Largest Nasdaq Short Interest vs Free Float as of March 31

The following table ranks companies listed on the Nasdaq Stock Market that have more than 10 percent of their shares available for trading sold short by investors as of the March 31 settlement date.



                               Short Interest   Short Interest  Equity Float 
Ticker  Name                      / Float %     (In mln shrs)   (In mln shrs)
=============================================================================
CCME    CHINA MEDIAEXPRE             73.66         10.32         14.01
RBCN    RUBICON TECHNOLO             51.04          9.46         18.53
ATPG    ATP OIL & GAS                43.57         19.39         44.49
CADX    CADENCE PHARMACE             43.17         14.85         34.39
TSLA    TESLA MOTORS                 42.70         13.16         30.81
PWER    POWER-ONE INC                41.54         34.51         83.09
ZAGG    ZAGG INC                     41.32          6.95         16.83
LPHI    LIFE PARTNERS HO             40.56          3.71          9.15
BBBB    BLACKBOARD INC               39.87         13.25         33.24
ENTR    ENTROPIC COMMUNI             39.59         28.99         73.23
CSTR    COINSTAR INC                 39.07         12.28         31.43
CONN    CONN'S INC                   38.10          6.20         16.28
CCRT    COMPUCREDIT HOLD             37.12          4.70         12.65
CTCT    CONSTANT CONTACT             36.48         10.35         28.36
CALM    CAL-MAINE FOODS              36.03          4.67         12.97
NILE    BLUE NILE INC                35.86          5.16         14.40
CHBT    CHINA-BIOTICS IN             35.71          4.07         11.40
TZOO    TRAVELZOO INC                35.02          1.94          5.54
COCO    CORINTHIAN COLLE             34.31         26.17         76.27
LNET    LODGENET INTERAC             33.97          6.03         17.74
SPWRA   SUNPOWER CORP-A              31.76         16.20         51.00
CLDA    CLINICAL DATA IN             31.66          2.37          7.49
AVNR    AVANIR PHARM INC             31.35         30.03         95.79
MERU    MERU NETWORKS IN             31.33          3.09          9.85
CBEH    CHINA INTEGRATED             31.16          5.47         17.57
OPEN    OPENTABLE INC                30.67          5.40         17.61
REXX    REX ENERGY CORP              30.22          9.74         32.25
HRBN    HARBIN ELECTRIC              30.14          6.07         20.13
SYNA    SYNAPTICS INC                30.00         10.05         33.48
VECO    VEECO INSTRUMENT             29.03         11.65         40.15
SHLD    SEARS HOLDINGS               28.77         10.96         38.09
CLWR    CLEARWIRE -CL A              28.76         48.15        167.41
CIEN    CIENA CORP                   28.22         25.98         92.06
PETS    PETMED EXPRESS               28.17          5.49         19.49
STEC    STEC INC                     27.97         11.42         40.82
JRCC    JAMES RIVER COAL             27.57          8.04         29.16
NTRI    NUTRISYSTEM INC              27.49          6.63         24.10
DMND    DIAMOND FOODS                27.41          5.81         21.20
MBLX    METABOLIX INC                27.37          6.71         24.52
FSLR    FIRST SOLAR INC              27.24         15.92         58.44
ARNA    ARENA PHARMACEUT             27.08         32.52        120.11
ENER    ENERGY CONV DEV              27.01         14.23         52.69
RLOC    REACHLOCAL INC               26.58          2.17          8.16
MNKD    MANNKIND CORP                26.57         22.54         84.85
EHTH    EHEALTH INC                  26.13          5.17         19.78
BRLI    BIO-REFER LABS               25.72          6.34         24.67
EBIX    EBIX INC                     25.59          8.20         32.06
FSYS    FUEL SYSTEMS SOL             25.30          3.38         13.37
PEET    PEETS COFFEE &               25.30          3.25         12.86
QSII    QUALITY SYSTEMS              25.29          4.85         19.16
