       8,487,321  
             
 
              21,631,635  
             
 
 
Thailand — 2.3%
               
   
Aromatics Public Co., Ltd. — NVDR 
    6,416,400       5,837,204  
   
Bank of Ayudhya Public Co., Ltd. — NVDR 
    10,051,500       5,217,140  
   
BEC World Public Co., Ltd. — NVDR 
    11,503,200       6,846,757  
             
 
              17,901,101  
             
 
 
Singapore — 1.8%
               
   
Chartered Semiconductor Manufacturing, Ltd.** 
    5,188,000       4,329,676  
   
Singapore Exchange, Ltd. 
    2,719,000       10,104,841  
             
 
              14,434,517  
             
 
 
Malaysia — 1.8%
               
   
IGB Corp. BHD 
    6,038,000       3,080,612  
   
Resorts World BHD 
    1,426,700       5,904,144  
   
RHB Capital BHD 
    5,417,800       5,251,949  
             
 
              14,236,705  
             
 
 
Philippines — 1.0%
               
   
Ayala Land, Inc. 
    24,852,300       7,726,760  
             
 
   
Total FAR EAST
            349,289,571  
             
 
SOUTH AMERICA — 14.7%
               
 
Brazil — 11.9%
               
   
All America Latina Logistica SA 
    725,500       7,528,357  
   
Aracruz Celulose SA — ADR 
    190,310       11,654,585  
   
Companhia Energetica de Minas Gerais SA — ADR 
    55,554       2,677,703  
   
Cosan SA Industria e Comercio** 
    268,070       5,608,579  
   
Cyrela Brazil Realty SA 
    1,082,940       10,335,196  
   
Dufry South America Ltd. — BDR** 
    125,000       1,638,193  
   
Localiza Rent-a-Car SA 
    453,730       13,644,818  
   
Natura Cosmeticos SA 
    327,700       4,624,458  
 
Notes to Financial Statements are an integral part of this Schedule.

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Driehaus Emerging Markets Growth Fund
Schedule of Investments
December 31, 2006

 
                     
Market
Number Value
of Shares (Note A)

   
Net Servicos de Comunicacao SA (Pref.)** 
    1,503,766     $ 17,082,331  
   
Petroleo Brasileiro SA — ADR 
    182,600       18,805,974  
             
 
              93,600,194  
             
 
 
Argentina — 1.7%
               
   
Banco Macro SA — ADR 
    153,900       4,803,219  
   
IRSA Inversiones y Representaciones S.A. — GDR** 
    527,700       8,923,407  
             
 
              13,726,626  
             
 
 
Chile — 1.1%
               
   
La Polar S.A. 
    1,679,818       8,600,289  
             
 
   
Total SOUTH AMERICA 
            115,927,109  
             
 
EUROPE 14.4%
               
 
Russia — 7.9%
               
   
CTC Media, Inc.** 
    246,941       5,929,053  
   
Golden Telecom, Inc. 
    123,700       5,794,108  
   
Mechel — ADR 
    210,611       5,366,368  
   
NovaTek OAO — GDR 
    211,091       13,404,279  
   
Sberbank RF 
    2,870       9,901,500  
   
Unified Energy System — GDR 
    116,031       12,716,998  
   
X5 Retail Group NV — GDR** 
    357,883       9,304,958  
             
 
              62,417,264  
             
 
 
Austria — 2.2%
               
   
Raiffeisen International Bank Holding AG 
    112,168       17,103,195  
             
 
 
United Kingdom — 1.6%
               
   
Amdocs, Ltd.** 
    107,200       4,154,000  
   
Tullow Oil PLC 
    1,052,153       8,199,185  
             
 
              12,353,185  
             
 
 
Poland — 0.9%
               
   
TVN SA** 
    856,825       7,348,515  
             
 
 
Greece — 0.7%
               
   
Coca-Cola Hellenic Bottling Co. S.A. 
    146,038       5,706,191  
             
 
 
Turkey — 0.7%
               
   
Turkiye Sinai Kalkinma Bankasi AS 
    3,008,907       5,484,267  
             
 
 
Kazakhstan — 0.4%
               
   
Kazakhmys PLC 
    158,974       3,455,077  
             
 
   
Total EUROPE 
            113,867,694  
             
 
AFRICA — 9.0%
               
 
South Africa — 7.3%
               
   
Foschini, Ltd. 
    811,413       6,641,016  
   
MTN Group, Ltd. 
    920,962       11,201,377  
   
Murray & Roberts Holdings, Ltd. 
    1,087,287       6,216,834  
   
Nedbank Group, Ltd. 
    602,769       11,473,947  
   
Sappi, Ltd. 
    593,406       9,941,925  
   
Sasol, Ltd. 
    336,441       12,414,725  
             
 
              57,889,824  
             
 
 
North Africa — 1.7%
               
   
Orascom Telecom Holding SAE — GDR 
    198,688       13,113,408  
             
 
   
Total AFRICA 
            71,003,232  
             
 
NORTH AMERICA — 8.1%
               
 
Mexico — 6.7%
               
   
America Movil SA de CV — L — ADR 
    318,545       14,404,605  
   
Fomento Economico Mexicano SA de CV — ADR 
    127,900       14,805,704  
   
Grupo Aeroportuario del Pacifico SA de CV — ADR 
    315,300       12,356,607  
   
Urbi Desarrollos Urbanos SA de CV** 
    3,163,928       11,422,123  
             
 
              52,989,039  
             
 
 
Canada — 1.4%
               
   
Addax Petroleum Corp. 
    164,108       4,607,379  
   
SXR Uranium One, Inc.** 
    443,270       6,081,825  
             
 
              10,689,204  
             
 
   
Total NORTH AMERICA 
            63,678,243  
             
 
   
Total EQUITY SECURITIES
(Cost $526,913,968) 
            713,765,849  
             
 

EQUITY CERTIFICATES — 4.6%

FAR EAST — 4.6%
               
 
India — 4.6%
               
   
Cipla, Ltd.† 
    894,636     $ 5,083,501  
   
Jaiprakash Associates, Ltd.† 
    737,894       12,148,834  
   
Reliance Communications Ltd**† 
    1,015,281       10,852,338  
   
Suzlon Energy, Ltd.† 
    264,413       7,826,916  
             
 
   
Total EQUITY CERTIFICATES
(Cost $24,589,044) 
            35,911,589  
             
 

   
TOTAL INVESTMENTS (COST $551,503,012) 
    95.0%     $ 749,677,438  
   
Other Assets in Excess of Liabilities 
    5.0%       39,113,527  
     
     
 
Net Assets 
    100.00%     $ 788,790,965  

 
Notes to Financial Statements are an integral part of this Schedule.

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Driehaus Emerging Markets Growth Fund
Schedule of Investments
December 31, 2006

 

  The federal income tax basis and unrealized appreciation (depreciation) for all investments is as follows:

                   
Basis:     $ 561,673,350  
     
 
Gross Appreciation     $ 188,589,934  
Gross Depreciation       (585,846 )
     
 
 
Net Appreciation
           $ 188,004,088  
             
 

**  Non-income producing security

 †  Restricted security — Investments in securities not registered under the Securities Act of 1933, excluding 144A securities. At December 31, 2006, the value of these restricted securities amounted to $35,911,589 or 4.6% of net assets.

