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Largest Nasdaq Short Interest Percent Decreases as of May 31

The following are the 200 largest short interest percent decreases on the Nasdaq Stock Market as of the May 31 settlement date. This list includes securities with a short position of at least 200,000 shares.



Ticker                                                                     
Symbol   Company                        May 31        May 13       % Change   
=============================================================================
TXCC     TRANSWITCH CORP                226,413     1,283,083       -82.4
EROC     EAGLE ROCK ENERG               321,300       800,476       -59.9
DISCK    DISCOVERY COMM-C               382,082       904,720       -57.8
SMT      SMART TECHNOL-A              4,242,639     8,875,060       -52.2
MLNX     MELLANOX TECHNOL               342,427       682,387       -49.8
GENE     GENETIC TECH-ADR               221,526       432,188       -48.7
WIBC     WILSHIRE BANCORP             1,895,348     3,626,329       -47.7
MERC     MERCER INTERNATI             1,057,221     2,001,029       -47.2
LPLA     LPL INVESTMENT H               461,362       833,750       -44.7
GLAD     GLADSTONE CAP CO               820,698     1,483,042       -44.7
NDAQ     NASDAQ OMX GROUP             3,364,329     5,423,928       -38.0
MIPS     MIPS TECH INC                6,586,889    10,430,265       -36.8
THOR     THORATEC CORP                4,627,073     7,081,158       -34.7
PARD     PONIARD PHARMACE             1,397,240     2,099,341       -33.4
WMAR     WEST MARINE INC                607,339       896,845       -32.3
ADSK     AUTODESK INC                 3,228,658     4,723,343       -31.6
ISIL     INTERSIL CORP-A              6,027,810     8,781,324       -31.4
CYDE     CYBERDEFENDER CO               304,766       436,037       -30.1
PRAN     PRANA BIOTEC-ADR               844,739     1,193,078       -29.2
ORCL     ORACLE CORP                 23,135,547    32,376,148       -28.5
WIFI     BOINGO WIRELESS                407,018       568,021       -28.3
NXPI     NXP SEMICONDUCTO             1,471,085     2,047,294       -28.1
RDEA     ARDEA BIOSCIENCE             1,702,029     2,361,223       -27.9
CLDX     CELLDEX THERAPEU             3,623,781     5,022,807       -27.9
CCIH     CHINACACHE-ADR                 746,584     1,012,171       -26.2
CPKI     CALIF PIZZA KITC             1,406,294     1,901,535       -26.0
GILD     GILEAD SCIENCES             11,434,040    15,203,773       -24.8
SVVS     SAVVIS INC                   2,399,694     3,179,417       -24.5
SKBI     SKYSTAR BIO-PHAR               212,679       281,342       -24.4
OPXT     OPNEXT INC                   1,961,943     2,593,562       -24.4
HBAN     HUNTINGTON BANC             20,558,089    26,917,777       -23.6
JOYG     JOY GLOBAL INC               2,795,839     3,645,833       -23.3
CYOU     CHANGYOU.COM-ADR               840,291     1,082,261       -22.4
MSFT     MICROSOFT CORP              52,076,715    67,023,794       -22.3
ADBE     ADOBE SYS INC               14,373,323    18,268,740       -21.3
ALLT     ALLOT COMMUNICAT               368,310       467,726       -21.3
SXCI     SXC HEALTH SOLUT               433,709       550,522       -21.2
AMZN     AMAZON.COM INC               8,026,488    10,163,446       -21.0
YONG     YONGYE INTERNATI             4,932,090     6,235,181       -20.9
AFFY     AFFYMAX INC                  1,646,932     2,073,171       -20.6
SBGI     SINCLAIR BROAD-A             2,882,503     3,609,936       -20.2
CHKP     CHECK POINT SOFT             3,373,552     4,207,370       -19.8
CPRT     COPART INC                   1,969,468     2,450,329       -19.6
CMCSA    COMCAST CORP-A              32,807,514    40,510,649       -19.0
ARLP     ALLIANCE RESOURC               515,875       636,889       -19.0
