| A | Agilent Technologies Inc. | AHR | Anthracite Capital, Inc. | APWR | A-Power Energy |
| AA | Alcoa, Inc. | AHS | AMN Healthcare Services Inc. | APX | BlackRock Apex Municipal Fund Inc. |
| AAC | Ableauctions.com Inc. | AHT | Ashford Hospitality Trust Inc. | APY | Aspyra Inc. |
| AACC | Asset Acceptance Capital Corp. | AHY | SafetyFrstTrstPrplPrtdTrCtfsLkdS&P500Idx | AQD | SEK Aclrtd Rtrn Nt Lkd to S&P 500 Idx |
| AAI | AirTran Holdings Inc. | AI | Arlington Asset Investment Corp. | AQQ | American Spectrum Realty Inc. |
| AAME | Atlantic American Corp. | AIA | iShares S&P Asia 50 Index Fund | AQS | Adelante Shares RE Shelter |
| AAN | Aaron's, Inc. | AIB | Allied Irish Banks plc | ARA | Aracruz Celulose S.A. |
| AANB | Abigail Adams National Bancorp Inc. | AIG | American International Group, Inc. | ARAY | Accuray Incorporated |
| AAON | AAON Inc. | AIM | Aerosonic Corp. | ARB | Arbitron Inc. |
| AAP | Advance Auto Parts Inc. | AIMC | Altra Holdings, Inc. | ARBA | Ariba Inc. |
| AAPL | Apple Inc. | AIN | Albany International Corp. | ARBX | Arbinet Corporation |
| AAR | AMR Corp 7.875% Pines 2039 | AINV | Apollo Investment Corporation | ARBXD | Arbinet Corp |
| AATI | Advanced Analogic Technologies, Inc. | AIP | Hadera Paper Ltd. | ARCC | Ares Capital Corporation |
| AAU | Almaden Minerals Ltd. | AIPC | American Italian Pasta Co. | ARCI | Appliance Recycling Centers of America Inc. |
| AAUK | Anglo Amer | AIQ | Alliance Healthcare Services, Inc. | ARCL | Archipelago Learning Inc |
| AAV | Advantage Energy Income Fund | AIR | AAR Corp. | ARCW | ARC Wireless Solutions Inc. |
| AAWW | Atlas Air Worldwide Holdings Inc. | AIRM | Air Methods Corp. | ARD | Arena Resources Inc. |
| AAXJ | iShares MSCI All Cntry Asia Ex Japan | AIRT | Air T Inc. | ARDNA | Arden Group Inc. |
| AB | AllianceBernstein Holding L.P. | AIRV | Airvana, Inc. | ARE | Alexandria Real Estate Equities Inc. |
| ABA | ALABAMA PWR SER JJ | AIS | Antares Pharma Inc. | AREX | Approach Resources, Inc. |
| ABAT | Advanced Battery Technologies Inc. | AIT | Applied Industrial Technologies, Inc. | ARG | Airgas Inc. |
| ABAX | Abaxis Inc. | AIV | Apartment Investment & Management Co. | ARGN | Amerigon Inc. |
| ABB | ABB Ltd. | AIXG | Aixtron Aktienge | ARI | APOLLO COMMERCIAL RE FIN INC |
| ABBC | Abington Bancorp Inc. | AIZ | Assurant Inc. | ARIA | Ariad Pharmaceuticals Inc. |
| ABC | AmerisourceBergen Corporation | AJG | Arthur J Gallagher & Co. | ARII | American Railcar Industries |
| ABCB | Ameris Bancorp | AKAM | Akamai Technologies Inc. | ARJ | Arch Chemicals Inc. |
| ABCD | Cambium Learning Group Inc | AKE | St Spx Sx Nk Sbr | ARK | BlackRock Senior High Income Fund, Inc. |
| ABCO | Advisory Board Co. | AKF | AMBAC FINCL GRP 5.95 DEBS 2103 C | ARKR | Ark Restaurants Corp. |
| ABCW | Anchor BanCorp Wisconsin, Inc. | AKN | Safety FstTr PriPrtTr CrtLi US EuJap Bsk | ARL | American Realty Investors Inc. |