    Additional information on each restricted security is as follows:

                 
Acquisition Acquisition
Security Date(s) Cost

Cipla, Ltd. 
    07/15/05 to 12/27/06     $ 4,002,841  
Jaiprakash Associates, Ltd. 
    08/05/05 to 12/27/06     $ 5,842,718  
Reliance Communications Ltd. 
    10/17/06 to 12/15/06     $ 8,745,353  
Suzlon Energy, Ltd. 
    01/24/06 to 08/09/06     $ 5,998,132  

ADR — American Depository Receipt

BDR — Bearer Depository Receipts
GDR — Global Depository Receipt
NVDR — Non-Voting Depository Receipt
 
Notes to Financial Statements are an integral part of this Schedule.

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Driehaus Emerging Markets Growth Fund
Schedule of Investments
December 31, 2006

         
Percent of
Industry Net Assets


Airlines 
    1.6%  
Alternative Energy 
    0.8%  
Automobiles 
    2.4%  
Banking 
    7.9%  
Basic Industries/ Multi-Industry 
    0.8%  
Beverages 
    2.6%  
Broadcasting & Publishing Services 
    3.1%  
Business & Public Services 
    1.4%  
Capital Goods/ Multi-Industry 
    0.7%  
Chemicals 
    1.6%  
Communications 
    2.0%  
Construction 
    1.4%  
Consumer Durables/ Multi-Industry 
    1.0%  
Consumer Non-Durables/ Multi-Industry 
    0.6%  
Consumer Services/ Multi-Industry 
    6.8%  
Electric Utilities 
    2.0%  
Electrical & Electronics 
    2.7%  
Electronic Components 
    4.6%  
Energy Sources 
    3.7%  
Financial Services 
    4.7%  
Food & Household 
    2.9%  
Forest Products 
    2.7%  
Gold Mining 
    1.5%  
Health Care 
    2.2%  
Insurance 
    1.7%  
Investments 
    1.1%  
Leisure & Tourism 
    1.6%  
Medical Supplies 
    0.8%  
Merchandising 
    2.6%  
Metal Fabricators & Distributors 
    0.8%  
Metals — Nonferrous 
    2.7%  
Metals — Steel 
    2.4%  
Oil 
    3.7%  
Real Estate 
    4.3%  
Technology/ Multi-Industry 
    3.5%  
Telecommunications 
    3.7%  
Telephone Utilities 
    3.5%  
Transportation — Shipping 
    0.9%  
Other Assets in Excess of Liabilities 
    5.0%  
     
 
TOTAL 
    100.0%  
     
 
 
Notes to Financial Statements are an integral part of this Schedule.

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Driehaus Emerging Markets Growth Fund
Statement of Assets and Liabilities
December 31, 2006

               
ASSETS:
       
 
Investments, at market value (Cost $551,503,012)
  $ 749,677,438  
 
Foreign currency (Cost $12,525,974)
    12,722,645  
 
Cash
    25,626,860  
 
Receivables:
       
   
Dividends
    1,102,705  
   
Interest
    44,531  
   
Investment securities sold
    2,502,602  
   
Fund shares sold
    6,170,749  
   
Net unrealized appreciation on unsettled foreign currency forward contracts from transaction hedges
    996  
 
Prepaid expenses and other assets
    49,943  
     
 

     
TOTAL ASSETS
    797,898,469  
     
 

LIABILITIES:
       
 
Payables:
       
   
Investment securities purchased
    7,240,259  
   
Fund shares redeemed
    615,532  
   
Due to affiliates
    953,836  
   
Foreign taxes
    63,637  
 
Accrued expenses
    234,240  
     
 

     
TOTAL LIABILITIES
    9,107,504  
     
 

NET ASSETS
  $ 788,790,965  
     
 
SHARES OUTSTANDING (Unlimited shares authorized, no par value)
    20,179,585  
     
 
NET ASSET VALUE
  $ 39.09  
     
 

NET ASSETS CONSISTED OF THE FOLLOWING AT DECEMBER 31, 2006:
       
 
Paid-in capital
    585,612,296  
 
Accumulated net investment loss
    (128,569 )
 
Accumulated net realized gain
    4,932,136  
 
Unrealized net foreign exchange gain
    200,676  
 
Unrealized net appreciation on investments
    198,174,426  
     
 
     
NET ASSETS
  $ 788,790,965  
     
 

 
Notes to Financial Statements are an integral part of this Statement.

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Driehaus Emerging Markets Growth Fund
Statement of Operations
For the year ended December 31, 2006

                   
INVESTMENT LOSS:
       
 
Income:
       
   
Dividends (Net of non-reclaimable taxes of $736,573)
  $ 6,779,523  
   
Interest 
    475,737  
   
Other 
    1,922  
     
 

     
Total income 
    7,257,182  
     
 

 
Expenses:
       
   
Investment advisory fee 
    7,503,544  
   
Administration fee 
    467,756  
   
Professional fees 
    205,549  
   
Federal and state registration fees 
    111,855  
   
Custodian fees
    502,501  
   
Transfer agent fees
    86,439  
   
Trustees’ fees
    62,000  
   
Miscellaneous
    222,087  
     
 
   
Total expenses
    9,161,731  
     
 

   
Fees paid indirectly
    (279,071 )
     
 
       
Net expenses 
    8,882,660  
     
 

         
Net investment loss 
    (1,625,478 )
     
 

NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND FOREIGN CURRENCY TRANSACTIONS:        
   
Net realized gain from security transactions 
    24,668,771  
   
Net realized foreign exchange loss 
    (979,935 )
   
Net change in unrealized foreign exchange gain 
    141,643  
   
Net change in unrealized appreciation of investments 
    138,018,035  
     
 

       
Net realized and unrealized gain on investments and foreign currency transactions 
    161,848,514  
     
 

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS 
  $ 160,223,036  
     
 

 
Notes to Financial Statements are an integral part of this Statement.

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Driehaus Emerging Markets Growth Fund
Statement of Changes in Net Assets

                       
For the year For the year
ended ended
December 31, 2006 December 31, 2005

INCREASE IN NET ASSETS:
               
 
Operations:
               
   
Net investment loss
  $ (1,625,478 )   $ (31,702 )
   
Net realized gain on investments and foreign currency transactions
    23,688,836       25,775,696  
   
Net change in unrealized gain on investments and foreign currency transactions
    138,159,678       28,773,591  
     
     
 

     
Net increase in net assets resulting from operations
    160,223,036       54,517,585  
     
     
 

 
Distributions to shareholders:
               
   
Net investment income
          (570,827 )
   
Capital gains
    (16,462,450 )     (25,810,044 )
     
     
 
     
Total distributions to shareholders
    (16,462,450 )     (26,380,871 )
     
     
 

 
Capital share transactions:
               
   
Proceeds from shares sold
    599,390,018       119,850,579  
   
Reinvestment of distributions
    16,441,182       25,961,648  
   
Cost of shares redeemed
    (213,087,995 )     (75,911,982 )
   
Redemption fees
    700,347       70,067  
     
     
 
     
Net increase in net assets derived from capital share transactions
    403,443,552       69,970,312  
     
     
 
     
Total increase in net assets
    547,204,138       98,107,026  
     
     
 

NET ASSETS:
               

 
Beginning of period
  $ 241,586,827     $ 143,479,801  
     
     
 
 
End of period (Including accumulated net investment loss of $128,569 and $152,608, respectively)
  $ 788,790,965     $ 241,586,827  
     
     
 

 
Capital share transactions are as follows:
               
   
Shares issued
    17,692,607       4,518,939  
   
Shares reinvested
    426,164       938,938  
   
Shares redeemed
    (6,477,726 )     (3,157,344 )
     
     
 
     
Net increase from capital share transactions
    11,641,045       2,300,533  
     
     
 

 
Notes to Financial Statements are an integral part of this Statement.

