Largest Nasdaq Short Interest vs Free Float as of May 13

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 May 13 settlement date.



                               Short Interest   Short Interest  Equity Float 
Ticker  Name                      / Float %     (In mln shrs)   (In mln shrs)
=============================================================================
ZAGG    ZAGG INC                     55.90          8.79         15.73
RBCN    RUBICON TECHNOLO             51.91          8.99         17.32
CHBT    CHINA-BIOTICS IN             47.76          4.72          9.89
TSLA    TESLA MOTORS                 47.44         14.77         31.13
CCRT    COMPUCREDIT HOLD             44.42          3.37          7.60
HRBN    HARBIN ELECTRIC              44.09          7.52         17.07
CADX    CADENCE PHARMACE             43.65         15.10         34.58
ENTR    ENTROPIC COMMUNI             43.40         31.93         73.58
ATPG    ATP OIL & GAS                41.22         18.35         44.51
SODA    SODASTREAM INTER             39.62          3.49          8.80
LPHI    LIFE PARTNERS HO             39.18          3.59          9.15
CSTR    COINSTAR INC                 39.00         12.07         30.96
CALM    CAL-MAINE FOODS              38.55          5.00         12.97
LNET    LODGENET INTERAC             38.27          6.17         16.12
MERU    MERU NETWORKS IN             38.07          3.84         10.09
EPOC    EPOCRATES INC                37.69          1.45          3.84
NILE    BLUE NILE INC                35.93          5.19         14.44
REXX    REX ENERGY CORP              35.75         11.52         32.23
CLWR    CLEARWIRE -CL A              35.35         48.75        137.94
AVNR    AVANIR PHARM INC             33.45         32.89         98.31
SPMD    SUPERMEDIA INC               33.45          4.15         12.41
ACOM    ANCESTRY.COM INC             32.66          6.10         18.67
COCO    CORINTHIAN COLLE             32.25         24.61         76.32
PWER    POWER-ONE INC                31.85         29.88         93.82
ENER    ENERGY CONV DEV              31.00         16.33         52.69
CONN    CONN'S INC                   30.54          4.97         16.26
SHLD    SEARS HOLDINGS               30.14         11.48         38.09
SYNA    SYNAPTICS INC                29.82         10.09         33.84
FSLR    FIRST SOLAR INC              29.82         17.50         58.68
STEC    STEC INC                     29.58         13.10         44.29
MBLX    METABOLIX INC                29.46          7.22         24.53
DMND    DIAMOND FOODS                29.31          6.24         21.28
VECO    VEECO INSTRUMENT             29.31         11.81         40.28
MNKD    MANNKIND CORP                29.23         24.81         84.89
AMSC    AMER SUPERCONDTR             28.93         11.26         38.92
BBBB    BLACKBOARD INC               28.88          9.70         33.60
JRCC    JAMES RIVER COAL             28.84          8.88         30.80
TZOO    TRAVELZOO INC                28.74          1.76          6.14
EBIX    EBIX INC                     28.70          9.13         31.83
BRLI    BIO-REFER LABS               28.32          7.00         24.71
OCZ     OCZ TECHNOLOGY               27.90         11.53         41.32
ECHO    ECHO GLOBAL LOGI             27.36          2.85         10.43
SVNT    SAVIENT PHARMACE             27.22         19.06         70.03
CTCT    CONSTANT CONTACT             27.20          7.73         28.42
NTRI    NUTRISYSTEM INC              26.55          6.45         24.28
ALGT    ALLEGIANT TRAVEL             26.51          3.87         14.61
PSUN    PAC SUNWEAR CAL              26.32         11.84         45.00
GFRE    GULF RESOURCES I             26.30          4.66         17.71
SATC    SATCON TECH                  26.17         23.92         91.38
ZUMZ    ZUMIEZ INC                   26.02          5.66         21.75
ZIP     ZIPCAR INC                   26.01          2.66         10.24
CLNE    CLEAN ENERGY FUE             25.90         12.53         48.37
STRA    STRAYER EDUCATIO             25.71          3.04         11.83