APKT     ACME PACKET INC              4,479,102     5,520,690       -18.9
LSTZA    LIBERTY STARZ A                241,331       296,714       -18.7
ARCC     ARES CAPITAL COR             4,281,577     5,262,548       -18.6
IBKR     INTERACTIVE BROK               642,320       788,819       -18.6
TGA      TRANSGLOBE ENERG               459,926       563,104       -18.3
EZCH     EZCHIP SEMICONDU               413,993       503,027       -17.7
KONG     KONGZHONG-ADR                  404,528       489,638       -17.4
LUFK     LUFKIN INDS                  1,642,851     1,983,706       -17.2
SWKS     SKYWORKS SOLUTIO             8,121,252     9,795,801       -17.1
TRLG     TRUE RELIGION AP             1,432,286     1,726,402       -17.0
CEPH     CEPHALON INC                 8,749,977    10,513,896       -16.8
ALVR     ALVARION LTD                   471,882       566,314       -16.7
DISH     DISH NETWORK-A               3,449,342     4,130,844       -16.5
NSPH     NANOSPHERE INC               2,043,959     2,443,299       -16.3
CENX     CENTURY ALUMINUM             4,312,391     5,152,455       -16.3
VELT     VELTI PLC                      439,144       524,663       -16.3
GLDD     GREAT LAKES DRED             3,007,559     3,591,953       -16.3
RGNC     REGENCY ENERGY P               790,537       940,534       -15.9
FWLT     FOSTER WHEELER               4,268,593     5,076,239       -15.9
LEAP     LEAP WIRELESS                6,394,589     7,598,602       -15.8
ACWX     ISHARES MSCI ACW               239,884       283,809       -15.5
CPWM     COST PLUS INC/CA             1,817,922     2,150,725       -15.5
TWTC     TW TELECOM INC               5,917,437     6,984,981       -15.3
ACOR     ACORDA THERAPEUT             5,354,322     6,318,925       -15.3
ENOC     ENERNOC INC                  3,761,098     4,431,303       -15.1
COLM     COLUMBIA SPORTSW               834,955       981,643       -14.9
SUBK     SUFFOLK BANCORP                576,196       675,693       -14.7
EBAY     EBAY INC                    11,858,029    13,904,656       -14.7
XTEX     CROSSTEX ENERGY                226,335       265,298       -14.7
BIOF     BIOFUEL ENERGY C             1,293,294     1,515,194       -14.6
ZGNX     ZOGENIX INC                    245,290       287,268       -14.6
AGEN     AGENUS INC                   1,645,522     1,922,420       -14.4
SNDA     SHANDA INTER-ADR               724,013       844,844       -14.3
TSON     TRANS1 INC                     843,328       982,612       -14.2
NTAP     NETAPP INC                  17,686,344    20,591,508       -14.1
GOLD     RANDGOLD RES-ADR               674,242       783,825       -14.0
EXFO     EXFO INC                       495,499       574,406       -13.7
VLCM     VOLCOM INC                     758,534       877,843       -13.6
CBLI     CLEVELAND BIOLAB             2,304,875     2,664,777       -13.5
MBLX     METABOLIX INC                6,259,950     7,224,916       -13.4
NTGR     NETGEAR INC                  1,387,958     1,601,771       -13.3
PDCO     PATTERSON COS                4,053,291     4,669,655       -13.2
INFI     INFINITY PHARMAC               951,687     1,096,071       -13.2
SOMX     SOMAXON PHARMACE             8,055,907     9,264,738       -13.0
BCSI     BLUE COAT SYSTEM             2,213,234     2,542,925       -13.0
ROIAK    RADIO ONE-CL D               2,592,034     2,973,804       -12.8
CTSH     COGNIZANT TECH-A             4,015,077     4,601,100       -12.7
ADP      AUTOMATIC DATA               5,349,326     6,122,790       -12.6
MPET     MAGELLAN PETRO                 283,745       324,551       -12.6
TRNX     TORNIER NV                     511,746       585,040       -12.5
ERIC     ERICSSON LM-ADR             10,401,179    11,888,399       -12.5
PWRD     PERFECT WORL-ADR               791,371       902,583       -12.3