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Driehaus Emerging Markets Growth Fund
Financial Highlights

                                             
For the year For the year For the year For the year For the year
ended ended ended ended ended
December 31, December 31, December 31, December 31, December 31,
2006 2005 2004 2003 2002

Net asset value, beginning of period
  $ 28.29     $ 23.00     $ 20.29     $ 12.26     $ 13.27  
     
     
     
     
     
 
 
INCOME (LOSS) FROM INVESTMENT OPERATIONS:
                                       
 
Net investment income (loss)
    (0.07 )     0.04       (0.01 )     0.00       (0.09 )
 
Net realized and unrealized gain (loss) on investments and foreign currency transactions
    11.68       8.83       4.75       8.03       (0.93 )
     
     
     
     
     
 
   
Total income (loss) from investment operations
    11.61       8.87       4.74       8.03       (1.02 )
     
     
     
     
     
 
 
LESS DISTRIBUTIONS:
                                       
 
Dividends from net investment income
          (0.08 )     (0.04 )            
 
Distributions from capital gains
    (0.84 )     (3.51 )     (2.00 )            
     
     
     
     
     
 
   
Total distributions
    (0.84 )     (3.59 )     (2.04 )            
     
     
     
     
     
 
Redemption fees added to paid-in capital
    0.03       0.01       0.01       0.00  ~     0.01  
     
     
     
     
     
 
Net asset value, end of period
  $ 39.09     $ 28.29     $ 23.00     $ 20.29     $ 12.26  
     
     
     
     
     
 
   
Total Return
    41.22  %     38.95  %     24.12  %     65.50  %     (7.61 )%
RATIOS/ SUPPLEMENTAL DATA
                                       
 
Net assets, end of period (in 000’s)
  $ 788,791     $ 241,587     $ 143,480     $ 99,986     $ 35,932  
 
Ratio of expenses before fees paid indirectly to average net assets
    1.83  %     2.07  %     2.23  %     2.35  %†     2.50  %†
 
Ratio of net expenses to average net assets
    1.78  %#     2.01  %#     2.03  %#     2.34  %†#     2.16  %†#
 
Ratio of net investment income (loss) to average net assets
    (0.32 )%#     (0.02 )%#     (0.29 )%#     0.04  %†#     (0.76 )%†#
 
Portfolio turnover
    181.01  %     349.69  %     356.90  %     432.47  %     355.14  %

 ~  Amount represents less than $0.01 per share
 
 †  The Adviser agreed to absorb other operating expenses to the extent necessary to ensure that the total Fund operating expenses (other than interest, taxes, brokerage commissions and other portfolio transaction expenses, capital expenditures, and extraordinary expenses) would not exceed the Fund’s operating expense cap for the first sixty-six months of its operations. For the period June 1, 1999 through June 30, 2002, the operating expense cap was 2.50% of average net assets. For the period July 1, 2002 through June 30, 2003, the Fund was reimbursed for expenses exceeding the 2.50% expense cap after reduction of amounts received through commission recapture programs that were applied to Fund expenses.
 
Such ratios are net of fees paid indirectly (see Note B in the Notes to Financial Statements).

 
Notes to Financial Statements are an integral part of this Schedule.

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Driehaus Mutual Funds
Notes to Financial Statements

 
A.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Organization

     The Driehaus Mutual Funds (the “Trust”) is a registered management investment company, organized as a Delaware statutory trust, currently with two operational series (“Funds”). The Trust was organized under an Agreement and Declaration of Trust dated May 31, 1996 and may issue an unlimited number of full and fractional units of beneficial interest (shares) without par value. The two Funds included in the Trust are as follows:

         
Fund Commencement of Operations

Driehaus International Discovery Fund
    12/31/98  
Driehaus Emerging Markets Growth Fund
    12/31/97  

     The investment objective of the Funds is to maximize capital appreciation.

     The Driehaus International Discovery Fund seeks to achieve its objective by generally investing in equity securities of small to mid-size foreign companies; however, the Fund may shift its focus toward large cap foreign stocks when market conditions suggest doing so will help the Fund achieve its objective.

     The Driehaus Emerging Markets Growth Fund seeks to achieve its objective by investing primarily in equity securities of emerging markets companies.

Fiscal Year End

     The fiscal year end for the Funds is December 31.

Securities Valuation and Transactions

     Equity securities are valued at the last sale price as of the close of the appropriate exchange or other designated time. In addition, if quotations are not readily available, if the values have been materially affected by events occurring after the closing of a foreign market, or if there has been a movement in the United States market that exceeds a certain threshold, assets may be valued at fair value as determined in good faith by or under the direction of the Trust’s Board of Trustees. Events that may materially affect asset values that could cause a fair value determination include, but are not limited to: corporate announcements relating to a specific security; natural and other disasters which may impact an entire market or region; and political and other events which may be global or impact a particular country or region.

     Securities transactions are accounted for on trade date. The cost of investments sold is determined by the use of specific identification method for both financial reporting and income tax purposes. Interest income is recorded on an accrual basis. Dividend income, net of non-reclaimable foreign taxes withheld, is recorded on the ex-dividend date or as soon as the information is available.

     The Funds determine income and expenses daily.

Federal Income Taxes

     No provision is made for Federal income taxes since each Fund has elected to be taxed as a “regulated investment company” under Subchapter M of the Internal Revenue Code (the “Code”) and has made and declared all the required distributions to its shareholders in amounts sufficient to relieve the Fund from all or substantially all Federal income and excise taxes under provisions of current Federal tax law.

     The amount of dividends and distributions from net investment income and net realized capital gains are determined in accordance with Federal income tax regulations, which may differ from generally accepted accounting principles.

     For the year ended December 31, 2006, reclassifications were recorded to undistributed net investment income, undistributed net realized foreign exchange loss and undistributed net realized gain for any permanent tax differences. These reclassifications relate primarily to foreign currency losses, sales of passive foreign

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Driehaus Mutual Funds
Notes to Financial Statements — (Continued)

investment companies and net operating losses. Results of operations and net assets were not affected by these classifications.

                 
Driehaus Driehaus
International Emerging Markets
Discovery Fund Growth Fund


Undistributed ordinary income
  $ 740,641     $ 1,649,517  
Undistributed net realized gain
    (740,641 )     (1,649,517 )

     During the year ended December 31, 2006, the Driehaus International Discovery Fund utilized $5,786,701 of capital loss carryforwards and as of December 31, 2006, the Fund had capital loss carryforwards of $105,979,001 expiring in 2008 and $24,839,330 expiring in 2009. During the year ended December 31, 2006, the Driehaus Emerging Markets Growth Fund utilized $949,637 of capital loss carryforwards and as of December 31, 2006, the Fund had capital loss carryforwards of $402,998 expiring in 2009. To the extent that the Funds realize future net capital gains, those capital gains will be offset by any unused capital loss carryforwards subject to the limitations described below. For the year ended December 31, 2006, the Driehaus International Discovery Fund and the Driehaus Emerging Markets Growth Fund realized no post-October capital losses. The Driehaus International Discovery Fund realized post-October foreign currency losses of $126,175, which were deferred for tax purposes and were recognized on January 1, 2007, and the Driehaus Emerging Markets Growth Fund realized post-October foreign currency losses of $128,570, which were deferred for tax purposes and were recognized on January 1, 2007.