| ABD | ACCO Brands Corporation | AKNS | Akeena Solar, Inc. | ARLP | Alliance Resource Partners LP |
| ABFS | Arkansas Best Corp. | AKOA | Embotelladora Andina S.A. | ARM | ArvinMeritor Inc. |
| ABG | Asbury Automotive Group, Inc. | AKOB | Embotelladora Andina Series B | ARMH | Arm Holdings |
| ABH | Abitibibowater Inc | AKP | Alliance California Municipal Income Fund Inc. | ARNA | Arena Pharmaceuticals, Inc. |
| ABII | Abraxis BioScience, Inc. | AKR | Acadia Realty Trust | ARO | Aeropostale Inc. |
| ABIO | ARCA biopharma, Inc. | AKRX | Akorn Inc. | AROW | Arrow Financial Corporation |
| ABK | Ambac Financial Group, Inc. | AKS | AK Steel Holding Corp. | ARP | American Reprographics Co. |
| ABL | American Biltrite Inc. | AKT | AMBAC FINANCIAL | ARQL | ArQule Inc. |
| ABM | ABM Industries Inc. | ALAN | Alanco Technologies Inc. | ARR | Armour Resd Reit |
| ABMC | American Bio Medica Corp. | ALB | Albemarle Corp. | ARRS | Arris Group Inc. |
| ABMD | Abiomed Inc. | ALC | Assisted Living Concepts Inc. | ARRY | Array BioPharma, Inc. |
| ABR | Arbor Realty Trust Inc. | ALCO | Alico Inc. | ARSD | Arabian American Development Company |
| ABT | Abbott Laboratories | ALD | Allied Capital Corporation | ARST | ArcSight, Inc. |
| ABTL | Autobytel Inc. | ALDA | Aldila Inc. | ART | ARTIO GLOBAL INVESTORS INC |
| ABV | Companhia de Bebidas Das Americas (AMBEV) | ALE | ALLETE Inc. | ARTG | Art Technology Group Inc. |
| ABVA | Alliance Bankshares Corporation | ALEX | Alexander & Baldwin, Inc. | ARTL | Aristotle Corp. |
| ABVC | COMPANHIA DE BEBIDAS DAS AME | ALF | ALABAMA PWR 5.625 SER AA | ARTLP | ARISTOTLE CP PR |
| ABVT | Abovenet Inc. | ALG | Alamo Group Inc. | ARTNA | Artesian Resources Corp. |
| ABX | Barrick Gold Corporation | ALGN | Align Technology Inc. | ARTW | Art's-Way Manufacturing Co. Inc. |
| ABY | SEK Aclrtd Rtrn Br Nt Lnkd to S&P 500Idx | ALGT | Allegiant Travel Company | ARTX | Arotech Corp. |
| ACAD | ACADIA Pharmaceuticals, Inc. | ALIM | Alimera Sciences | ARUN | Aruba Networks, Inc. |
| ACAP | American Physicians Capital, Inc. | ALJ | Alon USA Energy, Inc. | ARW | Arrow Electronics, Inc. |
| ACAS | American Capital, Ltd. | ALK | Alaska Air Group Inc. | ARWR | Arrowhead Research Corp. |
| ACAT | Arctic Cat Inc. | ALKS | Alkermes, Inc. | ARYX | ARYx Therapeutics, Inc. |
| ACC | American Campus Communities Inc. | ALL | Allstate Corp. | ASA | ASA Limited |
| ACCL | Accelrys Inc. | ALLB | Alliance Bancorp Inc of Pennsylvania | ASB | AdvanSource Biomaterials Corporation |
| ACE | ACE Limited | ALLI | Allion Healthcare, Inc. | ASBC | Associated Banc-Corp |
| ACET | Aceto Corp. | ALLT | Allot Communications Ltd. | ASBI | Ameriana Bancorp |
| ACF | AmeriCredit Corp. | ALM | ALABAMA POWER CO. SERIES | ASCA | Ameristar Casinos Inc. |
| ACFC | Atlantic Coast Federal Corporation | ALN | AMERICAN LORAIN CORP | ASCMA | Ascent Media Corp |
