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Companies: A

A-Power Energy Generation Systems, Ltd. - APWR

A.C. Moore Arts & Crafts, Inc. - ACMR

A.D.A.M. Inc. - ADAM

A.P. Pharma, Inc. - APPA

AAON, Inc. - AAON

Aastrom Biosciences, Inc. - ASTM

ABAXIS, Inc. - ABAX

Abigail Adams National Bancorp, Inc. - AANB

Abington Bancorp, Inc. - ABBC

ABIOMED, Inc. - ABMD

Abraxas Petroleum Corporation - AXAS

Abraxis Bioscience Inc. - ABII

Acacia Research Corporation - ACTG

ACADIA Pharmaceuticals Inc. - ACAD

Accelrys, Inc. - ACCL

Access National Corporation - ANCX

Access Plans USA, Inc. - AUSA

Accuray Incorporated - ARAY

Acergy S.A. - ACGY

Aceto Corporation - ACET

Achillion Pharmaceuticals, Inc. - ACHN

ACI Worldwide, Inc. - ACIW

Acme Packet, Inc. - APKT

Acorda Therapeutics, Inc. - ACOR

Acorn Energy, Inc. - ACFN

Actel Corporation - ACTL

Action Products International, Inc. - APII

Actions Semiconductor Co., Ltd. - ACTS

Active Power, Inc. - ACPW

ActivIdentity Corporation - ACTI

Activision Blizzard, Inc - ATVI

Actuate Corporation - ACTU

Acura Pharmaceuticals, Inc. - ACUR

Acxiom Corporation - ACXM

ADA-ES, Inc. - ADES

Adams Golf, Inc. - ADGF

Adaptec, Inc. - ADPT

ADC Telecommunications, Inc. - ADCT

ADDvantage Technologies Group, Inc. - AEY

Adept Technology, Inc. - ADEP

Adobe Systems Incorporated - ADBE

Adolor Corporation - ADLR

ADTRAN, Inc. - ADTN

Advanced Analogic Technologies, Inc. - AATI

Advanced Battery Technologies, Inc. - ABAT

Advanced Energy Industries, Inc. - AEIS

Advanced Environmental Recycling Technologies, Inc. - AERT

Advanced Life Sciences Holdings, Inc. - ADLS

ADVANTA Corp. - ADVNA

ADVANTA Corp. - ADVNB

Advent Software, Inc. - ADVS

Advocat, Inc. - AVCA

Aehr Test Systems - AEHR

AEP Industries Inc. - AEPI

AeroGrow International, Inc. - AERO

AeroVironment, Inc. - AVAV

AEterna Zentaris, Inc. - AEZS

Aetrium Incorporated - ATRM

AFC Enterprises, Inc. - AFCE

Affirmative Insurance Holdings, Inc. - AFFM

Affymax, Inc. - AFFY

Affymetrix, Inc. - AFFX

Agilysys, Inc. - AGYS

Air Methods Corporation - AIRM

Air T, Inc. - AIRT

Air Transport Services Group, Inc - ATSG

AirMedia Group Inc - AMCN

Airspan Networks Inc. - AIRN

Airvana, Inc. - AIRV

Aixtron Aktiengesellschaft - AIXG

Akamai Technologies, Inc. - AKAM

Akeena Solar, Inc. - AKNS

Akorn, Inc. - AKRX

Alabama Aircraft Industries, Inc. - AAII

Aladdin Knowledge Systems Limited - ALDN

Alanco Technologies Inc. - ALAN

Alaska Communications Systems Group, Inc. - ALSK

Albany Molecular Research, Inc. - AMRI

Aldila, Inc. - ALDA

Alexion Pharmaceuticals, Inc. - ALXN

Alexza Pharmaceuticals, Inc. - ALXA

Alico, Inc. - ALCO

Align Technology, Inc. - ALGN

Alkermes, Inc. - ALKS

Allegiant Travel Company - ALGT

Alliance Bancorp, Inc. of Pennsylvania - ALLB

Alliance Bankshares Corporation - ABVA

Alliance Fiber Optic Products, Inc. - AFOP

Alliance Financial Corporation - ALNC

Alliance Holdings GP, L.P. - AHGP

Alliance Resource Partners, L.P. - ARLP

Allied HealthCare International Inc. - AHCI

Allied Healthcare Products, Inc. - AHPI

Allied Motion Technologies, Inc. - AMOT

Allion Healthcare, Inc. - ALLI

Allos Therapeutics, Inc. - ALTH

Allot Communications Ltd. - ALLT

Alloy, Inc. - ALOY

Almost Family Inc - AFAM

Alnylam Pharmaceuticals, Inc. - ALNY

Alphatec Holdings, Inc. - ATEC

Alseres Pharmaceuticals, Inc. - ALSE

Alsius Corporation - ALUS

Alsius Corporation - ALUSU

Alsius Corporation - ALUSW

Altair Nanotechnologies Inc. - ALTI

Altera Corporation - ALTR

AltiGen Communications, Inc. - ATGN

Alto Palermo S.A. - APSA

Altra Holdings, Inc. - AIMC

Altus Pharmaceuticals Inc. - ALTU

Alvarion Ltd. - ALVR

AMAG Pharmaceuticals, Inc. - AMAG

Amarin Corporation PLC - AMRN

Amazon.com, Inc. - AMZN

Ambassadors International, Inc. - AMIE

Amcore Financial, Inc. - AMFI

Amedisys Inc - AMED

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

American Bancorp of New Jersey, Inc. - ABNJ

American Bio Medica Corp. - ABMC

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 Community Bancshares - ACBA