     Included in the capital loss carryforward amounts stated above are capital losses that the Driehaus International Discovery Fund inherited from its merger with the Driehaus International Growth Fund and the Driehaus European Opportunity Fund on September 29, 2003 of approximately $130,049,224 and $769,107, respectively, which may be applied against any realized net taxable capital gains in future years or until December 31, 2009. Section 382 of the Code imposes certain limitations that will likely reduce the Fund’s ability to use the majority of these capital loss carryforwards.

     Included in the capital loss carryforward amounts stated above are capital losses that the Driehaus Emerging Markets Growth Fund inherited from its merger with the Driehaus Asia Pacific Growth Fund on September 29, 2003 of approximately $402,998, which may be applied against any realized net taxable capital gains in future years or until December 31, 2009. Section 382 of the Code imposes certain limitations that will likely reduce the Fund’s ability to use the majority of these capital loss carryforwards.

Distributions to Shareholders

     The tax character of distributions paid during the fiscal years ended December 31, 2006 and December 31, 2005 was as follows:

                                   
Driehaus Driehaus
International Emerging Markets
Discovery Fund Growth Fund


Distributions paid from: 2006 2005 2006 2005





Ordinary income
  $ 27,202,119     $ 41,961,124     $ 1,568,623     $ 16,037,581  
Net long-term capital gains
    87,564,888       12,786,172       14,893,827       10,343,290  
     
     
     
     
 
 
Total distributions paid
  $ 114,767,007     $ 54,747,296     $ 16,462,450     $ 26,380,871  
     
     
     
     
 

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Driehaus Mutual Funds
Notes to Financial Statements — (Continued)

     As of December 31, 2006, the components of net assets on a tax basis were as follows:

                   
Driehaus Driehaus
International Emerging Markets
Discovery Fund Growth Fund


Undistributed ordinary income
  $ 7,218,550     $ 7,078,478  
Undistributed long-term capital gain
    5,718,890       8,426,995  
     
     
 
 
Accumulated earnings
  $ 12,937,440     $ 15,505,473  
Paid-in capital
    636,452,371       585,612,296  
Accumulated capital and other losses
    (130,944,506 )     (531,568 )
Unrealized appreciation on foreign currency
    79,268       200,676  
Unrealized appreciation on investments
    121,226,700       188,004,088  
     
     
 
 
Net assets
  $ 639,751,273     $ 788,790,965  
     
     
 

     The differences between book-basis and tax-basis unrealized appreciation are attributable primarily to the tax deferral of losses on wash sales and passive foreign investment company (PFIC) mark-to-market.

Foreign Currency Translation

     Foreign currency is translated into U.S. dollar values based upon the current rates of exchange on the date of the Funds’ valuations.

     Net realized foreign exchange gains or losses which are reported by the Funds result from currency gains and losses on transaction hedges arising from changes in exchange rates between the trade and settlement dates on forward contracts underlying securities transactions, and the difference between the amounts accrued for dividends, interest, and foreign taxes and the amounts actually received or paid in U.S. dollars for these items. Net unrealized foreign exchange gains and losses result from changes in the U.S. dollar value of assets and liabilities (other than investments in securities), which are denominated in foreign currencies, as a result of changes in exchange rates.

     Net realized foreign exchange gains or losses on portfolio hedges result from the use of forward contracts to hedge portfolio positions denominated or quoted in a particular currency in order to reduce or limit exposure in that currency. The Funds had no portfolio hedges during the year ended December 31, 2006.

     The Funds do not isolate that portion of the results of operations which results from fluctuations in foreign exchange rates on investments. These fluctuations are included with the net realized gain (loss) from security transactions and the net change in unrealized appreciation (depreciation) of investments.

Use of Estimates

     The preparation of financial statements, in conformity with U.S. generally accepted accounting principles, requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of net increases or decreases in net assets from operations during the reporting period. Actual results could differ from those estimates.

Indemnifications

     Under the Trust’s organizational documents, the Officers and Trustees are indemnified against certain liabilities arising out of the performance of their duties to the Trust. In addition, in the normal course of business, the Trust enters into contracts that provide general indemnifications to other parties. The Funds’ maximum exposure under these agreements is unknown as this would involve future claims that may be made against the Funds that have not yet occurred. However, the Funds have not had prior claims or losses pursuant to these contracts and expect the risk of loss to be remote.

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Driehaus Mutual Funds
Notes to Financial Statements — (Continued)

New Accounting Pronouncements

     On July 13, 2006, the Financial Accounting Standards Board (FASB) released FASB Interpretation No. 48, “Accounting for Uncertainty in Income Taxes” (FIN 48). FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. FIN 48 requires the evaluation of tax positions taken or expected to be taken in the course of preparing the Funds’ tax returns to determine whether the tax positions are “more-likely-than-not” of being sustained by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold would be recorded as a tax benefit or expense in the current year. Adoption of FIN 48 is required for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. Recent SEC guidance allows for implementation of FIN 48 in fund NAV calculations as late as the fund’s last NAV calculation in the first required financial statement reporting period. As a result, the Funds will incorporate FIN 48 in their semi-annual report dated June 30, 2007.

     In September, 2006, the FASB issued Statement on Financial Accounting Standards No. 157, “Fair Value Measurements” (FAS 157). This standard clarifies the definition of fair value for financial reporting, establishes a framework for measuring fair value and requires additional disclosures about the use of fair value measurements. FAS 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within those fiscal years. As of December 31, 2006, the Funds do not believe the adoption of FAS 157 will impact the amounts reported in the financial statements, however, additional disclosures will be required about the inputs used to develop the measurements of fair value and the effect of certain of the measurements reported in the statement of operations for a fiscal period.

 
B.  INVESTMENT ADVISORY FEES, TRANSACTIONS WITH AFFILIATES, AND ADMINISTRATIVE FEES

     Richard H. Driehaus, the President of the Trust, is also the Chairman of the Board of Driehaus Capital Management LLC (“DCM”), a registered investment adviser, and of Driehaus Securities LLC (“DS LLC”), a registered broker-dealer.

     DCM serves as the Funds’ investment adviser. In return for its services to the Funds, DCM receives a monthly fee, computed and accrued daily at an annual rate of 1.50% of each Fund’s average daily net assets. Effective October 1, 2006, the Driehaus International Discovery Fund began paying the Adviser an annual management fee on a monthly basis as follows: 1.50% on the first $500 million of average daily net assets, 1.35% on the next $500 million and 1.25% of average daily net assets in excess of $1 billion.

     The amounts accrued and payable to DCM during the year ended December 31, 2006, are as follows:

                 
Advisory Fees
Payable
(included in Due
Fund Advisory Fees to affiliates)

Driehaus International Discovery Fund
  $ 10,421,095     $ 797,532  
Driehaus Emerging Markets Growth Fund
    7,503,544       953,836  

     The Funds direct certain portfolio trades, subject to obtaining the best price and execution, to brokers who have agreed to rebate to the Funds part of the commissions generated. Such rebates are currently used to offset a portion of the Funds’ operating expenses. For the year ended December 31, 2006, these arrangements reduced the expenses of the Driehaus International Discovery Fund and the Driehaus Emerging Markets Growth Fund by $442,705 (3.6%) and $279,071 (3.0%), respectively.

