| L | Loews Corporation | LGND | Ligand Pharmaceuticals Inc. | LOPE | Grand Canyon Education, Inc. |
| LAB | LaBranche & Co. Inc. | LGTY | Logility Inc. | LOR | LAZARD WORLD DIVIDEND & INCOME |
| LABC | Louisiana Bancorp, Inc. | LGVN | LogicVision Inc. | LORL | Loral Space & Communications, Inc. |
| LABL | Multi-Color Corp. | LH | Laboratory Corp. of America Holdings | LOV | Spark Networks, Inc. |
| LACO | Lakes Entertainment Inc. | LHB | Direxion Daily Latin Amrica Bear 3X Shrs | LOW | Lowe's Companies Inc. |
| LAD | Lithia Motors Inc. | LHCG | LHC Group, Inc. | LPHI | Life Partners Holdings Inc. |
| LAG | SPDR LEHMN AGGRT | LHO | LaSalle Hotel Properties | LPL | LG Display Co., Ltd. |
| LAKE | Lakeland Industries Inc. | LIA | Liberty Acquisition Holdings Corp | LPNT | Lifepoint Hospitals Inc. |
| LAMR | Lamar Advertising Co. | LIBHA | LIBERTY HOMES INC ClA | LPS | Lender Processing Services, Inc. |
| LANC | Lancaster Colony Corp. | LIFE | Life Technologies Corporation | LPSB | LaPorte Bancorp Inc |
| LAQ | The Latin America Equity Fund, Inc. | LIHR | Lihir Gold Ltd | LPSN | LivePerson Inc. |
| LARK | Landmark Bancorp Inc. | LII | Lennox International Inc. | LPTH | LightPath Technologies Inc. |
| LATM | Market Vectors Latin America Sml-Cp Ix | LIMC | Limco-Piedmont Inc. | LPX | Louisiana-Pacific Corp. |
| LAVA | Magma Design Automation Inc. | LIME | Lime Energy Co. | LQD | ISHARES IBOXX CP BD |
| LAWS | Lawson Products Inc. | LIMS | Starlims Technologies Ltd | LQDT | Liquidity Services, Inc. |
| LAYN | Layne Christensen Co. | LINC | Lincoln Educational Services Corporation | LRAD | Lrad Corporation |
| LAZ | Lazard Ltd. | LINE | Linn Energy, LLC | LRCX | Lam Research Corporation |
| LB | LaBarge Inc. | LINK | Interlink Electronics | LRN | K12, Inc. |
| LBAI | Lakeland Bancorp Inc. | LINTA | Liberty Media Interactive | LRT | L. L. & E Royalty Trust |
| LBCP | Liberty Bancorp, Inc. | LINTB | LIBERTY MED INT B | LRY | Liberty Property Trust |
| LBF | DWS Global High Income Fund, Inc. | LION | Fidelity Southern Corporation | LSBI | LSB Financial Corp. |
| LBIX | Leading Brands Inc. | LIOX | Lionbridge Technologies Inc. | LSBK | LAKE SHORE BANCORP |
| LBIXD | Leading Brands Inc | LIVE | LiveDeal, Inc. | LSBX | LSB Corp. |
| LBJ | Direxion Daily Latin Amrica Bull 3X Shrs | LIWA | Lihua International | LSC | Elements S&P CTI Indx |
| LBTYA | Liberty Global Inc. | LIZ | Liz Claiborne Inc. | LSCC | Lattice Semiconductor Corporation |
| LBTYB | Liberty Global Inc CL B | LJPC | La Jolla Pharmaceutical Co. | LSE | CapLease, Inc. |
| LBTYK | Liberty Global Inc Com Ser C | LKFN | Lakeland Financial Corp. | LSI | LSI Corporation |
| LBY | Libbey Inc | LKI | Lazare Kaplan International Inc. | LSR | Life Sciences Research, Inc. |
| LCAPA | Liberty Media Capital | LKQX | LKQ Corp. | LSTAV | Liberty Entertainment Inc |
| LCAPB | LIBERTY MED CP B | LL | Lumber Liquidators, Inc. | LSTR | Landstar System Inc. |
| LCAV | LCA-Vision Inc. | LLL | L-3 Communications Holdings Inc. | LSTZA | Liberty Med A |
| LCC | US Airways Group, Inc. | LLNW | Limelight Networks, Inc. | LTBR | Lightbridge Corp |
| LCI | Lannett Co. Inc. | LLTC | Linear Technology Corp. | LTC | LTC Properties Inc. |
| LCM | Advent Claymore Enhanced Growth & Income Fund | LLY | Eli Lilly & Co. | LTD | Limited Brands Inc. |