| ACFN | Acorn Energy, Inc. | ALNC | Alliance Financial Corporation | ASEI | American Science & Engineering Inc. |
| ACG | AllianceBernstein Income Fund, Inc. | ALNY | Alnylam Pharmaceuticals, Inc. | ASF | Administaff Inc. |
| ACGL | Arch Capital Group Ltd. | ALO | Bk Am Cp Ac Rtrn Nts Lkd S&P 500 Ix | ASFI | Asta Funding Inc. |
| ACGY | Acergy Adr | ALOG | Analogic Corporation | ASFN | Atlantic Southern Financial Group, Inc. |
| ACH | Aluminum Corporation Of China Limited | ALOT | Astro-Med Inc. | ASG | Liberty All Star Growth Fund Inc. |
| ACHN | Achillion Pharmaceuticals, Inc. | ALOY | Alloy Inc. | ASGN | On Assignment Inc. |
| ACI | Arch Coal Inc. | ALQ | Alabama Power Co | ASGR | America Service Group Inc. |
| ACIW | ACI Worldwide, Inc. | ALRN | Amer Claims Evaluation | ASH | Ashland Inc. |
| ACK | Adelante Shares RE Classics | ALSK | Alaska Communications Systems Group Inc. | ASI | American Safety Insurance Holdings Ltd. |
| ACL | Alcon Inc. | ALT | iShares Diversified Alternatives Trust | ASIA | AsiaInfo Holdings Inc. |
| ACLI | American Commercial Lines Inc. | ALTE | Alterra Cap Hold | ASMI | ASM International NV |
| ACLID | ALTH | Allos Therapeutics, Inc. | ASML | ASML Holding | |
| ACLS | Axcelis Technologies Inc. | ALTI | Altair Nanotechnologies, Inc. | ASO | AirShares EU Carbon Allowances Fund |
| ACM | AECOM Technology Corporation | ALTR | Altera Corp. | ASP | American Strategic Income Portfolio Inc. |
| ACMR | AC Moore Arts & Crafts Inc. | ALTU | Altus Pharmaceuticals Inc. | ASPM | Aspect Medical Systems, Inc. |
| ACN | Accenture Ltd. | ALU | Alcatel-Lucent | ASPS | Altisource Prtfl |
| ACO | Amcol International Corp. | ALV | Autoliv, Inc. | ASPSV | Altisource Portfolio Solutions |
| ACOM | Ancestry.com Inc | ALVR | Alvarion Ltd. | ASR | Grupo Aeroportuario Del Sureste SA de CV |
| ACOR | Acorda Therapeutics, Inc. | ALX | Alexander's Inc. | ASRV | AmeriServ Financial, Inc. |
| ACPW | Active Power Inc. | ALXA | Alexza Pharmaceuticals Inc. | ASRVP | AmeriServ Finl |
| ACS | Affiliated Computer Services, Inc. | ALXN | Alexion Pharmaceuticals, Inc. | ASTC | Astrotech Corp. |
| ACTG | Acacia Research Corporation | ALY | Allis-Chalmers Energy, Inc. | ASTE | Astec Industries Inc. |
| ACTI | ActivIdentity Corporation | ALZ | Alabama Power Co. | ASTI | Ascent Solar Technologies Inc. |
| ACTL | Actel Corporation | AM | American Greetings Corp. | ASTIZ | Ascent Solar Technologies Inc |
| ACTS | Actions Semiconductor Co., Ltd. | AMAC | American Medical Alert Corp. | ASTM | Aastrom Biosciences, Inc. |
| ACTU | Actuate Corp. | AMAG | AMAG Pharmaceuticals, Inc. | ASTMD | Aastrom Biosci |
| ACU | Acme United Corp. | AMAT | Applied Materials Inc. | ASUR | Asure Software, Inc. |
| ACUR | Acura Pharmaceuticals Inc. | AMB | AMB Property Corp. | ASURD | Asure Software |
| ACV | Alberto-Culver Co. | AMBO | Ambow Education Holding Ltd. | ASX | Advanced Semiconductor Engineering Inc. |