LOGM    LOGMEIN INC                  25.21          4.71         18.67
SOMX    SOMAXON PHARMACE             25.06         10.13         40.44
ZUMZ    ZUMIEZ INC                   24.59          5.33         21.67
DCTH    DELCATH SYSTEMS              24.51         10.14         41.36
CLNE    CLEAN ENERGY FUE             24.50         11.70         47.75
ECHO    ECHO GLOBAL LOGI             24.16          2.58         10.66
LIWA    LIHUA INTERNATIO             23.89          3.52         14.73
TSTC    TELESTONE TECHNO             23.50          2.12          9.00
WRLD    WORLD ACCEPTANCE             23.41          3.51         15.01
SATC    SATCON TECH                  23.40         21.35         91.25
MAKO    MAKO SURGICAL                23.01          6.63         28.80
SPMD    SUPERMEDIA INC               22.96          3.44         15.00
AMED    AMEDISYS INC                 22.92          6.64         28.98
ALGT    ALLEGIANT TRAVEL             22.87          3.33         14.57
CAGC    CHINA AGRITECH               22.78          2.92         12.80
PFCB    PF CHANG'S CHINA             22.43          5.03         22.43
CREE    CREE INC                     22.35         22.46        100.48
MELA    MELA SCIENCES IN             22.31          5.38         24.10
ROYL    ROYALE ENERGY                21.94          1.63          7.42
DEER    DEER CONSUMER PR             21.72          3.70         17.04
PSUN    PAC SUNWEAR CAL              21.57          9.97         46.23
TRLG    TRUE RELIGION AP             21.33          5.01         23.48
INWK    INNERWORKINGS IN             21.29          7.35         34.51
AMSC    AMER SUPERCONDTR             21.28          8.98         42.21
QNST    QUINSTREET INC               21.23          5.80         27.30
ATHN    ATHENAHEALTH INC             21.13          6.91         32.70
IRDM    IRIDIUM COMMUNIC             21.11          9.65         45.71
NFLX    NETFLIX INC                  21.04         10.49         49.86
CVVT    CHINA VALVES TEC             21.04          4.36         20.71
FFBH    FIRST FED BNCSHS             20.79          0.71          3.40
VVUS    VIVUS INC                    20.71         16.61         80.22
CAST    CHINACAST EDUCAT             20.69          8.48         40.99
ENOC    ENERNOC INC                  20.58          3.80         18.45
SVNT    SAVIENT PHARMACE             20.56         14.38         69.95
CEPH    CEPHALON INC                 20.52         15.32         74.66
QCOR    QUESTCOR PHARM               20.40         10.93         53.58
JBLU    JETBLUE AIRWAYS              20.29         48.67        239.88
PLCE    CHILDRENS PLACE              20.23          4.48         22.12
WTSLA   WET SEAL INC -A              20.20         18.35         90.88
STRA    STRAYER EDUCATIO             20.11          2.59         12.87
GMCR    GREEN MOUNTAIN               20.00         21.55        107.75
MNTA    MOMENTA PHARMACE             19.95          8.49         42.54
BONT    BON-TON STORES               19.80          2.50         12.63
BJRI    BJ'S RESTAURANTS             19.73          4.30         21.79
SAFM    SANDERSON FARMS              19.64          3.67         18.71
VRA     VERA BRADLEY INC             19.38          2.13         11.00
LLEN    L&L ENERGY INC               19.27          4.58         23.78
PRAA    PORTFOLIO RECOVE             19.16          3.20         16.71
CVBF    CVB FINANCIAL                18.79         15.88         84.52
LOGI    LOGITECH INTL-R              18.76         31.15        165.99
OZRK    BANK OZARKS                  18.66          2.61         14.01
OSBC    OLD SECOND BNCRP             18.61          2.19         11.75
JOSB    JOS A BANK CLOTH             18.61          5.08         27.32
YRCW    YRC WORLDWIDE IN             18.60          8.88         47.71
MIPS    MIPS TECH INC                18.58          9.67         52.03
STXS    STEREOTAXIS INC              18.53          6.93         37.38
MOTR    MOTRICITY INC                18.53          5.50         29.68