MELA    MELA SCIENCES IN             25.44          6.13         24.09
CIEN    CIENA CORP                   25.24         23.24         92.07
SPWRA   SUNPOWER CORP-A              24.85         13.59         54.68
FSIN    FUSHI COPPERWELD             24.71          6.11         24.71
SMT     SMART TECHNOL-A              24.00          8.88         36.98
TSTC    TELESTONE TECHNO             23.84          2.15          9.00
ENOC    ENERNOC INC                  23.82          4.43         18.60
ATHN    ATHENAHEALTH INC             23.80          8.02         33.68
OPEN    OPENTABLE INC                23.71          4.20         17.70
PETS    PETMED EXPRESS               23.61          5.14         21.78
CREE    CREE INC                     23.55         23.68        100.58
PEET    PEETS COFFEE &               23.35          2.94         12.60
WRLD    WORLD ACCEPTANCE             23.34          3.50         15.01
VVUS    VIVUS INC                    23.27         18.67         80.22
CAST    CHINACAST EDUCAT             23.22          9.50         40.93
OSBC    OLD SECOND BNCRP             23.17          2.72         11.72
CMLS    CUMULUS MEDIA-A              23.08          4.97         21.52
FSYS    FUEL SYSTEMS SOL             22.96          3.08         13.42
BONT    BON-TON STORES               22.90          2.88         12.57
SOMX    SOMAXON PHARMACE             22.82          9.26         40.59
LOCM    LOCAL.COM CORP               22.71          4.62         20.36
EDMC    EDUCATION MGMT               22.47          5.59         24.88
MAKO    MAKO SURGICAL                22.43          6.53         29.10
EHTH    EHEALTH INC                  22.43          4.43         19.74
QSII    QUALITY SYSTEMS              22.38          4.29         19.16
VRA     VERA BRADLEY INC             22.26          2.93         13.17
RLOC    REACHLOCAL INC               22.20          2.55         11.49
DCTH    DELCATH SYSTEMS              21.97          9.12         41.54
AMED    AMEDISYS INC                 21.82          6.30         28.86
YRCW    YRC WORLDWIDE IN             21.77         10.39         47.71
QNST    QUINSTREET INC               21.34          5.88         27.54
INWK    INNERWORKINGS IN             21.25          7.36         34.62
PFCB    PF CHANG'S CHINA             21.21          4.73         22.31
RUE     RUE21 INC                    21.15          4.78         22.61
NFLX    NETFLIX INC                  21.12         10.75         50.91
ROYL    ROYALE ENERGY                21.10          1.56          7.40
AUXL    AUXILIUM PHARMAC             21.07         10.02         47.55
SAFM    SANDERSON FARMS              20.96          3.92         18.71
KITD    KIT DIGITAL INC              20.31          6.76         33.30
LIWA    LIHUA INTERNATIO             20.30          3.01         14.82
MNTA    MOMENTA PHARMACE             20.24          8.79         43.46
PLCE    CHILDRENS PLACE              20.12          4.45         22.11
CIGX    STAR SCIENTIFIC              20.04         19.18         95.70
MIPS    MIPS TECH INC                19.94         10.43         52.32
STXS    STEREOTAXIS INC              19.51          7.29         37.39
PRAA    PORTFOLIO RECOVE             19.46          3.25         16.71
WTSLA   WET SEAL INC -A              19.38         17.70         91.35
MOTR    MOTRICITY INC                19.37          6.39         32.98
BJRI    BJ'S RESTAURANTS             19.24          4.21         21.87
CSKI    CHINA SKY ONE ME             19.23          1.98         10.29
CVVT    CHINA VALVES TEC             19.03          3.94         20.71
JBLU    JETBLUE AIRWAYS              18.99         45.75        240.96
LLEN    L&L ENERGY INC               18.90          4.49         23.75
JOSB    JOS A BANK CLOTH             18.80          5.14         27.31
PACR    PACER INTL INC               18.70          6.46         34.56
KNSY    KENSEY NASH CORP             18.65          1.43          7.69
QDEL    QUIDEL CORP                  18.64          5.36         28.73
SQNM    SEQUENOM INC                 18.63         18.33         98.41
WATG    WONDER AUTO TECH             18.47          4.43         23.97