| ACWI | iShares MSCI ACWI Indx Fund | AMCC | Applied Micro Circuits Corp. | ASYS | Amtech Systems Inc. |
| ACWX | iShares MSCI ACWI ex US Indx Fund | AMCE | Amer Claims Evaluation | ATA | Sft Us Euro Japn |
| ACXM | Acxiom Corporation | AMCF | Andatee China Marine Fuel Serv | ATAC | ATC Technology Corporation. |
| ACY | AeroCentury Corp. | AMCN | AirMedia Group Inc. | ATAI | ATA Inc |
| ADAM | ADAM Inc. | AMCS | AMICAS Inc. | ATAX | America First Tax Exempt Investors LP |
| ADAT | Authentidate Holding Corp. | AMD | Advanced Micro Devices Inc. | ATBC | Atlantic Bancgroup Inc. |
| ADBE | Adobe Systems Inc. | AME | Ametek Inc. | ATC | Cycle Country Accessories Corp. |
| ADC | Agree Realty Corp. | AMED | Amedisys Inc. | ATCO | American Technology Corp. |
| ADCT | ADC Telecommunications Inc. | AMEN | Amen Properties | ATE | Advantest Corp. |
| ADEP | Adept Technology Inc. | AMFI | AMCORE Financial, Inc. | ATEA | Astea International Inc. |
| ADES | ADA-ES Inc. | AMG | Affiliated Managers Group Inc. | ATEC | Alphatec Holdings, Inc. |
| ADF | ACM Managed Dollar Income Fund, Inc. | AMGN | Amgen Inc. | ATGN | AltiGen Communications Inc. |
| ADG | Allied Defense Group Inc. | AMIC | American Independence Corp. | ATHN | Athenahealth, Inc. |
| ADGF | Adams Golf Inc. | AMIE | Ambassadors International Inc. | ATHR | Atheros Communications Inc. |
| ADI | Analog Devices Inc. | AMIN | American International Industries Inc. | ATHX | Athersys, Inc. |
| ADJ | Morgan Stanley 8% SPARQS Lkd Intel Corp | AMJ | JP Morgan Alerian MLP ETN | ATI | Allegheny Technologies Inc. |
| ADK | AdCare Health Systems Inc. | AMK | MS Protected Abslt Rtrn Barrier S&P500Ix | ATK | Alliant Techsystems Inc. |
| ADL | AMDL, Inc. | AMKR | Amkor Technology, Inc. | ATLO | Ames National Corporation |
| ADLR | Adolor Corp. | AMLN | Amylin Pharmaceuticals Inc. | ATLS | Atlas America Inc. |
| ADM | Archer-Daniels-Midland Co. | AMM | Sf Tr S&P500 PPC | ATMI | ATMI Inc. |
| ADP | Automatic Data Processing, Inc. | AMMD | American Medical Systems Holdings Inc. | ATML | Atmel Corp. |
| ADPI | American Dental Partners, Inc. | AMN | Ameron International Corporation | ATN | Atlas Energy Resources LLC |
| ADPT | Adaptec Inc. | AMNB | American National Bankshares Inc. | ATNI | Atlantic Tele-Network Inc. |
| ADRA | BLDRS ASIA 50 ADR IDX FD | AMO | ML Acclrtd Rtrn Nts Lkd MSCI EAFE Ix | ATO | Atmos Energy Corp. |
| ADRD | BLDRS DEV MKTS 100 ADR IDX FD | AMOT | Allied Motion Technologies Inc. | ATPG | ATP Oil & Gas Corp. |
| ADRE | BLDRS EMER MKTS 50 ADR IDX FD | AMOV | AMERICA MOVIL SA DE CV A ADS | ATR | AptarGroup, Inc. |
| ADRU | BLDRS EUROPE 100 ADR IDX FD | AMP | Ameriprise Financial Inc. | ATRC | AtriCure, Inc. |
| ADS | Alliance Data Systems Corporation | AMPH | American Physicians Service Group Inc. | ATRI | ATRION Corp. |
| ADSK | Autodesk, Inc. | AMPL | Ampal-American Israel Corp. | ATRM | Aetrium Inc. |
| ADTN | ADTRAN Inc. | AMR | AMR Corporation | ATRN | Atrinsic, Inc. |