AUXL    AUXILIUM PHARMAC             18.47          8.80         47.63
CMLS    CUMULUS MEDIA-A              18.42          3.96         21.52
ACOM    ANCESTRY.COM INC             18.36          3.36         18.31
IDCC    INTERDIGITAL INC             18.20          8.09         44.45
SGMO    SANGAMO BIOSCIEN             18.12          7.75         42.80
SMT     SMART TECHNOL-A              18.06          6.68         36.98
OREX    OREXIGEN THERAPE             18.04          6.07         33.66
LOCM    LOCAL.COM CORP               17.90          3.64         20.35
EDMC    EDUCATION MGMT               17.85          4.95         27.73
KITD    KIT DIGITAL INC              17.81          5.58         31.30
CPLA    CAPELLA EDUCATIO             17.76          2.64         14.86
GFRE    GULF RESOURCES I             17.76          3.17         17.83
ACOR    ACORDA THERAPEUT             17.74          6.83         38.53
RNOW    RIGHTNOW TECH                17.73          4.07         22.98
LWAY    LIFEWAY FOODS                17.69          0.82          4.66
KNSY    KENSEY NASH CORP             17.69          1.36          7.67
LBTYA   LIBERTY GLOBAL-A             17.61         18.99        107.83
NUVA    NUVASIVE INC                 17.60          6.95         39.46
CSKI    CHINA SKY ONE ME             17.58          1.81         10.29
PACR    PACER INTL INC               17.20          5.93         34.48
SIGA    SIGA TECH INC                17.18          6.29         36.64
CAVM    CAVIUM NETWORKS              17.16          7.01         40.89
SQNM    SEQUENOM INC                 17.10         16.81         98.33
CNQR    CONCUR TECH INC              17.03          7.41         43.50
GRNB    GREEN BANKSHARES             17.00          1.86         10.96
PODD    INSULET CORP                 16.87          7.27         43.11
RUE     RUE21 INC                    16.85          3.80         22.56
WTFC    WINTRUST FINL                16.84          5.68         33.73
GRMN    GARMIN LTD                   16.80         20.38        121.33
YONG    YONGYE INTERNATI             16.76          6.51         38.85
QDEL    QUIDEL CORP                  16.72          4.81         28.76
RJET    REPUBLIC AIRWAYS             16.50          7.39         44.81
AFFX    AFFYMETRIX INC               16.43         10.29         62.61
HIBB    HIBBETT SPORTS I             16.37          4.45         27.17
BIOD    BIODEL INC                   16.34          3.68         22.51
NTSP    NETSPEND HOLDING             16.34          3.20         19.56
SCHS    SCHOOL SPECIALTY             16.31          2.96         18.13
RRGB    RED ROBIN GOURME             16.30          2.29         14.05
ILMN    ILLUMINA INC                 16.29         20.40        125.22
TAYC    TAYLOR CAPITAL               16.25          1.45          8.92
CSGP    COSTAR GROUP INC             16.22          3.18         19.62
VITC    VITACOST.COM INC             16.09          1.94         12.05
CYTX    CYTORI THERAPEUT             16.03          6.93         43.25
FSIN    FUSHI COPPERWELD             15.96          3.92         24.59
SFLY    SHUTTERFLY INC               15.82          4.03         25.48
ERII    ENERGY RECOVERY              15.71          5.24         33.33
ICUI    ICU MEDICAL                  15.48          1.86         12.05
CAR     AVIS BUDGET GROU             15.43         15.87        102.83
JAKK    JAKKS PACIFIC                15.42          4.06         26.34
CIGX    STAR SCIENTIFIC              15.28         14.57         95.39
CBEY    CBEYOND INC                  15.26          4.49         29.46
CHUX    O'CHARLEYS INC               15.24          3.03         19.91
TTWO    TAKE-TWO INTERAC             15.23         10.83         71.13
STEI    STEWART ENTERP-A             15.22         12.05         79.19
ZOLT    ZOLTEK COS                   15.20          4.21         27.68
TIVO    TIVO INC                     15.19         17.55        115.56