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Driehaus Mutual Funds
Notes to Financial Statements — (Continued)

     DS LLC is the Funds’ distributor. DS LLC also acts as a broker for the Funds for domestically traded securities. For the year ended December 31, 2006, the Funds paid the following brokerage commissions:

                         
Total Commissions Shares Traded
Fund Commissions Paid to DS LLC through DS LLC

Driehaus International Discovery Fund
  $ 6,399,870     $ 46,440       3,484,374  
Driehaus Emerging Markets Growth Fund
    5,618,033       304,246       13,421,574  

     A portion of these commissions are, in turn, paid by DS LLC to third parties for clearing and execution services.

     Certain officers of the Trust are also officers of DCM and DS LLC. No such officers received compensation from the Funds.

     PFPC Inc. (“PFPC”), an indirect subsidiary of PNC Financial Services Group, Inc., serves as the Funds’ administrative and accounting agent. In compensation for these services, PFPC receives the larger of a monthly minimum fee or a monthly fee based upon average net assets. PFPC also acts as the transfer agent and dividend disbursing agent for the Funds. For these services, PFPC receives a monthly fee based on shareholder processing activity during the month.

 
C.  DERIVATIVES AND OTHER FINANCIAL INSTRUMENTS

     The Funds invest in equity certificates which allow the Funds to participate in the appreciation (depreciation) of the underlying security without actually owning the underlying security. These instruments are purchased pursuant to an agreement with a financial institution and are valued at a calculated market price based on the value of the underlying security in accordance with the agreement. At December 31, 2006, the Driehaus International Discovery Fund and the Driehaus Emerging Markets Growth Fund had unrealized appreciation of $2,024,175 and $11,322,545, respectively, as a result of their investment in these financial instruments. The aggregate market values of these certificates for the Driehaus International Discovery Fund and the Driehaus Emerging Markets Growth Fund represented 0.5% and 4.8%, respectively, of their total market values at December 31, 2006.

     At December 31, 2006, the Funds had foreign currency forward contracts outstanding under which they are obligated to exchange currencies at specified future dates. At December 31, 2006, the Funds’ currency transactions are limited to transaction hedges.

     The contractual amounts of foreign currency forward contracts do not necessarily represent the amounts potentially subject to risk. The measurement of the risks associated with these instruments is meaningful only when all related and offsetting transactions are considered. Risks arise from the possible inability of counter parties to meet the terms of their contracts and from movements in currency values.

     The Funds had the following outstanding contracts at December 31, 2006:

Driehaus International Discovery Fund

Transaction Hedges:

Foreign Currency Purchased:

                                 
Unrealized
Appreciation
US Dollars Settlement (Depreciation)
Sold Foreign Currency Purchased Date at December 31, 2006

$ 1,693,176       3,617,471     Brazilian Real     January 2007     $ 5,136  
  747,500       566,268     Euro     January 2007       1,211  
  5,320,160       633,125,696     Japanese Yen     January 2007       (19,494 )
                             
 
                            $ (13,147 )

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Driehaus Mutual Funds
Notes to Financial Statements — (Continued)

Driehaus International Discovery Fund — (Continued)

Foreign Currency Sold:

                                 
Unrealized
Appreciation
US Dollars Settlement (Depreciation)
Purchased Foreign Currency Sold Date at December 31, 2006

$ 1,341,056       1,698,944     Australian Dollar     January 2007     $ 855  
  1,758,111       209,224,051     Japanese Yen     January 2007       6,375  
  1,435,628       2,032,131     Turkish Lira     January 2007       (991 )
                             
 
                            $ 6,239  
                             
 
                Net unrealized depreciation   $ (6,908 )
                             
 

Driehaus Emerging Markets Growth Fund

Transaction Hedges:

Foreign Currency Purchased:

                                 
Unrealized
Appreciation
US Dollars Settlement (Depreciation)
Sold Foreign Currency Purchased Date at December 31, 2006

$ 728,205       849,197     Canadian Dollar     January 2007     $ (31 )
  1,173,146       888,717     Euro     January 2007       1,542  
  148,193       1,152,689     Hong Kong Dollar     January 2007       (119 )
  393,998       3,543,417,494     Indonesian Rupiah     January 2007       1,592  
  3,059,717       21,458,560     South African Rand     January 2007       (1,964 )
                             
 
                            $ 1,020  

Foreign Currency Sold:

                                 
Unrealized
Appreciation
US Dollars Settlement (Depreciation)
Purchased Foreign Currency Sold Date at December 31, 2006

$ 136,740       1,229,767,426     Indonesian Rupiah     January 2007     $ (590 )
  1,316,022       1,223,900,913     South Korean Won     January 2007       566  
                             
 
                            $ (24 )
                             
 
                Net unrealized appreciation   $ 996  
                             
 

D. INVESTMENT TRANSACTIONS

     The aggregate purchases and sales of investment securities, other than short-term obligations, for the year ended December 31, 2006, were as follows:

                 
Fund Purchases Sales

Driehaus International Discovery Fund
  $ 1,403,552,550     $ 1,464,560,537  
Driehaus Emerging Markets Growth Fund
    1,223,111,776       863,090,007  

E. RESTRICTED SECURITIES

     Restricted securities are securities that are not registered for sale under the Securities Act of 1933 or applicable foreign law and that may be re-sold only in transactions exempt from applicable registration. Restricted securities include Rule 144A securities which may be sold normally to qualified institutional buyers.

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Driehaus Mutual Funds
Notes to Financial Statements — (Continued)

At December 31, 2006, the Funds held no restricted securities, other than equity certificates. Since an investment in equity certificates represents an agreement entered into with a financial institution, with terms set by such financial institution, these instruments are also deemed to be restricted (see Note C).

F. LINE OF CREDIT

     The Funds have a $50 million line of credit consisting of a $25 million committed line and a $25 million uncommitted line. This line of credit is available primarily to meet large, unexpected shareholder withdrawals subject to certain restrictions. The Funds have agreed to pay commitment fees computed at a rate of 0.125% per annum on the average daily amount of the available committed line. Interest is charged at a rate per annum equal to the Federal Funds Rate in effect at the time of borrowings plus 1%. At December 31, 2006, the Funds had no outstanding borrowings under the line of credit.

G. OFF BALANCE SHEET RISKS

     The Funds’ investments in foreign securities may entail risks due to the potential for political and economic instability in the countries where the issuers of these securities are located. In addition, foreign exchange fluctuations could affect the value of positions held. These risks are generally intensified in emerging markets.

H. REDEMPTION FEES

     The Funds may charge a redemption fee of 2.00% of the redemption amount for shares redeemed within 60 days of purchase. This redemption fee became effective for shares purchased after July 31, 2000. The redemption fees are recorded in paid-in capital.

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Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Trustees of the Driehaus Mutual Funds:

     We have audited the accompanying statements of assets and liabilities of the Driehaus Mutual Funds (comprising the Driehaus International Discovery Fund and the Driehaus Emerging Markets Growth Fund) (the “Funds”), including the schedules of investments, as of December 31, 2006, and the related statements of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Funds’ management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

     We conducted our audits 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 and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Funds’ internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Funds’ internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of December 31, 2006, by correspondence with the custodian and brokers. We believe that our audits provide a reasonable basis for our opinion.

     In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of each of the respective Funds constituting the Driehaus Mutual Funds at December 31, 2006, the results of their operations for the year then ended, the changes in their net assets for each of the two years in the period then ended and the financial highlights for each of the five years in the period then ended, in conformity with U.S. generally accepted accounting principles.