OREX    OREXIGEN THERAPE             18.28          6.18         33.84
DEER    DEER CONSUMER PR             18.27          3.11         17.04
OZRK    BANK OZARKS                  18.20          2.56         14.05
IRDM    IRIDIUM COMMUNIC             17.94          8.86         49.37
LWAY    LIFEWAY FOODS                17.79          0.83          4.66
TAYC    TAYLOR CAPITAL               17.74          1.58          8.88
CNQR    CONCUR TECH INC              17.70          7.75         43.76
CYTX    CYTORI THERAPEUT             17.69          7.74         43.76
RJET    REPUBLIC AIRWAYS             17.54          7.85         44.73
RRGB    RED ROBIN GOURME             17.40          2.14         12.31
CAKE    CHEESECAKE FACTO             17.27          9.29         53.79
TIVO    TIVO INC                     17.23         19.91        115.56
GTXI    GTX INC                      17.22          2.91         16.88
ERII    ENERGY RECOVERY              17.18          5.73         33.33
SGMO    SANGAMO BIOSCIEN             17.13          8.51         49.70
GRNB    GREEN BANKSHARES             17.12          1.87         10.93
PODD    INSULET CORP                 17.10          7.43         43.43
ILMN    ILLUMINA INC                 17.05         20.70        121.43
GRMN    GARMIN LTD                   17.01         20.64        121.33
BCRX    BIOCRYST PHARM               17.00          5.18         30.50
ICUI    ICU MEDICAL                  16.97          2.06         12.16
HEV     ENER1 INC                    16.87          9.13         54.13
ALSK    ALASKA COMM SYS              16.85          7.46         44.27
WTFC    WINTRUST FINL                16.85          5.69         33.75
NVTL    NOVATEL WIRELESS             16.81          5.29         31.49
SIGA    SIGA TECH INC                16.77          6.19         36.93
SGEN    SEATTLE GENETICS             16.75         18.54        110.73
CPST    CAPSTONE TURBINE             16.72         40.85        244.31
AFFX    AFFYMETRIX INC               16.43         10.28         62.58
ASIA    ASIAINFO-LINKAGE             16.39          7.41         45.22
CVBF    CVB FINANCIAL                16.38         13.89         84.81
CHUX    O'CHARLEYS INC               16.27          3.24         19.91
CLDX    CELLDEX THERAPEU             16.27          5.02         30.88
ACOR    ACORDA THERAPEUT             16.25          6.32         38.89
AONE    A123 SYSTEMS INC             16.21         17.97        110.83
SCHS    SCHOOL SPECIALTY             16.21          2.94         18.13
CAVM    CAVIUM NETWORKS              16.11          6.81         42.26
YONG    YONGYE INTERNATI             16.05          6.24         38.85
ZSTN    ZST DIGITAL NETW             16.03          0.80          5.02
NUVA    NUVASIVE INC                 15.90          6.28         39.51
NTSP    NETSPEND HOLDING             15.84          3.63         22.90
COWN    COWEN GROUP-A                15.77          6.50         41.23
TCBI    TEXAS CAPITAL BA             15.70          5.50         35.02
PNSN    PENSON WORLDWIDE             15.66          3.07         19.61
CSIQ    CANADIAN SOLAR I             15.64          4.61         29.45
ARGN    AMERIGON INC                 15.63          3.25         20.82
CBEH    CHINA INTEGRATED             15.58          2.74         17.57
KERX    KERYX BIOPHARM               15.57          9.20         59.07
BAMM    BOOKS-A-MILLION              15.52          1.00          6.46
CRWN    CROWN MEDIA HL-A             15.43          3.85         24.93
QCOR    QUESTCOR PHARM               15.36          8.11         52.79
STEI    STEWART ENTERP-A             15.27         12.09         79.19
HOLI    HOLLYSYS AUTOMAT             15.25          4.78         31.31
GMCR    GREEN MOUNTAIN               15.15         17.66        116.54
CSGP    COSTAR GROUP INC             15.12          2.98         19.68
MOLX    MOLEX INC                    15.09          9.72         64.40
ZOLT    ZOLTEK COS                   15.09          4.17         27.67
GPRE    GREEN PLAINS REN             15.01          3.07         20.44