NWS      NEWS CORP-B                  4,277,310     4,873,729       -12.2
CHSI     CATALYST HEALTH              2,132,406     2,428,422       -12.2
GOOG     GOOGLE INC-CL A              3,801,794     4,327,698       -12.2
NIHD     NII HOLDING INC              3,149,873     3,583,824       -12.1
UPI      UROPLASTY INC                  556,053       632,569       -12.1
RIMM     RESEARCH IN MOTI            25,549,134    29,051,333       -12.1
OXPS     OPTIONSXPRESS HO             2,774,899     3,150,164       -11.9
TQNT     TRIQUINT SEMICON            10,482,332    11,862,957       -11.6
MXIM     MAXIM INTEGRATED             7,221,092     8,166,794       -11.6
WFM      WHOLE FOODS MKT              5,629,101     6,361,344       -11.5
UTIW     UTI WORLDWIDE                2,548,781     2,877,807       -11.4
STRA     STRAYER EDUCATIO             2,699,815     3,042,324       -11.3
FLIR     FLIR SYSTEMS                 7,905,757     8,904,771       -11.2
RDWR     RADWARE LTD                    282,073       317,691       -11.2
MOLX     MOLEX INC                    8,636,247     9,718,670       -11.1
SLAB     SILICON LABS                 3,405,809     3,824,977       -11.0
CETV     CENTRAL EURO M-A             2,027,838     2,277,067       -10.9
POZN     POZEN INC                    1,572,287     1,764,042       -10.9
OVRL     OVERLAND STORAGE               278,330       312,165       -10.8
AUTC     AUTOCHINA INTERN               384,297       430,587       -10.8
ACOM     ANCESTRY.COM INC             5,444,679     6,097,000       -10.7
JKHY     JACK HENRY                   2,845,255     3,177,691       -10.5
CENT     CENTRAL GARDEN                 201,057       224,375       -10.4
TFSL     TFS FINANCIAL CO             3,314,048     3,695,702       -10.3
EQIX     EQUINIX INC                  5,332,733     5,932,059       -10.1
UBFO     UNITED SECURI/CA               243,162       270,122       -10.0
PTEN     PATTERSON-UTI                7,981,301     8,831,904        -9.6
CORE     CORE-MARK HOLDIN               670,148       741,450        -9.6
FNBN     FNB UNITED CORP                580,814       642,283        -9.6
QUIK     QUICKLOGIC CORP              2,687,721     2,970,242        -9.5
BBBY     BED BATH &BEYOND             4,890,482     5,387,583        -9.2
JAZZ     JAZZ PHARMACEUTI             2,261,225     2,486,974        -9.1
LCRY     LECROY CORP                    359,148       394,920        -9.1
ARMH     ARM HOLDINGS-ADR             8,775,550     9,640,918        -9.0
SSRI     SILVER STANDARD              1,020,705     1,118,116        -8.7
QSFT     QUEST SOFTWARE               3,594,364     3,932,234        -8.6
WSTL     WESTELL TECH-A                 256,113       280,106        -8.6
OREX     OREXIGEN THERAPE             5,655,086     6,184,173        -8.6
WYNN     WYNN RESORTS LTD             3,027,710     3,310,706        -8.5
ULTA     ULTA SALON COSME             3,926,365     4,288,795        -8.5
ONXX     ONYX PHARM                   5,231,000     5,709,603        -8.4
LEDS     SEMILEDS CORP/TW               466,162       508,356        -8.3
VMED     VIRGIN MEDIA INC            22,834,091    24,893,685        -8.3
ADTN     ADTRAN INC                   4,330,141     4,720,394        -8.3
NBIX     NEUROCRINE BIOSC             2,063,609     2,248,467        -8.2
MAT      MATTEL INC                   4,725,096     5,144,963        -8.2
QCOR     QUESTCOR PHARM               7,453,636     8,109,614        -8.1
SCEI     SINO CLEAN ENERG             1,343,127     1,459,437        -8.0
HIMX     HIMAX TECHNO-ADR               305,431       331,521        -7.9
SATS     ECHOSTAR CORP-A                589,402       639,373        -7.8
TELK     TELIK INC                      335,499       363,927        -7.8
VCLK     VALUECLICK INC               7,464,551     8,094,556        -7.8
CTRN     CITI TRENDS INC                935,466     1,014,239        -7.8
