| Company Name |
Symbol |
| Alloy, Inc. |
ALOY |
| Allscripts-Misys Healthcare Solutions, Inc. |
MDRX |
| Almost Family Inc |
AFAM |
| Alnylam Pharmaceuticals, Inc. |
ALNY |
| Alphatec Holdings, Inc. |
ATEC |
| Altair Nanotechnologies Inc. |
ALTI |
| Altera Corporation |
ALTR |
| Altisource Portfolio Solutions S.A. |
ASPS |
| Alto Palermo S.A. |
APSA |
| Altra Holdings, Inc. |
AIMC |
| Alvarion Ltd. |
ALVR |
| AMAG Pharmaceuticals, Inc. |
AMAG |
| Amarin Corporation PLC |
AMRN |
| Amazon.com, Inc. |
AMZN |
| Ambassadors Group, Inc. |
EPAX |
| Ambassadors International, Inc. |
AMIE |
| Amcore Financial, Inc. |
AMFI |
| Amedisys Inc |
AMED |
| Amerco |
UHAL |
| Ameriana Bancorp |
ASBI |
| America First Tax Exempt Investors, L.P. |
ATAX |
| America Movil, S.A.B. de C.V. |
AMOV |
| America Service Group Inc. |
ASGR |
| America's Car-Mart, Inc. |
CRMT |
| American Capital Agency Corp. |
AGNC |
| American Capital, Ltd. |
ACAS |
| American Caresource Holdings Inc |
ANCI |
| American Claims Evaluation, Inc. |
AMCE |
| American Commercial Lines Inc |
ACLI |
| American Dental Partners, Inc. |
ADPI |
| American Electric Technologies, Inc. |
AETI |
| American Independence Corp. |
AMIC |
| American International Industries Inc |
AMIN |
| American Italian Pasta Company |
AIPC |
| American Medical Alert Corp. |
AMAC |
| American Medical Systems Holdings, Inc. |
AMMD |
| American National Bankshares, Inc. |
AMNB |
| American National Insurance Company |
ANAT |
| American Pacific Corporation |
APFC |
| American Physicians Capital, Inc. |
ACAP |
| American Physicians Service Group, Inc. |
AMPH |
| American Public Education, Inc. |
APEI |
| American Railcar Industries, Inc. |
ARII |
| American River Bankshares |
AMRB |
| American Science and Engineering, Inc. |
ASEI |
| American Software, Inc. |
AMSWA |
| American Superconductor Corporation |
AMSC |
| American Technology Corporation |
ATCO |
| American Woodmark Corporation |
AMWD |
| Amerigon Incorporated |
ARGN |
| Ameris Bancorp |
ABCB |
| AMERISAFE, Inc. |
AMSF |
| AmeriServ Financial Inc. |
ASRV |
| Ameristar Casinos, Inc. |
ASCA |
| Ameritrans Capital Corporation |
AMTC |
| Ames National Corporation |
ATLO |
| Amgen Inc. |
AMGN |
| AMICAS, Inc. |
AMCS |
| Amicus Therapeutics, Inc. |
FOLD |
| Amkor Technology, Inc. |
AMKR |
| Ampal-American Israel Corporation |
AMPL |
| Amsurg Corp. |
AMSG |
| Amtech Systems, Inc. |
ASYS |
| AmTrust Financial Services, Inc. |
AFSI |
| Amylin Pharmaceuticals, Inc. |
AMLN |
| ANADIGICS, Inc. |
ANAD |
| Anadys Pharmaceuticals, Inc. |
ANDS |
| Analogic Corporation |
ALOG |
| Analysts International Corporation |
ANLYD |
| Anaren, Inc. |
ANEN |
| Ancestry.com, Inc. |
ACOM |
| Anchor BanCorp Wisconsin Inc. |
ABCW |
| Andatee China Marine Fuel Services Corporation |
AMCF |
| Angeion Corporation |
ANGN |
| AngioDynamics, Inc. |
ANGO |
| Angiotech Pharmaceuticals, Inc. |
ANPI |
| Anika Therapeutics Inc. |
ANIK |
| Animal Health International, Inc. |
AHII |
| Annapolis Bancorp Inc. |
ANNB |
| Answers Corporation |
ANSW |
| ANSYS, Inc. |
ANSS |
| Anthera Pharmaceuticals, Inc. |
ANTH |
| Antigenics Inc. |
AGEN |
| APAC Customer Services, Inc. |
APAC |
| Apco Oil and Gas International Inc. |
APAGF |
| Apogee Enterprises, Inc. |
APOG |
| Apollo Group, Inc. |
APOL |
| Apple Inc. |
AAPL |
| Appliance Recycling Centers of America, Inc. |
ARCI |
| Applied Energetics, Inc |
AERG |
| Applied Materials, Inc. |
AMAT |
| Applied Micro Circuits Corporation |
AMCC |
| Applied Signal Technology, Inc. |
APSG |
| Approach Resources Inc. |
AREX |
| Arabian American Development Company |
ARSD |
| Arbinet Corporation |
ARBX |
| Arc Sight, Inc. |
ARST |
| Arc Wireless Solutions, Inc. |
ARCW |
| ARCA biopharma, Inc. |
ABIO |
| Arch Capital Group Ltd. |
ACGL |