FRED    FRED'S INC-A                 14.98          5.44         36.28
HIBB    HIBBETT SPORTS I             14.98          4.07         27.17
RNOW    RIGHTNOW TECH                14.92          3.49         23.42
UBSI    UNITED BANKSHS               14.89          5.68         38.12
TTWO    TAKE-TWO INTERAC             14.79         10.52         71.15
PLAB    PHOTRONICS INC               14.79          7.70         52.05
OCLR    OCLARO INC                   14.78          7.40         50.06
IDCC    INTERDIGITAL INC             14.67          6.57         44.78
ENZN    ENZON PHARMACEUT             14.65          6.06         41.35
JAKK    JAKKS PACIFIC                14.59          3.87         26.54
HNSN    HANSEN MEDICAL I             14.55          6.99         48.05
HOKU    HOKU CORP                    14.48          2.06         14.23
LBTYA   LIBERTY GLOBAL-A             14.41         16.35        113.43
BLTI    BIOLASE TECHNOLO             14.41          3.60         24.99
PSMT    PRICESMART INC               14.39          2.10         14.58
BSDM    BSD MEDICAL                  14.35          3.05         21.23
LOGI    LOGITECH INTER-R             14.32         23.75        165.79
KSWS    K-SWISS INC-A                14.32          3.87         27.06
CAR     AVIS BUDGET GROU             14.24         14.83        104.15
ABCW    ANCHOR BANCRP WI             14.24          2.58         18.15
THQI    THQ INC                      14.13          9.48         67.10
RDEA    ARDEA BIOSCIENCE             14.11          2.36         16.73
PSSI    PSS WORLD MEDICA             14.05          7.66         54.52
LOGM    LOGMEIN INC                  14.02          2.64         18.83
CEPH    CEPHALON INC                 13.99         10.51         75.15
HERO    HERCULES OFFSHOR             13.90         15.37        110.59
SFSF    SUCCESSFACTORS I             13.81          9.59         69.42
THOR    THORATEC CORP                13.75          7.08         51.48
FIRE    SOURCEFIRE INC               13.72          3.42         24.89
BDCO    BLUE DOLPHIN ENE             13.72          0.21          1.54
RRD     RR DONNELLEY & S             13.57         27.90        205.53
CKEC    CARMIKE CINEMAS              13.56          1.44         10.65
HOGS    ZHONGPIN INC                 13.54          4.12         30.42
CAAS    CHINA AUTOMOTIVE             13.49          1.31          9.74
GEOI    GEORESOURCES INC             13.46          2.70         20.07
GHDX    GENOMIC HEALTH I             13.38          2.28         17.02
NETL    NETLOGIC MICROSY             13.37          8.23         61.53
AXAS    ABRAXAS PETRO                13.22         10.55         79.80
MNRO    MONRO MUFFLER                13.21          3.79         28.67
AMMD    AMER MED SYS HLD             13.20         10.10         76.51
SYUT    SYNUTRA INTERNAT             13.11          2.27         17.30
CRZO    CARRIZO OIL&GAS              13.08          4.67         35.67
PANL    UNIVERSAL DISPLA             12.98          5.10         39.26
BWLD    BUFFALO WILD WIN             12.98          2.19         16.86
ALGN    ALIGN TECHNOLOGY             12.90          7.32         56.70
VIVO    MERIDIAN BIOSCI              12.84          5.08         39.60
CBRL    CRACKER BARREL               12.83          2.90         22.58
PNBK    PATRIOT NATL BNC             12.80          0.26          2.05
EQIX    EQUINIX INC                  12.80          5.93         46.36
DRIV    DIGITAL RIVER                12.78          4.89         38.26
FFIN    FIRST FIN BANKSH             12.72          2.49         19.54
ISIS    ISIS PHARM                   12.70         11.89         93.60
IBKC    IBERIABANK CORP              12.66          3.23         25.49
CBST    CUBIST PHARM                 12.64          7.55         59.71
EXEL    EXELIXIS INC                 12.64         15.92        125.92
LHCG    LHC GROUP INC                12.61          1.96         15.54
CVGW    CALAVO GROWERS I             12.58          1.49         11.87
HBHC    HANCOCK HLDG CO              12.57          5.29         42.09
APRI    APRICUS BIOSCIEN             12.53          2.10         16.77
