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Biggest Nasdaq Changes in Short Interest vs Float as of April 15

The following tables show companies listed on the Nasdaq Stock Market that have the largest changes in short interest as a percentage of shares available for trading as of the April 15 settlement date.

TOP 25 INCREASES IN SHORT INTEREST VS FLOAT


                                      April 15        March 31   
                                  Short Interest   Short Interest   
Ticker Name                        /Free Float %   /Free Float %    Increase % 
=============================================================================
GFRE  GULF RESOURCES I                   30.91           17.76        13.15
ZAGG  ZAGG INC                           53.57           41.32        12.25
AMSC  AMER SUPERCONDTR                   32.65           21.28        11.37
CCRT  COMPUCREDIT HOLD                   46.31           37.12         9.19
EPOC  EPOCRATES INC                      17.54            8.50         9.05
ACUR  ACURA PHARMACEUT                    9.76            2.90         6.87
ROYL  ROYALE ENERGY                      28.56           21.94         6.62
TAYC  TAYLOR CAPITAL                     22.83           16.25         6.57
FSIN  FUSHI COPPERWELD                   22.10           15.96         6.14
VVUS  VIVUS INC                          26.41           20.71         5.70
BLTI  BIOLASE TECHNOLO                   10.25            4.68         5.57
BGMD  BG MEDICINE                         5.61            0.06         5.55
CAAS  CHINA AUTOMOTIVE                   15.33           10.48         4.85
ACOM  ANCESTRY.COM INC                   23.19           18.36         4.82
STRA  STRAYER EDUCATIO                   24.85           20.11         4.74
ZSTN  ZST DIGITAL NETW                   16.44           12.13         4.31
LVLT  LEVEL 3 COMM INC                    9.66            5.54         4.12
STEC  STEC INC                           31.91           27.97         3.94
TSLA  TESLA MOTORS                       46.59           42.70         3.89
CSIQ  CANADIAN SOLAR I                   17.38           13.54         3.84
CFSG  CHINA FIRE & SEC                   11.32            7.57         3.74
EXEL  EXELIXIS INC                       12.36            8.62         3.74
RRGB  RED ROBIN GOURME                   19.93           16.30         3.63
ACHN  ACHILLION PHARMA                    4.13            0.56         3.57
XNPT  XENOPORT INC                       10.39            6.83         3.56

TOP 25 DECREASES IN SHORT INTEREST VS FLOAT

                                      April 15        March 31   
                                  Short Interest   Short Interest   
Ticker Name                        /Free Float %   /Free Float %    Decrease % 
=============================================================================
CBEH  CHINA INTEGRATED                   20.25           31.16       -10.91
LOGM  LOGMEIN INC                        16.28           25.21        -8.93
PACQU PRIME ACQUISITIO                    0.39            7.97        -7.58
RLOC  REACHLOCAL INC                     19.92           26.58        -6.66
ARNA  ARENA PHARMACEUT                   21.25           27.08        -5.83
CONN  CONN'S INC                         32.37           38.10        -5.73
QCOR  QUESTCOR PHARM                     15.62           20.40        -4.78
TRLG  TRUE RELIGION AP                   17.11           21.33        -4.23
LOGI  LOGITECH INTER-R                   14.60           18.76        -4.16
KNDI  KANDI TECHNOLGIE                    6.33           10.42        -4.10
CTCT  CONSTANT CONTACT                   32.44           36.48        -4.05
CEPH  CEPHALON INC                       16.65           20.52        -3.86
TZOO  TRAVELZOO INC                      31.16           35.02        -3.85
RBCN  RUBICON TECHNOLO                   47.44           51.04        -3.60
PSEC  PROSPECT CAPITAL                    8.51           11.98        -3.47
WESTD WESTINGHOUSE SOL                    3.37            6.56        -3.19
DSTI  DAYSTAR TECH INC                    3.90            7.06        -3.16
AXAS  ABRAXAS PETRO                      11.24           14.34        -3.11
AVII  AVI BIOPHARMA                       7.76           10.57        -2.81
ABAT  ADVANCED BATTERY                   11.67           14.40        -2.73
SFLY  SHUTTERFLY INC                     13.35           15.82        -2.47
ICGN  ICAGEN INC                          1.18            3.62        -2.44
TRGL  TOREADOR RES                        2.95            5.25        -2.30
XING  QIAO XING UNIVER                    2.61            4.90        -2.29
SGMO  SANGAMO BIOSCIEN                   15.87           18.12        -2.25

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

-0- May/04/2011 20:30 GMT

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