| LCRD | LaserCard Corporation | LM | Legg Mason Inc. | LTL | ProShares Trust Ultra Telecommnctns |
| LCRY | LeCroy Corp. | LMAT | LeMaitre Vascular, Inc. | LTM | Life Time Fitness Inc. |
| LCUT | Lifetime Brands, Inc. | LMDIA | Liberty Media Corp | LTON | Linktone Ltd. |
| LD | iPath DJ-AIG Lead | LMDIB | Liberty Media Corp | LTPZ | PIMCO 15+ Yr. US TIPS Index Fund |
| LDB | ML Strtgc Ret Nts Lnkd Industril 15 Indx | LMI | Legg Mason Inc Corp | LTRE | Learning Tree International Inc. |
| LDF | Latin American Discovery Fund Inc. | LMIA | LMI Aerospace Inc. | LTRX | Lantronix Inc. |
| LDIS | Leadis Technology Inc. | LMLP | LML Payment Systems Inc. | LTRXD | LANTRONIX INC |
| LDK | LDK Solar Co.Ltd. | LMNX | Luminex Corporation | LTS | Ladenburg Thalmann Financial Services Inc. |
| LDL | Lydall Inc. | LMT | Lockheed Martin Corporation | LTXC | LTX-Credence Corporation |
| LDR | Landauer Inc. | LMZ | BoA Crp Cpd Lvrgd Ix Rtrn Nt Lnkd S&P500 | LUB | Luby's Inc. |
| LDSH | Ladish Co. Inc. | LNBB | LNB Bancorp Inc. | LUFK | Lufkin Industries Inc. |
| LDX | BoA Corp Cpd Lvrgd Ix Rtrn Nts Lkd S&P 5 | LNC | Lincoln National Corp. | LUK | Leucadia National Corp. |
| LEA | LNCE | Lance, Inc. | LULU | Lululemon Athletica Inc. | |
| LEAP | Leap Wireless International Inc. | LNCR | Lincare Holdings Inc. | LUNA | Luna Innovations Incorporated |
| LECO | Lincoln Electric Holdings Inc. | LNDC | Landec Corp. | LUV | Southwest Airlines Co. |
| LEDR | Market Leader, Inc. | LNDU | Merrill Lynch | LUX | Luxottica Group SpA |
| LEE | Lee Enterprises Inc. | LNET | LodgeNet Interactive Corporation | LVB | Steinway Musical Instruments Inc. |
| LEG | Leggett & Platt, Incorporated | LNG | Cheniere Energy, Inc. | LVL | Clymr S&P Gbl |
| LEGC | Legacy Bancorp Inc. | LNN | Lindsay Corporation | LVLT | Level 3 Communications Inc. |
| LEI | Lucas Energy, Inc. | LNT | Alliant Energy Corporation | LVS | Las Vegas Sands Corp. |
| LEN | Lennar Corp. | LNUX | SourceForge, Inc. | LWAY | Lifeway Foods Inc. |
| LENB | LENNAR CP CL B | LNY | Landry's Restaurants Inc. | LWC | SPDR Barclay Cap Long Term Credit Bond |
| LEO | Dreyfus Strategic Municipals Inc | LO | Lorillard, Inc. | LWSN | Lawson Software, Inc. |
| LF | LeapFrog Enterprises Inc. | LOAN | Manhattan Bridge Capital, Inc. | LXK | Lexmark International Inc. |
| LFC | China Life Insurance Co. Ltd. | LOCM | Local.com Corp. | LXP | Lexington Realty Trust |
| LFL | LAN Airlines S.A. | LODG | Sholodge Inc | LXRX | Lexicon Pharmaceuticals, Inc. |
| LFT | Longtop Financial Technologies Limited | LOGC | LOGIC Devices Incorporated | LXU | LSB Industries Inc. |
| LFUS | Littelfuse Inc. | LOGI | Logitech International SA | LYG | Lloyds Banking Group plc |
| LG | Laclede Group Inc. | LOGM | LogMein Inc | LYTS | LSI Industries Inc. |
| LGCY | Legacy Reserves Lp | LOGN | Logansport Fin | LYV | Live Nation, Inc. |
| LGF | Lions Gate Entertainment Corp. | LOJN | LoJack Corp. | LZ | Lubrizol Corp. |
| LGI | Lazard Global Total Return & Income Fund Inc. | LONG | eLong Inc. | LZB | La-Z-Boy Inc. |
| LGL | The LGL Group, Inc. | LOOK | LookSmart, Ltd. | LZR | Emergent Group, Inc. |
| LGN | Lodgian Inc. | LOOP | LoopNet, Inc. |
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