| ADUS | Addus HomeCare Corporation | AMRB | American River Bankshares | ATRO | Astronics Corp. |
| ADVNA | Advanta Cp | AMRI | Albany Molecular Research Inc. | ATSC | ATS Corporation |
| ADVNB | Advanta Corp. | AMRN | Amarin Corp | ATSG | Air Transport Services Group, Inc. |
| ADVS | Advent Software, Inc. | AMS | American Shared Hospital Services | ATSI | ATS Medical Inc. |
| ADX | The Adams Express Company | AMSC | American Superconductor Corporation | ATT | AT&T |
| ADY | American Dairy Inc. | AMSF | Amerisafe, Inc. | ATU | Actuant Corporation |
| ADZ | DB Agriculture Short ETN | AMSG | AmSurg Corp. | ATV | Acorn International, Inc. |
| AE | Adams Resources & Energy Inc. | AMSWA | American Software, Inc. | ATVI | Activision Blizzard, Inc. |
| AEA | Advance America, Cash Advance Centers Inc. | AMT | American Tower Corp. | ATW | Atwood Oceanics Inc. |
| AEB | AEGON NV FLTG PERP | AMTC | Ameritrans Capital Corp. | ATX | AT Cross Co. |
| AEC | Associated Estates Realty Corp. | AMTCP | AMERITRANS CAP CORP PFD PRT | ATY | Adelante Shares RE Yield Plus |
| AED | AEGON NV PERP CAP | AMTD | TD AMERITRADE Holding Corporation | AU | AngloGold Ashanti Ltd. |
| AEE | Ameren Corporation | AMTY | Amerityre Corp. | AUBN | Auburn National Bancorporation, Inc. |
| AEF | AEGON N.V. | AMV | Alternative Asset Mngmnt Acqstn Corp | AUDC | AudioCodes Ltd. |
| AEG | Aegon Nv | AMWD | American Woodmark Corp. | AUMN | Golden Minerals Co |
| AEH | AEGON N V 6.375% | AMX | America Movil S.A.B. de C.V. | AUO | AU Optronics Corp. |
| AEHR | Aehr Test Systems | AMY | AB Svensk Ekportkredit | AUTC | Autochina Intl |
| AEIS | Advanced Energy Industries, Inc. | AMZN | Amazon.com Inc. | AUTCU | Autochina In Ut |
| AEL | American Equity Investment Life Holding Co. | AN | AutoNation Inc. | AUTCW | Autochina In |
| AEM | Agnico-Eagle Mines Ltd. | ANAD | Anadigics, Inc. | AUTH | AuthenTec, Inc. |
| AEN | Adeona Pharmaceuticals, Inc. | ANAT | American National Insurance Co. | AUXL | Auxilium Pharmaceuticals Inc. |
| AEO | American Eagle Outfitters Inc. | ANCI | American Caresource Holdings, Inc. | AUY | Yamana Gold, Inc. |
| AEP | American Electric Power Co., Inc. | ANCX | Access National Corp. | AV | AVIVA PLC |
| AEPI | AEP Industries Inc. | ANDE | The Andersons, Inc. | AVA | Avista Corp. |
| AER | AerCap Holdings N.V. | ANDS | Anadys Pharmaceuticals Inc. | AVAV | AeroVironment, Inc. |
| AERG | Applied Energetics, Inc. | ANEN | Anaren Inc. | AVB | Avalonbay Communities Inc. |
| AERT | Advanced Environmental Recycling Technologies, Inc. | ANF | Abercrombie & Fitch Co. | AVCA | Advocat Inc. |
| AES | The AES Corporation | ANGN | Angeion Corp. | AVCT | Avocent Corporation |
| AET | Aetna Inc. | ANGO | AngioDynamics Inc. | AVD | American Vanguard Corp. |
| AETI | American Electric Technologies, Inc | ANH | Anworth Mortgage Asset Corporation | AVEO | AVEO Pharmaceuticals Inc |