 

Chicago, Illinois

February 16, 2007

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Interested and Independent Trustees of the Trust

      The following table sets forth certain information with respect to the Trustees of the Trust:

                     
Number of
Term of Portfolios in
Office and the Fund Other
Position(s) Length of Principal Complex Directorships
Name, Address and Held with Time Occupations(s) Overseen by Held by
Year of Birth the Trust Served** During Past 5 Years Trustee Trustee






Interested Trustee:*
                   
Richard H. Driehaus
25 East Erie Street
Chicago, IL 60611
YOB: 1942
  Trustee
and President
  Since 1996   Chairman of the Board of the Adviser, the Distributor and Driehaus Capital Management (USVI) LLC (“USVI”); Chief Investment Officer and Portfolio Manager of the Adviser   2   Driehaus Enterprise Management, Inc.; Vintage Properties, Inc.; Davies 53 Limited; The Richard H. Driehaus Foundation; and The Richard H. Driehaus Museum
Independent Trustees:                
A.R. Umans
c/o Driehaus Capital Management LLC
25 East Erie Street
Chicago, IL 60611
YOB: 1927
  Trustee
and Chairman
  Since 1996

Since 2005
  Chairman of the Board, Commerce National Group (investment co.) since 2005; Chairman of the Board and Chief Executive Officer, RHC/Spacemaster Corporation (manufacturing corporation) prior thereto.   2   Sinai Health System
 
Francis J. Harmon
c/o Driehaus Capital
Management LLC
25 East Erie Street
Chicago, IL 60611
YOB: 1942
  Trustee   Since 1998   Principal Account Executive — Labor Affairs, Blue Cross and Blue Shield of Illinois.   2   None
 
Daniel F. Zemanek
c/o Driehaus Capital Management LLC
25 East Erie Street
Chicago, IL 60611
YOB: 1942
  Trustee   Since 1996   Senior Vice President of Sunrise Development, Inc. (senior living) since January 2003; Consultant, real-estate development, August 1998 to January 2003.   2   None

 *  Mr. Driehaus is an “interested person” of the Trust, the Adviser and the Distributor, as defined in the Investment Company Act of 1940, because he is an officer of the Adviser and the Distributor. In addition, Mr. Driehaus controls the Adviser and the Distributor.
 
**  Each Trustee will serve as a Trustee of the Trust until (i) termination of the Trust, or (ii) the Trustee’s retirement, resignation or death, or (iii) as otherwise specified in the Trust’s governing documents.

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Officers of the Trust

      The following table sets forth certain information with respect to the advisory board member and officers of the Trust:

             
Term of
Position(s) Office and Principal
Name, Address and Held with Length of Occupations(s)
Year of Birth the Trust Time Served During Past 5 Years




Arthur B. Mellin1
190 South LaSalle Street
Chicago, IL 60603
YOB: 1942
  Advisory Board Member   Since 1998   President of Mellin Securities Incorporated and Mellin Asset Management, Inc.
 
Robert H. Gordon
25 East Erie Street
Chicago, IL 60611
YOB: 1961
  Senior Vice President   Since 2006 2   President and Chief Executive Officer of Adviser, Distributor and USVI as of October 1, 2006; Advisor to Adviser and Distributor since 2006; Chief Executive Officer, Aris Capital Management from 2003-2006; President and Chief Executive Officer with Banc of America Capital Management from 1993-2003.
 
Michelle L. Cahoon
25 East Erie Street
Chicago, IL 60611
YOB: 1966
  Vice President and Treasurer   Since 2006 2


Since 2002 2
  Vice President, Treasurer and Chief Financial Officer of the Adviser, Distributor and USVI since 2004; Vice President and Controller of the Adviser since 2003; Vice President, Treasurer and Controller of the Distributor since 2003; Vice President and Treasurer of USVI since 2003; Controller of the Adviser and the Distributor since 2002; Manager with Arthur Andersen LLP from 1992-2002.
 
Janet L. McWilliams
25 East Erie Street
Chicago, IL 60611
YOB: 1970
  Chief Compliance Officer   Since 2006 2   Chief Compliance Officer of the Adviser and Distributor since 2006; Senior Attorney with the Adviser since 2003; Attorney with the Adviser since 2000.
 
Diane J. Drake
301 Bellevue Parkway
Wilmington, DE 19809
YOB: 1967
  Secretary   Since 2006 2   Vice President and Associate Counsel, PFPC Inc. (financial services company) since 2003; Deputy Counsel, Turner Investment Partners from 2001 to 2003; Associate, Stradley, Ronon, Stevens & Young LLP (law firm) from 1998-2001.
 
Kelly C. Dehler
25 East Erie Street
Chicago, IL 60611
YOB: 1961
  Assistant Secretary   Since 2004 2   Assistant Secretary of the Adviser and Distributor since 2006; Attorney with the Adviser since 2004; Regulatory Compliance Officer, Allstate Financial Services, LLC (retail broker-dealer) from 2003-2004; Assistant Secretary and Regulatory Associate of the Adviser from 2002-2003; Senior Paralegal with the Adviser from 2000-2002.
 
Candace A. Croal
301 Bellevue Parkway
Wilmington, DE 19809
YOB: 1975
  Assistant Secretary   Since 2005 2   Senior Regulatory Administrator, PFPC Inc. (financial services company) since 2002; Senior Paralegal, Morgan, Lewis & Bockius, LLP (law firm) from 1999-2002.

1  Mr. Driehaus and Mr. Mellin are brothers-in-law.
 
2  Officers of the Trust are elected annually.

     The Statement of Additional Information for the Driehaus Mutual Funds contains more detail about the Trust’s trustees and officers and is available upon request, without charge. For further information, please call 1-800-560-6111.

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Fund Expense Examples

      As a mutual fund shareholder, you may incur two types of costs: (1) transaction costs, including sales charges; redemption fees; and exchange fees and (2) ongoing costs, including management fees; distribution (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in each Fund and to compare these costs with the ongoing costs of investing in other mutual funds.

     The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire six months ended December 31, 2006.

Actual Expenses

     The first line of the tables below (“Actual”) provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expense that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled “Expenses Paid During Period” to estimate the expenses you paid on your account during this period.

Hypothetical Example for Comparison Purposes

     The second line of the tables below (“Hypothetical”) provides information about hypothetical account values and hypothetical expenses based on the Fund’s actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund’s actual return. You may use this information to compare the ongoing costs of investing in the Funds versus other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds.

     Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges, redemption fees or exchange fees. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher.

Driehaus International Discovery Fund

                         

Expenses Paid During
Beginning Account Ending Account Value Six Months Ending
July 1, 2006 December 31, 2006 December 31, 2006*

Actual
  $ 1,000     $ 1,095.50     $ 8.71  

Hypothetical (5% return before expenses)
  $ 1,000     $ 1,016.74     $ 8.39  

Driehaus Emerging Markets Growth Fund

                         

Expenses Paid During
Beginning Account Ending Account Value Six Months Ending
July 1, 2006 December 31, 2006 December 31, 2006*

Actual
  $ 1,000     $ 1,240.30     $ 9.88  

Hypothetical (5% return before expenses)
  $ 1,000     $ 1,016.23     $ 8.89  


Expenses are equal to the Fund’s annualized expense ratios for the six-month period in the table below multiplied by the average account value over the period, multiplied by the number of days in the most recent fiscal half-year (184), then divided by 365 to reflect the half-year period.

         
Driehaus International Discovery Fund
    1.65%  
Driehaus Emerging Markets Growth Fund
    1.75%  

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Shareholder Information

TAX INFORMATION (UNAUDITED) FOR THE YEAR ENDED DECEMBER 31, 2006

     We are providing this information as required by the Internal Revenue Code. The amounts shown may differ from those elsewhere in this report because of differences between tax and financial reporting requirements.