CCBG    CAP CITY BANK                12.52          1.23          9.78
OSIR    OSIRIS THERAPEUT             12.51          1.89         15.12
URBN    URBAN OUTFITTER              12.49         15.97        127.83
VITC    VITACOST.COM INC             12.48          2.03         16.28
INSU    INSITUFORM TECH              12.47          4.83         38.73
DECK    DECKERS OUTDOOR              12.47          4.64         37.18
IMMU    IMMUNOMEDICS INC             12.44          8.86         71.27
CROX    CROCS INC                    12.44         10.01         80.50
ASYS    AMTECH SYS INC               12.42          1.12          8.98
PETD    PETRO DEV CORP               12.41          2.83         22.79
SPPI    SPECTRUM PHARMAC             12.41          5.64         45.45
SCHL    SCHOLASTIC CORP              12.39          2.82         22.73
AMKR    AMKOR TECH INC               12.38         13.08        105.69
LANC    LANCASTER COLONY             12.37          2.48         20.04
CPHD    CEPHEID INC                  12.36          7.45         60.29
BIOD    BIODEL INC                   12.35          2.79         22.58
LEAP    LEAP WIRELESS                12.31          7.60         61.72
CPIX    CUMBERLAND PHARM             12.28          1.57         12.79
SFLY    SHUTTERFLY INC               12.25          3.70         30.23
INCY    INCYTE CORP                  12.24         13.70        111.94
MASI    MASIMO CORP                  12.23          6.60         53.98
ABAT    ADVANCED BATTERY             12.21          8.24         67.47
HTWR    HEARTWARE INTERN             12.16          1.33         10.97
WAVX    WAVE SYSTEMS-A               12.12          9.66         79.67
NVLS    NOVELLUS SYS                 12.09         10.73         88.74
AAON    AAON INC                     12.03          1.41         11.76
NWBI    NORTHWEST BANCSH             12.00          4.20         34.95
MVIS    MICROVISION INC              11.95         11.45         95.81
MMYT    MAKEMYTRIP LTD               11.95          1.46         12.23
PNFP    PINNACLE FINL                11.90          3.79         31.85
CHCO    CITY HOLDING CO              11.81          1.73         14.62
CFSG    CHINA FIRE & SEC             11.81          0.96          8.15
ZIXI    ZIX CORP                     11.76          6.97         59.30
PRSP    PROSPERITY BNCSH             11.71          5.04         43.07
CERN    CERNER CORP                  11.69          8.52         72.86
MELI    MERCADOLIBRE INC             11.69          3.57         30.51
RUTH    RUTH'S HOSPITALI             11.69          4.02         34.37
MINI    MOBILE MINI                  11.67          4.33         37.09
EXAS    EXACT SCIENCES               11.63          5.94         51.10
BPAX    BIOSANTE PHARMA              11.62         10.47         90.15
YUII    YUHE INTERNATION             11.61          1.40         12.08
TXRH    TEXAS ROADHOUS               11.61          7.05         60.71
TDSC    3D SYSTEMS CORP              11.59          2.49         21.46
COBZ    COBIZ FINANCIAL              11.58          3.61         31.17
CPLA    CAPELLA EDUCATIO             11.53          1.65         14.28
HITK    HI-TECH PHARMACA             11.49          1.16         10.06
UTHR    UNITED THERAPEUT             11.48          5.73         49.92
ALIM    ALIMERA SCIENCES             11.48          0.83          7.26
JAZZ    JAZZ PHARMACEUTI             11.46          2.49         21.70
ARUN    ARUBA NETWORKS I             11.42         10.75         94.07
BOFI    BOFI HOLDING INC             11.39          0.81          7.07
NARA    NARA BANCORP INC             11.39          3.94         34.60
DGIT    DG FASTCHANNEL               11.34          2.76         24.30
AIRM    AIR METHODS CORP             11.30          1.28         11.31
DEAR    DEARBORN BANCORP             11.29          0.74          6.52
TNDM    NEUTRAL TANDEM I             11.26          3.67         32.61
PURE    PURE BIOSCIENCE              11.23          3.76         33.50
DNDN    DENDREON CORP                11.23         16.16        143.94