| AEV | AEGON NV PERP CAP | ANI | ARN LINKED TO THE EN | AVF | American International Group Inc |
| AEY | ADDvantage Technologies Group Inc. | ANIK | Anika Therapeutics Inc. | AVGN | Avigen Inc. |
| AEZ | American Oil & Gas Inc. | ANLY | Analysts International Corp. | AVGO | Avago Technologies Limited |
| AEZS | Aeterna Zentaris Inc. | ANLYD | Analyt Int Nw Co | AVID | Avid Technology Inc. |
| AF | Astoria Financial Corporation | ANN | AnnTaylor Stores Corp. | AVII | AVI Biopharma, Inc. |
| AFAM | Almost Family Inc. | ANNB | Annapolis Bancorp Inc. | AVK | Advent Claymore Convertible Securities & Income Fund |
| AFB | AllianceBernstein National Municipal Income Fund, Inc | ANO | Anooraq Resources Corporation | AVN | ML 12% STRIDES Linked to Apple Inc |
| AFC | Allied Capital Corp | ANPI | Angiotech Pharma Inc | AVNR | Avanir Pharmaceuticals |
| AFCB | Athens Bancshares Corp | ANR | Alpha Natural Resources, Inc. | AVNW | Aviat Networks |
| AFCE | AFC Enterprises Inc. | ANSS | Ansys, Inc. | AVP | Avon Products Inc. |
| AFE | AMER FINCL GRP 7 1/8 DEBS 2034 | ANSV | Anesiva, Inc. | AVSR | |
| AFF | American International Group Inc | ANSW | Answers Corporation | AVT | Avnet Inc. |
| AFFM | Affirmative Insurance Holdings Inc. | ANTF | Ante4 | AVTR | Avatar Holdings Inc. |
| AFFX | Affymetrix Inc. | ANTH | Anthera Pharmaceuticals Inc | AVX | AVX Corp. |
| AFFY | Affymax, Inc. | ANTP | Phazar Corp. | AVY | Avery Dennison Corporation |
| AFG | American Financial Group Inc. | ANV | Allied Nevada Gold Corp. | AWBC | AmericanWest Bancorporation |
| AFK | MV AFRICA ETF | ANW | Aegean Marine Petroleum Network Inc. | AWC | Alumina Ltd. |
| AFL | AFLAC Inc. | ANX | Adventrx Pharmaceuticals Inc. | AWF | AllianceBernstein Global High Income Fund, Inc. |
| AFN | Alesco Financial Inc. | ANY | MS 14% SPARQS Apple | AWH | Allied World Assurance Company Holdings Ltd. |
| AFO | Safety Nikkei225 | AOA | iShares S&P Aggressive Allocation Fund | AWI | Armstrong World Industries, Inc. |
| AFOP | Alliance Fiber Optic Products Inc. | AOB | American Oriental Bioengineering Inc. | AWIN | |
| AFP | United Capital Corp. | AOC | Aon Corporation | AWK | American Water Works Company, Inc. |
| AFSI | Amtrust Financial Services Inc (NY) | AOD | ALPINE TOTAL DYNAMIC | AWP | Alpine Global Premier Properties Fund |
| AFT | Axesstel Inc. | AOF | MS Prtctd Abslt Rtn Brr Nt Bsd S&P500 Id | AWR | American States Water Company |
| AGA | DB Agriculture Double Short ETN | AOI | Alliance One International, Inc. | AWRE | Aware Inc. |
| AGAM | AGA Medical Holdings Inc | AOK | iShares S&P Conservative Allocation Fund | AWX | Avalon Holdings Corp. |
| AGB | Sf Tr Djia Nk225 | AOM | iShares S&P Moderate Allocation Fund | AXA | AXA |
| AGC | Advent Claymore Glbl Cnvtbl Sec& Incm Fd | AON | Aon Corp | AXAS | Abraxas Petroleum Corp. |
| AGCO | AGCO Corp. | AONE | A123 Systems Inc | AXC | Advanced Tech Acq Corp |