     The Funds’ distributions included capital gain amounts as follows:

                 
Driehaus Driehaus
International Emerging Markets
Discovery Fund Growth Fund


Total long-term gains
20% rate gains 
  $ 87,564,888     $ 21,501,944  

     For taxable non-corporate shareholders, the following percentages of income and short-term capital gains represent qualified dividend income subject to the 15% rate category:

                 
Driehaus Driehaus
International Emerging Markets
Discovery Fund Growth Fund


      23.56%       100.00%  

     For corporate shareholders, the following percentages of income and short-term capital gains qualified for the dividends-received deduction:

                 
Driehaus Driehaus
International Emerging Markets
Discovery Fund Growth Fund


      0.63%       0.00%  

PROXY VOTING POLICIES AND PROCEDURES AND PROXY VOTING RECORD

     A description of the Funds’ policies and procedures with respect to the voting of proxies relating to the Funds’ portfolio securities is available without charge, upon request, by calling 1-800-560-6111. This information is also available on the Funds’ website at http://www.driehaus.com.

     Information regarding how the Funds voted proxies related to portfolio securities during the 12-month period ended June 30, 2006 is available without charge, upon request, by calling 1-800-560-6111. This information is also available on the Securities and Exchange Commission’s (“SEC”) website at http://www.sec.gov.


HOW TO OBTAIN QUARTERLY PORTFOLIO HOLDINGS

     Each Fund files a complete schedule of portfolio holdings with the SEC for the first and third quarters of each fiscal year on Form N-Q. The Funds’ Form N-Q is available electronically on the SEC’s website at http://www.sec.gov; hard copies may be reviewed and copied at the SEC’s Public Reference Room in Washington, DC 20549. For more information on the Public Reference Room, call 1-800-SEC-0330. Each Fund’s complete schedule of portfolio holdings is also available on the Funds’ website at http://www.driehaus.com.

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Board Considerations in Connection with the Annual Review of the
Investment Advisory Agreement

      The Board of Trustees approved the renewal of the investment advisory agreement (the “Agreement”) with Driehaus Capital Management LLC (the “Adviser”) for Driehaus Emerging Markets Growth Fund (“DEMG”) and Driehaus International Discovery Fund (“DIDF”) in September 2006. As part of its review process, the Board requested and evaluated all information it deemed reasonably necessary to evaluate the Agreement. The Board reviewed comprehensive materials received from the Adviser and from independent legal counsel. The Board also received extensive information throughout the year regarding performance and operating results of each Fund. After their review of the information received, the Independent Trustees presented their findings and their recommendation to renew the Agreement to the full Board.

     In connection with the contract review process, the Board considered the factors discussed below, among others. The Board also considered that the Adviser has managed each Fund since its inception, and the Board believes that a long-term relationship with a capable, conscientious adviser is in the best interests of each Fund. The Board considered, generally, that shareholders invested in each Fund, knowing that the Adviser managed the Fund and knowing the investment advisory fee schedule.

     Nature, Quality and Extent of Services. The Board considered the nature, extent and quality of services provided under the Agreement, including portfolio management services and administrative services. The Board considered the experience and skills of senior management and investment personnel, the resources made available to such personnel, the ability of the Adviser to attract and retain high-quality personnel, and the organizational depth of the Adviser. The Board noted that the Adviser had devoted additional resources to DEMG over the past year, including adding a portfolio manager and two analysts as well as additional personnel at its office in Prague. The Board also considered compliance with legal and regulatory requirements, as well as the Adviser’s handling of portfolio brokerage, including its processes for seeking and measuring whether the Funds were obtaining best execution. The Board reviewed each Fund’s performance on a gross and net return basis over 1-, 3- and 5-year periods ended June 30, 2006, as well as over rolling periods since inception of each Fund. The Board noted that the Adviser represented that because its aggressive growth investment style resulted in performance volatility over shorter time periods, it was meaningful to analyze performance over rolling time periods to show the consistent out-performance to their benchmark indices over the life of the Funds. The Board compared short-term and long-term returns to various agreed-upon performance measures, including market indices and peer groups. The Board considered whether investment results were consistent with each Fund’s investment objective and policies.

     On the basis of this evaluation and its ongoing review of investment results, the Board concluded that the nature, quality and extent of services provided by the Adviser historically have been and continue to be satisfactory. The Board noted that the Funds’ gross and net performance for the 1-, 3- and 5-year periods, as compared to their respective peer groups (from data compiled from Morningstar Inc. and Lipper, independent providers of mutual fund data), and the Funds’ net performance as compared to their benchmark indices, was satisfactory. The Board noted that DEMG’s gross and net performance for each of these periods was first quartile as compared to its peer groups and that it outperformed its benchmark. The Board noted that DIDF’s net and gross performance for the 1-year and 5-year periods were in the first quartile of its peer groups, and for the 3-year period was just below the median as compared to its peer groups, and that it had outperformed its benchmark for each such period. The Board also noted each Fund’s favorable average annualized rolling year performance versus its benchmark.

     Fees and Expenses. The Board considered each Fund’s advisory fee rates, operating expenses and total expense ratio, and compared them to fees and expenses of peer groups based on data compiled from Lipper as of June 30, 2006 (which includes data as of earlier period-ends). The information provided to the Board showed that each Fund’s advisory fee rate ranked high as compared to its total peer group. However, because of the Funds’ fee structure, total expense ratios were comparatively much lower, with DEMG’s total expense ratio above the median of its peer group and with DIDF’s total expense ratio slightly below the median of its total peer group. When total expenses were compared using the Funds’ expense ratios for the six-months ended June 30, 2006, both Funds had total expense ratios in the bottom half of their peer group, based upon Lipper information. The Board also considered each Fund’s advisory fee rates as compared to fees charged by the Adviser for similarly managed institutional accounts. With respect to institutional accounts, the Board noted that (i) both the mix of services provided and the level of responsibility required under the Agreement were significantly greater as compared to the Adviser’s obligations for similarly managed institutional accounts; and

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(ii) the advisory fees of institutional accounts are less relevant to the Board’s consideration because they reflect significantly different competitive forces than those in the mutual fund marketplace. In considering the reasonableness of the expense ratio, the Board took into account the Adviser’s aggressive growth style, which resulted in high portfolio turnover, and relatively small amount of assets under management, while noting that recent increases in assets had reduced the Funds’ expense ratios. The Board also noted that the Adviser’s directed brokerage program had resulted in reducing expenses of the Funds.

     The Board noted that the Adviser had agreed to institute breakpoints in its advisory fee schedule for DIDF, since DIDF has significantly higher capacity than DEMG, which would reduce the advisory fee rate payable by that Fund. On the basis of the information provided, the Board concluded that the advisory fee schedule for each Fund was reasonable and appropriate in light of the quality of services provided by the Adviser.

     Profitability. The Board reviewed information regarding revenues received by the Adviser under the Agreement. The Board considered the estimated costs to the Adviser of managing the Funds. The Board reviewed the Adviser’s methodology in allocating its costs to the management of the Funds. The Board noted the inherently subjective nature of any allocation methodology, but concluded that the methodology presented was not unreasonable. The Board noted that, based on the information provided, the Adviser anticipates moderate profit from providing services to the Funds, which the Board determined to be not unreasonable.