TOWN    TOWNE BANK                   11.22          2.58         22.96
VLCCF   KNIGHTSBRIDGE TA             11.21          2.47         21.99
NYMX    NYMOX PHARMACEUT             11.15          1.50         13.42
GMET    GEOMET INC                   11.13          0.29          2.64
JCOM    J2 GLOBAL COMM               11.09          4.88         43.99
CBLI    CLEVELAND BIOLAB             11.08          2.66         24.04
AFSI    AMTRUST FIN SERV             11.07          2.66         24.08
SCEI    SINO CLEAN ENERG             11.02          1.46         13.24
LNCR    LINCARE HOLDINGS             11.02         10.13         91.95
CCMP    CABOT MICROELEC              10.99          2.53         23.03
XOMA    XOMA LTD                     10.96          2.97         27.14
AXTI    AXT INC                      10.92          3.39         31.00
DEPO    DEPOMED INC                  10.89          5.44         49.93
ALNY    ALNYLAM PHARMACE             10.87          3.53         32.48
PDLI    PDL BIOPHARMA IN             10.87         15.06        138.56
SIVB    SVB FINANCIAL GR             10.84          4.58         42.27
LULU    LULULEMON ATH                10.84          5.23         48.21
IMGN    IMMUNOGEN INC                10.80          7.31         67.67
GERN    GERON CORP                   10.79         13.41        124.29
TITN    TITAN MACHINERY              10.79          1.44         13.35
TWGP    TOWER GROUP INC              10.79          4.04         37.45
PEGA    PEGASYSTEMS INC              10.77          1.77         16.45
EXPE    EXPEDIA INC                  10.75         19.85        184.69
HWKN    HAWKINS INC                  10.71          0.91          8.47
WERN    WERNER ENT                   10.68          4.65         43.55
VCLK    VALUECLICK INC               10.68          8.09         75.80
ABAX    ABAXIS INC                   10.66          2.29         21.48
BPFH    BOSTON PRIV FINL             10.65          7.95         74.60
ACUR    ACURA PHARMACEUT             10.65          0.99          9.32
VALU    VALUE LINE INC               10.59          0.14          1.35
NKTR    NEKTAR THERAPEUT             10.57         12.02        113.64
ICON    ICONIX BRAND GRO             10.57          7.48         70.80
NSPH    NANOSPHERE INC               10.56          2.44         23.13
AVAV    AEROVIRONMENT IN             10.55          1.62         15.35
CECO    CAREER EDUCATION             10.54          6.39         60.56
FINL    FINISH LINE-A                10.54          5.48         52.02
NXTM    NXSTAGE MEDICAL              10.53          4.68         44.47
ESLR    EVERGREEN SOLAR              10.49          3.93         37.48
LVLT    LEVEL 3 COMM INC             10.48        172.28       1643.46
APWR    A-POWER ENERGY G             10.48          3.56         34.01
BMTI    BIOMIMETIC THERA             10.48          2.06         19.70
CPWM    COST PLUS INC/CA             10.44          2.15         20.59
IBCP    INDEP BANK/MICH              10.41          0.82          7.86
PACW    PACWEST BANCORP              10.35          3.06         29.52
SUSQ    SUSQUEHAN BNCSHS             10.35         13.28        128.28
VPRT    VISTAPRINT NV                10.30          4.12         40.03
WBSN    WEBSENSE INC                 10.29          4.07         39.60
CRUS    CIRRUS LOGIC INC             10.22          6.52         63.84
ELNK    EARTHLINK INC                10.21         11.11        108.82
OSTK    OVERSTOCK.COM                10.17          2.10         20.63
COMV    COMVERGE INC                 10.16          1.83         18.05
SLXP    SALIX PHARM                  10.15          5.71         56.27
GBCI    GLACIER BANCORP              10.14          7.08         69.80
RODM    RODMAN & RENSHAW             10.13          1.55         15.28
SONC    SONIC CORP                   10.07          5.56         55.24
DWA     DREAMWORKS ANI-A             10.07          6.24         62.01
CBPO    CHINA BIOLOGIC P             10.04          1.18         11.78
SMSI    SMITH MICRO SOFT             10.03          3.18         31.73

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