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

AmericanWest Bancorporation - AWBC

Amerigon Incorporated - ARGN

Ameris Bancorp - ABCB

AMERISAFE, Inc. - AMSF

AmeriServ Financial Inc. - ASRV

AmeriServ Financial Inc. - ASRVP

Ameristar Casinos, Inc. - ASCA

Ameritrans Capital Corporation - AMTC

Ameritrans Capital Corporation - AMTCP

Amerityre Corporation - AMTY

Ames National Corporation - ATLO

Amgen Inc. - AMGN

AMICAS, Inc. - AMCS

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 - ANLY

Anaren, Inc. - ANEN

Anchor BanCorp Wisconsin Inc. - ABCW

Anesiva, Inc. - ANSV

Angeion Corporation - ANGN

AngioDynamics, Inc. - ANGO

Angiotech Pharmaceuticals, Inc. - ANPI

Anglo American plc - AAUK

Anika Therapeutics Inc. - ANIK

Animal Health International, Inc. - AHII

Annapolis Bancorp Inc. - ANNB

Answers Corporation - ANSW

ANSYS, Inc. - ANSS

Antigenics Inc. - AGEN

APAC Customer Services, Inc. - APAC

APCO Argentina Inc. - APAGF

Apogee Enterprises, Inc. - APOG

Apollo Group, Inc. - APOL

Apollo Investment Corporation - AINV

Appalachian Bancshares, Inc. (GA) - APAB

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-thexchange, Inc. - ARBX

Arc Sight, Inc. - ARST

Arc Wireless Solutions, Inc. - ARCW

Arca Biopharma, Inc. - ABIO

Arch Capital Group Ltd. - ACGL

Arctic Cat Inc. - ACAT

Arden Group, Inc. - ARDNA

Arena Pharmaceuticals, Inc. - ARNA

Ares Capital Corporation - ARCC

Argo Group International Holdings Ltd. - AGII

ARIAD Pharmaceuticals, Inc. - ARIA

Ariba, Inc. - ARBA

Ark Restaurants Corp. - ARKR

Arkansas Best Corporation - ABFS

ARM Holdings, plc - ARMH

Arotech Corporation - ARTX

ArQule, Inc. - ARQL

Array BioPharma Inc. - ARRY

Arris Group Inc - ARRS

Arrow Financial Corporation - AROW

Arrowhead Research Corporation - ARWR

Art Technology Group, Inc. - ARTG

Art's-Way Manufacturing Co., Inc. - ARTW

Artesian Resources Corporation - ARTNA

Aruba Networks, Inc. - ARUN

ARYx Therapeutics, Inc. - ARYX

Ascent Media Corporation - ASCMA

Ascent Solar Technologies, Inc. - ASTI

Ascent Solar Technologies, Inc. - ASTIZ

AsiaInfo Holdings, Inc. - ASIA

ASM International N.V. - ASMI

ASML Holding N.V. - ASML