CRWN    CROWN MEDIA HL-A             15.06          3.75         24.93
AONE    A123 SYSTEMS INC             15.04         13.61         90.54
SGEN    SEATTLE GENETICS             14.94         16.46        110.20
RDEA    ARDEA BIOSCIENCE             14.90          2.49         16.70
BAMM    BOOKS-A-MILLION              14.83          0.93          6.25
FRED    FRED'S INC-A                 14.80          5.37         36.25
ENZN    ENZON PHARMACEUT             14.79          6.44         43.56
PACB    PACIFIC BIOSCIEN             14.79          3.06         20.70
VLCM    VOLCOM INC                   14.75          2.65         17.97
UBSI    UNITED BANKSHS               14.75          5.60         37.99
PNSN    PENSON WORLDWIDE             14.71          2.87         19.53
NVTL    NOVATEL WIRELESS             14.64          4.61         31.47
SFSF    SUCCESSFACTORS I             14.63          9.70         66.25
THQI    THQ INC                      14.60          9.80         67.11
CAKE    CHEESECAKE FACTO             14.50          8.11         55.97
NETL    NETLOGIC MICROSY             14.49          8.82         60.89
ABAT    ADVANCED BATTERY             14.40          9.69         67.29
EQIX    EQUINIX INC                  14.36          6.56         45.70
HOKU    HOKU CORP                    14.35          2.03         14.12
AXAS    ABRAXAS PETRO                14.34         11.42         79.59
WATG    WONDER AUTO TECH             14.33          3.43         23.97
HEV     ENER1 INC                    14.31          7.14         49.90
PSSI    PSS WORLD MEDICA             14.30          7.80         54.53
ABCW    ANCHOR BANCRP WI             14.24          2.58         18.15
CLDX    CELLDEX THERAPEU             14.22          4.32         30.38
TCBI    TEXAS CAPITAL BA             14.19          4.94         34.83
THOR    THORATEC CORP                14.09          7.46         52.92
LULU    LULULEMON ATH                14.04          6.77         48.26
BSDM    BSD MEDICAL                  14.03          2.96         21.08
ALGN    ALIGN TECHNOLOGY             13.72          7.78         56.66
IMGN    IMMUNOGEN INC                13.65          9.19         67.38
CSIQ    CANADIAN SOLAR I             13.54          3.99         29.45
PLAB    PHOTRONICS INC               13.53          7.04         52.05
MOLX    MOLEX INC                    13.53          8.60         63.59
CPST    CAPSTONE TURBINE             13.37         32.67        244.29
ALSK    ALASKA COMM SYS              13.31          5.81         43.62
GTXI    GTX INC                      13.30          2.32         17.46
PEGA    PEGASYSTEMS INC              13.23          2.17         16.38
MASI    MASIMO CORP                  13.22          6.75         51.04
SCHL    SCHOLASTIC CORP              13.19          3.00         22.73
FIRE    SOURCEFIRE INC               13.12          3.24         24.70
DEAR    DEARBORN BANCORP             13.04          0.85          6.52
VPRT    VISTAPRINT NV                13.01          5.18         39.82
CBLI    CLEVELAND BIOLAB             12.98          3.09         23.79
APRI    APRICUS BIOSCIEN             12.94          2.16         16.69
TNDM    NEUTRAL TANDEM I             12.92          3.74         28.97
HTWR    HEARTWARE INTERN             12.88          1.41         10.93
WAVX    WAVE SYSTEMS-A               12.83         10.15         79.11
AAON    AAON INC                     12.83          1.49         11.61
PNBK    PATRIOT NATL BNC             12.83          0.26          2.05
GEOI    GEORESOURCES INC             12.82          2.52         19.67
OCZ     OCZ TECHNOLOGY               12.77          3.36         26.30
KERX    KERYX BIOPHARM               12.64          7.47         59.07
MELI    MERCADOLIBRE INC             12.64          3.86         30.51
PETD    PETRO DEV CORP               12.59          2.86         22.74
GPRE    GREEN PLAINS REN             12.58          2.53         20.12
SINA    SINA CORP                    12.56          7.04         56.03