ONCY     ONCOLYTICS BIO               3,300,469     3,575,810        -7.7
VECO     VEECO INSTRUMENT            10,898,800    11,805,206        -7.7
BIIB     BIOGEN IDEC INC              3,315,009     3,589,225        -7.6
MTSC     MTS SYSTEMS CORP               519,714       562,580        -7.6
VALV     SHENGKAI INNOVAT               482,450       522,072        -7.6
WWON     WESTWOOD ONE INC               237,864       257,322        -7.6
SPIL     SILICONWARE-ADR              6,256,696     6,768,011        -7.6
QQQ      POWERSH-QQQ                 85,030,236    91,903,368        -7.5
ALTH     ALLOS THERAPEUT              7,044,148     7,610,984        -7.4
CREG     CHINA RECYCLING                200,502       216,573        -7.4
ELNK     EARTHLINK INC               10,294,257    11,112,692        -7.4
NANO     NANOMETRICS INC              1,014,017     1,094,268        -7.3
ROYL     ROYALE ENERGY                1,447,505     1,561,859        -7.3
PBCT     PEOPLE'S UNITED             19,112,818    20,612,381        -7.3
FOSL     FOSSIL INC                   1,237,761     1,334,827        -7.3
CIEN     CIENA CORP                  21,577,139    23,242,614        -7.2
APWR     A-POWER ENERGY G             3,308,560     3,563,258        -7.1
IDCC     INTERDIGITAL INC             6,104,082     6,571,310        -7.1
ACGL     ARCH CAPITAL GRP             5,272,347     5,675,548        -7.1
SNTA     SYNTA PHARMACEUT             2,225,960     2,395,944        -7.1
PFCB     PF CHANG'S CHINA             4,397,683     4,731,853        -7.1
ACAS     AMERICAN CAPITAL            14,810,118    15,896,783        -6.8
TPCG     TPC GROUP INC                  286,139       307,095        -6.8
AAPL     APPLE INC                   10,872,042    11,666,721        -6.8
KOOL     THERMOGENESIS                  335,223       359,508        -6.8
FFNW     FIRST FINANCIAL                367,210       393,805        -6.8
MDSO     MEDIDATA SOLUTIO             1,635,295     1,752,863        -6.7
MCHP     MICROCHIP TECH              15,126,046    16,207,042        -6.7
SYNA     SYNAPTICS INC                9,426,749    10,091,678        -6.6
HWKN     HAWKINS INC                    847,082       906,771        -6.6
BIOS     BIOSCRIP INC                 2,568,307     2,746,555        -6.5
XOMA     XOMA LTD                     2,781,673     2,974,130        -6.5
VRTU     VIRTUSA CORP                   604,052       643,982        -6.2
SIVB     SVB FINANCIAL GR             4,300,370     4,584,044        -6.2
ANDS     ANADYS PHARMACEU               634,659       676,149        -6.1
LPHI     LIFE PARTNERS HO             3,367,501     3,586,849        -6.1
AVNR     AVANIR PHARM INC            30,890,181    32,890,324        -6.1
GCVRZ    SANOFI CVR                   3,793,797     4,035,672        -6.0
PCAR     PACCAR INC                   7,835,083     8,333,741        -6.0
VTSS     VITESSE SEMICOND             1,398,987     1,487,741        -6.0
PAAS     PAN AMER SILVER              1,898,781     2,016,817        -5.9
IMGN     IMMUNOGEN INC                6,881,754     7,309,096        -5.8
HCBK     HUDSON CITY BNCP            11,255,227    11,945,513        -5.8
USAT     USA TECHNOLOGIES             2,088,138     2,214,724        -5.7
SIAL     SIGMA-ALDRICH                3,095,458     3,281,936        -5.7
VVUS     VIVUS INC                   17,608,659    18,665,816        -5.7
WBMD     WEBMD HEALTH COR             3,804,421     4,032,388        -5.7
QNST     QUINSTREET INC               5,544,663     5,875,185        -5.6
ZSTN     ZST DIGITAL NETW               759,699       804,287        -5.5
YRCW     YRC WORLDWIDE IN             9,817,154    10,385,267        -5.5

*-- Data includes ETF positions.

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

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