     Economies of Scale. The Board considered whether there are economies of scale with respect to the management of the Funds and whether the Funds benefit from any economies of scale. The Board considered whether the advisory fee rate under the Agreement is reasonable in relation to the asset size of each Fund and whether any economies of scale should result in a reduction in the fee schedule, noting that instituting two breakpoints in DIDF’s advisory fee schedule would reflect economies of scale as assets grow in that Fund. The Board accepted the Adviser’s conclusion that it has not yet experienced any economies of scale in connection with its services to DEMG.

     Other Benefits to the Advisor and its Affiliates. The Board also considered the character and amount of other incidental benefits received by the Adviser and its affiliates, including fees received by an affiliate of the Adviser for brokerage services. The Board also considered benefits to the Adviser related to soft dollar allocations. The Board concluded that advisory fees were reasonable in light of these fall-out benefits.

     Based on all of the information considered and the conclusions reached, the Board determined that the terms of the Agreement continue to be fair and reasonable and that the continuation of the Agreement is in the best interests of each Fund. No single factor was determinative in the Board’s analysis.

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Item 2. Code of Ethics.
  (a)   The registrant, as of the end of the period covered by this report, has adopted a code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party.
 
  (b)   No response required.
 
  (c)   None.
 
  (d)   None.
 
  (e)   Not applicable
 
  (f)   The registrant’s Code of Ethics for Principal Executive and Principal Financial Officers was filed as Exhibit 10(a)(1) to the registrant’s Certified Shareholder Report on Form N-CSR, File No. 811-07655, on March 8, 2004, and is incorporated herein by reference.
Item 3. Audit Committee Financial Expert.
The registrant’s Board of Trustees has designated A.R. Umans as an audit committee financial expert. Mr. Umans is “independent,” as defined by this Item 3.
Item 4. Principal Accountant Fees and Services.
(a) Audit Fees
For the fiscal years ended December 31, 2006 and 2005, Ernst & Young LLP, the registrant’s principal accountant (“E&Y”), billed the registrant $72,000 and $54,000, respectively, for professional services rendered for the audit of the registrant’s annual financial statements or services that are normally provided in connection with statutory and regulatory filings.
(b) Audit-Related Fees
For the fiscal years ended December 31, 2006 and 2005, E&Y billed the registrant $0 and $0, respectively, for assurance and related services that are reasonably related to the performance of the audit of the registrant’s financial statements and that are not reported above.
For engagements that Driehaus Capital Management LLC, the registrant’s investment adviser (“DCM”), or Driehaus Securities LLC, the registrant’s distributor (“DS”), entered into with E&Y for fiscal years 2006 and 2005, E&Y provided no audit-related services to DCM or DS that were for engagements directly related to the registrant’s operations and financial reporting.

 


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(c) Tax Fees
For the fiscal years ended December 31, 2006 and 2005, E&Y billed the registrant $12,750 and $8,400, respectively, for professional services rendered for tax compliance, tax advice and tax planning. Such services consisted of review of the registrant’s income tax returns and tax distribution requirements. The Audit Committee pre-approved all tax services that E&Y provided to the registrant.
For fiscal years 2006 and 2005, E&Y provided no tax services to DCM or DS that were for engagements directly related to the registrant’s operations and financial reporting.
(d) All Other Fees
For the fiscal years ended December 31, 2006 and 2005, E&Y billed the registrant $0 and $0, respectively, for products and services provided, other than the services reported above.
For fiscal years 2006 and 2005, E&Y provided no other services to DCM or DS that were for engagements directly related to the registrant’s operations and financial reporting.
          (e)(1) Audit Committee Pre-Approval Policies and Procedures
Pursuant to registrant’s Audit Committee Charter (the “Charter”), the Audit Committee is responsible for pre-approving any engagement of the principal accountant to provide non-prohibited services to the registrant, including the fees and other compensation to be paid to the principal accountant, to the extent required by Rule 2-01(c)(7) of Regulation S-X. The Chairman of the Audit Committee may grant pre-approval for engagements of $5,000 or less. All such delegated pre-approvals will be presented to the Audit Committee no later than the next Audit Committee meeting.
Pursuant to the Charter, the Audit Committee is also responsible for pre-approving any engagement of the principal accountant, including the fees and other compensation to be paid to the principal accountant, to provide non-audit services to the registrant’s investment adviser (or any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant), if the engagement relates directly to the operations and financial reporting of the registrant, to the extent required by Rule 2-01(c)(7) of Regulation S-X. The Chairman of the Audit Committee may grant pre-approval for engagements of $5,000 or less. All such delegated pre-approvals will be presented to the Audit Committee no later than the next Audit Committee meeting.
  (e)(2)   The percentage of services described in each of paragraphs (b) through (d) of this Item that were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X is 100%.
 
  (f)   The percentage of hours expended on the principal accountant’s engagement to audit the registrant’s financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant’s full-time, permanent employees was less than fifty percent.
 
  (g)   Non-Audit Fees
For the fiscal years ended December 31, 2006 and 2005, E&Y billed the registrant $12,750 and $8,400, respectively, in aggregate non-audit fees. For the fiscal years ended December 31, 2006 and 2005, E&Y billed DCM or DS $0 and $0, respectively, in aggregate non-audit fees.

 


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  (h)   The registrant’s audit committee of the board of directors has considered whether the provision of non-audit services that were rendered to DCM or DS that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant’s independence. There were no such non-audit services provided.
Item 5. Audit Committee of Listed registrants.
Not applicable.
Item 6. Schedule of Investments.
Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period is included as part of the Report to Shareholders filed under Item 1 of this form.
Item 7.   Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.
Not applicable.
Item 8. Portfolio Managers of Closed-End Management Investment Companies.
Not applicable.
Item 9.   Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.
Not applicable.
Item 10. Submission of Matters to a Vote of Security Holders.
There have been no material changes to the procedures by which the shareholders may recommend nominees to the registrant’s board of directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-K (17 CFR 229.407) (as required by Item 22(b)(15) of Schedule 14A (17 CFR 240.14a-101)), or this Item.

 


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Item 11. Controls and Procedures.
  (a)   The registrant’s principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”) (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on their evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rules 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934, as amended (17 CFR 240.13a-15(b) or 240.15d-15(b)).
 
  (b)   There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant’s second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.
Item 12. Exhibits.
  (a)(1)   Code of ethics, that is the subject of disclosure required by Item 2, filed as Exhibit 10(a)(1) to the Registrant’s Form N-CSR, filed on March 8, 2004 (Accession No. 0000950137-04-001539).
 
  (a)(2)   Certifications pursuant to Rule 30a-2(a) under the 1940 Act and Section 302 of the Sarbanes-Oxley Act of 2002 are attached hereto.
 
  (a)(3)   Not applicable.
 
  (b)   Certifications pursuant to Rule 30a-2(b) under the 1940 Act and Section 906 of the Sarbanes-Oxley Act of 2002 are attached hereto.

 


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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
         
(registrant)
  Driehaus Mutual Funds
 
   
         
By (Signature and Title)*
            /s/Richard H. Driehaus
 
   
 
       Richard H. Driehaus, President    
 
       (principal executive officer)    
         
Date
  March 5, 2007
 
   
Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
         
By (Signature and Title)*
            /s/Richard H. Driehaus
 
   
 
       Richard H. Driehaus, President    
 
       (principal executive officer)    
         
Date
  March 5, 2007
 
   
         
By (Signature and Title)*
            /s/Michelle L. Cahoon
 
   
 
       Michelle L. Cahoon, Vice President and Treasurer    
 
       (principal financial officer)    
         
Date
  March 5, 2007
 
   
 
    * Print the name and title of each signing officer under his or her signature.