GNOM    COMPLETE GENOMIC             12.54          0.86          6.89
EXPE    EXPEDIA INC                  12.52         23.20        185.31
BCRX    BIOCRYST PHARM               12.49          4.91         39.27
OCLR    OCLARO INC                   12.49          6.19         49.54
MMYT    MAKEMYTRIP LTD               12.48          1.53         12.23
CKEC    CARMIKE CINEMAS              12.46          1.38         11.10
MINI    MOBILE MINI                  12.38          4.40         35.51
AUTC    AUTOCHINA INTERN             12.33          0.79          6.42
CPHD    CEPHEID INC                  12.30          7.38         59.96
AIRM    AIR METHODS CORP             12.28          1.39         11.28
BDCO    BLUE DOLPHIN ENE             12.24          0.19          1.54
XOMA    XOMA LTD                     12.19          3.28         26.88
IMMU    IMMUNOMEDICS INC             12.14          8.64         71.20
GHDX    GENOMIC HEALTH I             12.13          2.04         16.85
LEAP    LEAP WIRELESS                12.13          7.45         61.41
COWN    COWEN GROUP-A                12.13          5.03         41.44
ZSTN    ZST DIGITAL NETW             12.13          0.60          4.97
MNRO    MONRO MUFFLER                12.11          3.47         28.67
ARUN    ARUBA NETWORKS I             12.08         11.37         94.13
CHCO    CITY HOLDING CO              12.08          1.77         14.69
APWR    A-POWER ENERGY G             12.08          4.11         34.01
VCLK    VALUECLICK INC               12.07          9.41         77.91
HOGS    ZHONGPIN INC                 11.98          3.65         30.42
PSEC    PROSPECT CAPITAL             11.98         10.29         85.92
FFIN    FIRST FIN BANKSH             11.96          2.34         19.54
FNFG    FIRST NIAGARA FI             11.95         24.75        207.05
VIVO    MERIDIAN BIOSCI              11.94          4.73         39.61
CPIX    CUMBERLAND PHARM             11.90          1.51         12.71
FINL    FINISH LINE-A                11.81          6.01         50.88
CERN    CERNER CORP                  11.77          8.43         71.60
SSYS    STRATASYS INC                11.76          2.32         19.70
LHCG    LHC GROUP INC                11.75          1.83         15.54
INCY    INCYTE CORP                  11.73         12.98        110.71
AMKR    AMKOR TECH INC               11.73         12.75        108.75
SIVB    SVB FINANCIAL GR             11.67          4.88         41.83
VLCCF   KNIGHTSBRIDGE TA             11.67          2.57         21.99
CBPO    CHINA BIOLOGIC P             11.64          1.37         11.78
PRXL    PAREXEL INTL                 11.63          6.62         56.95
LANC    LANCASTER COLONY             11.61          2.34         20.20
YUII    YUHE INTERNATION             11.58          1.40         12.08
XPRT    LECG CORP                    11.56          3.01         26.04
SYUT    SYNUTRA INTERNAT             11.54          2.00         17.30
JAZZ    JAZZ PHARMACEUTI             11.54          2.45         21.25
ZEUS    OLYMPIC STEEL                11.51          1.05          9.14
OSIR    OSIRIS THERAPEUT             11.51          1.74         15.12
IBKC    IBERIABANK CORP              11.46          2.90         25.31
TITN    TITAN MACHINERY              11.46          1.53         13.34
SPPI    SPECTRUM PHARMAC             11.41          5.18         45.41
SLXP    SALIX PHARM                  11.40          6.39         56.07
BHLB    BERKSHIRE HILLS              11.40          1.54         13.48
HERO    HERCULES OFFSHOR             11.37         12.57        110.51
WIBC    WILSHIRE BANCORP             11.36          2.22         19.52
CRZO    CARRIZO OIL&GAS              11.35          4.03         35.53
BOFI    BOFI HOLDING INC             11.35          0.79          6.96
PNFP    PINNACLE FINL                11.32          3.59         31.70
RUTH    RUTH'S HOSPITALI             11.23          3.85         34.33
RODM    RODMAN & RENSHAW             11.21          1.33         11.85