Aspect Medical Systems, Inc. - ASPM

AspenBio Pharma, Inc. - APPY

Asset Acceptance Capital Corp. - AACC

Associated Banc-Corp - ASBC

Asta Funding, Inc. - ASFI

Astea International, Inc. - ATEA

Astec Industries, Inc. - ASTE

Astro-Med, Inc. - ALOT

Astronics Corporation - ATRO

Asyst Technologies, Inc. - ASYT

ATA Inc. - ATAI

ATC Technology Corporation - ATAC

athenahealth, Inc. - ATHN

Atheros Communications, Inc. - ATHR

Athersys, Inc. - ATHX

Atlantic American Corporation - AAME

Atlantic BancGroup Inc - ATBC

Atlantic Coast Federal Corporation - ACFC

Atlantic Southern Financial Group, Inc. - ASFN

Atlantic Tele-Network, Inc. - ATNI

Atlas Air Worldwide Holdings - AAWW

Atlas America, Inc. - ATLS

Atmel Corporation - ATML

ATMI Inc. - ATMI

ATP Oil & Gas Corporation - ATPG

AtriCure, Inc. - ATRC

ATRION Corporation - ATRI

ATS Medical, Inc. - ATSI

Auburn National Bancorporation, Inc. - AUBN

AudioCodes Ltd. - AUDC

AuthenTec, Inc. - AUTH

Authentidate Holding Corp. - ADAT

Autobytel Inc. - ABTL

Autodesk, Inc. - ADSK

Automatic Data Processing, Inc. - ADP

Auxilium Pharmaceuticals, Inc. - AUXL

Avalon Pharmaceuticals, Inc. - AVRX

Avanex Corporation - AVNX

Avanir Pharmaceuticals - AVNR

Avatar Holdings Inc. - AVTR

AVI BioPharma, Inc. - AVII

Avid Technology, Inc. - AVID

Avigen, Inc. - AVGN

Avistar Communications Corporation - AVSR

Aviza Technology, Inc. - AVZA

Avocent Corporation - AVCT

Aware, Inc. - AWRE

Axcelis Technologies, Inc. - ACLS

Axsys Technologies, Inc. - AXYS

AXT Inc - AXTI

BLDRS Asia 50 ADR Index Fund - ADRA

BLDRS Developed Markets 100 ADR Index Fund - ADRD

BLDRS Emerging Markets 50 ADR Index Fund - ADRE

BLDRS Europe 100 ADR Index Fund - ADRU

Cross (A.T.) Company - ATX

Forgent Networks Inc - ASUR

Fresenius Kabi Pharmaceuticals Holding, Inc. - APCVZ

iShares MSCI ACWI ex US Index Fund - ACWX

iShares MSCI ACWI Index Fund - ACWI

iShares MSCI All Country Asia ex Japan Index Fund - AAXJ

On Assignment, Inc. - ASGN

PHAZAR CORP - ANTP

TD Ameritrade Holding Corporation - AMTD

The Advisory Board Company - ABCO

The Andersons, Inc. - ANDE

The Aristotle Corporation - ARTL

The Aristotle Corporation - ARTLP