| AGD | ALPINE GLOBAL DYNAMIC DIVIDEND | AOR | iShares S&P Growth Allocation Fund | AXD | |
| AGEN | Antigenics Inc. | AOS | AO Smith Corp. | AXE | Anixter International Inc. |
| AGF | DB Agriculture Long ETN | AOSL | Alpha and Omega Semiconductor L | AXF | AB Svnsk Ekprtkrdt Acclrtd Rt Nt Lkd S&P |
| AGG | ISHARES LEHMAN AGGREGATE BD FD | AP | Ampco-Pittsburgh Corp. | AXFN | MSCI ACWI ex US Financials Sector Index |
| AGII | Argo Group International Holdings, Ltd. | APA | Apache Corp. | AXG | Atlas Acquisition Holdings Corp |
| AGL | AGL Resources Inc. | APAB | Appalachian Bancshares Inc. | AXK | Accelr8 Technology Corp. |
| AGM | Federal Agricultural Mortgage Corp. | APAC | APAC Customer Services Inc. | AXL | American Axle & Manufacturing Holdings Inc. |
| AGMA | Fed Agricultural Mtg Cl A | APAGF | Apco Argentina Inc | AXN | Aoxing Pharmaceutical Company |
| AGN | Allergan Inc. | APB | Asia Pacific Fund Inc. | AXP | American Express Company |
| AGNC | American Capital Agency Corp. | APC | Anadarko Petroleum Corp. | AXR | AMREP Corp. |
| AGO | Assured Guaranty Ltd. | APCVZ | Fresenius Kabi Pharmaceuticals Hldng Inc | AXS | Axis Capital Holdings Ltd. |
| AGP | AMERIGROUP Corp. | APD | Air Products & Chemicals Inc. | AXT | ML & Co Inc Cpd LvgdIdxRtrnNtsS&P500Idx |
| AGQ | ProShares Ultra Silver | APEI | American Public Education, Inc. | AXTI | AXT Inc. |
| AGR | Swdsh Exp Cr Ac Rtrn Nts Lkd Rs l2000 Ix | APF | MSDW Asia Fund | AXU | Alexco Resource Corporation |
| AGT | Apollo Gold Corp. | APFC | American Pacific Corp. | AXYS | Axsys Technologies, Inc. |
| AGU | Agrium Inc. | APH | Amphenol Corporation | AYA | |
| AGV | Adelante Shares RE Growth | API | Advanced Photonix Inc. | AYE | Allegheny Energy Inc. |
| AGX | Argan, Inc. | APKT | Acme Packet, Inc. | AYI | Acuity Brands, Inc. |
| AGYS | Agilysys Inc. | APL | Atlas Pipeline Partners LP | AYN | Alliance New York Municipal Income Fund Inc. |
| AGZ | iShares Barclays Agency Bond Fund | APO | American Community Properties Trust | AYR | Aircastle LTD |
| AH | Accretive Health Inc | APOG | Apogee Enterprises Inc. | AYT | Barclays GEMS Asia-8 |
| AHB | Sf Tr Spx Sx Sbr | APOL | Apollo Group Inc. | AZ | ALLIANZ Se |
| AHC | A. H. Belo Corporation | APP | American Apparel, Inc. | AZC | Augusta Resource Corp. |
| AHCI | Allied Healthcare International Inc. | APPA | AP Pharma Inc. | AZK | Aurizon Mines Ltd. |
| AHD | ATLAS PIPELNE HLDING | APPY | AspenBio Pharma Inc. | AZM | Allianz SE |
| AHGP | Alliance Holdings Gp, L.P. | APSA | Alto Palermo S.A. | AZN | AstraZeneca plc |
| AHII | Animal Health International, Inc. | APSG | Applied Signal Technology, Inc. | AZO | AutoZone Inc. |
| AHL | Aspen Insurance Holdings Ltd. | APT | Alpha Pro Tech Ltd. | AZP | Sf Tr Spx Sx Nky |
| AHPI | Allied Healthcare Products Inc. | APU | AmeriGas Partners LP | AZZ | AZZ incorporated |
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