ALNY    ALNYLAM PHARMACE             11.14          3.61         32.42
NYMX    NYMOX PHARMACEUT             11.12          1.49         13.42
ZOLL    ZOLL MEDICAL                 11.05          2.38         21.53
AMMD    AMER MED SYS HLD             11.04          8.40         76.10
PSMT    PRICESMART INC               11.03          1.96         17.81
MGIC    MAGIC SOFTWARE               10.98          1.64         14.91
ISIS    ISIS PHARM                   10.94         10.24         93.58
TOWN    TOWNE BANK                   10.94          2.52         23.05
KEYW    KEYW HOLDING COR             10.94          1.70         15.58
ZIXI    ZIX CORP                     10.89          6.58         60.39
DRIV    DIGITAL RIVER                10.85          4.08         37.63
TXRH    TEXAS ROADHOUS               10.85          6.72         61.96
DECK    DECKERS OUTDOOR              10.84          4.02         37.12
WERN    WERNER ENT                   10.81          4.70         43.47
VPHM    VIROPHARMA INC               10.81          8.41         77.82
PEIX    PACIFIC ETHANOL              10.76          8.98         83.49
PACW    PACWEST BANCORP              10.73          3.17         29.55
BPAX    BIOSANTE PHARMA              10.67          9.62         90.12
VALU    VALUE LINE INC               10.63          0.14          1.35
ICON    ICONIX BRAND GRO             10.60          7.49         70.69
ASNA    ASCENA RETAIL GR             10.58          6.65         62.85
COLM    COLUMBIA SPORTSW             10.58          1.27         12.03
PANL    UNIVERSAL DISPLA             10.58          4.14         39.12
AVII    AVI BIOPHARMA                10.57         10.66        100.83
BGCP    BGC PARTNERS-A               10.54          6.95         65.92
TWGP    TOWER GROUP INC              10.52          3.96         37.64
CBRL    CRACKER BARREL               10.49          2.37         22.57
CAAS    CHINA AUTOMOTIVE             10.48          1.02          9.74
KNDI    KANDI TECHNOLGIE             10.42          1.28         12.31
CCMP    CABOT MICROELEC              10.38          2.36         22.76
BWLD    BUFFALO WILD WIN             10.38          1.74         16.76
GERN    GERON CORP                   10.38         12.89        124.20
UCBI    UNITED COMMUNITY             10.32          8.30         80.39
DNDN    DENDREON CORP                10.31         14.79        143.49
WBSN    WEBSENSE INC                 10.31          4.15         40.27
OSTK    OVERSTOCK.COM                10.30          2.13         20.63
JCOM    J2 GLOBAL COMM               10.29          4.52         43.89
HBHC    HANCOCK HLDG CO              10.28          4.25         41.32
REFR    RESEARCH FRONT               10.27          1.74         16.90
PURE    PURE BIOSCIENCE              10.26          3.44         33.50
ULTA    ULTA SALON COSME             10.25          4.53         44.16
NWBI    NORTHWEST BANCSH             10.24          3.89         38.03
FNSR    FINISAR CORP                 10.23          9.00         87.97
GBCI    GLACIER BANCORP              10.18          7.10         69.80
ALTH    ALLOS THERAPEUT              10.16          7.78         76.56
VICR    VICOR CORP                   10.11          2.00         19.80
VLNC    VALENCE TECH                 10.11          8.16         80.76
MVIS    MICROVISION INC              10.08          9.40         93.22
HITK    HI-TECH PHARMACA             10.05          1.01         10.06
COBZ    COBIZ FINANCIAL              10.04          3.11         31.00
INFI    INFINITY PHARMAC             10.04          1.20         12.00
XLNX    XILINX INC                   10.02         26.14        260.74
UTHR    UNITED THERAPEUT             10.02          4.97         49.59
BPFH    BOSTON PRIV FINL             10.01          7.41         74.02

-- Bloomberg News To contact Bloomberg News for this story: +1-212-318-2000 or newsdev@bloomberg.net

-0- Apr/13/2011 21:31 GMT

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