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Largest Nasdaq Short Interest Percent Decreases as of May 13

The following are the 200 largest short interest percent decreases on the Nasdaq Stock Market as of the May 13 settlement date. This list includes securities with a short position of at least 200,000 shares.



Ticker                                                                     
Symbol   Company                        May 13        April 29     % Change   
=============================================================================
ISTA     ISTA PHARMACEUTI               420,031     1,552,257       -72.9
BRNC     BRONCO DRILLING                211,664       675,652       -68.7
VLCM     VOLCOM INC                     877,843     2,360,978       -62.8
HMPRD    HAMPTON ROADS BA               217,148       506,325       -57.1
GPRO     GEN-PROBE                      940,450     1,769,068       -46.8
TRLG     TRUE RELIGION AP             1,726,402     3,046,603       -43.3
HANS     HANSEN NATURAL                 766,186     1,338,197       -42.7
IBKR     INTERACTIVE BROK               788,819     1,310,804       -39.8
EXPD     EXPEDITORS INTL              2,167,582     3,557,913       -39.1
DISCK    DISCOVERY COMM-C               904,720     1,451,043       -37.7
FNFG     FIRST NIAGARA FI             7,119,463    11,376,006       -37.4
SSRI     SILVER STANDARD              1,118,116     1,742,210       -35.8
NTWK     NETSOL TECH INC                737,144     1,136,592       -35.1
SYMX     SYNTHESIS ENERGY               362,747       553,978       -34.5
CPNO     COPANO ENERGY-UN               690,717     1,034,440       -33.2
TRMB     TRIMBLE NAVIG                1,404,352     2,091,997       -32.9
ACHN     ACHILLION PHARMA             1,040,077     1,546,298       -32.7
MICC     MILLICOM INTL                  785,473     1,166,082       -32.6
BIIB     BIOGEN IDEC INC              3,589,225     5,272,212       -31.9
VELT     VELTI PLC                      524,663       765,762       -31.5
AEIS     ADV ENERGY INDS              1,307,118     1,884,336       -30.6
STX      SEAGATE TECHNOLO            13,153,474    18,832,459       -30.2
MRVL     MARVELL TECH GRP             8,994,855    12,856,491       -30.0
ADBE     ADOBE SYS INC               18,268,740    26,040,236       -29.8
NICE     NICE SYSTEMS-ADR               283,560       401,848       -29.4
HSIC     HENRY SCHEIN INC             2,192,223     3,097,046       -29.2
INTU     INTUIT INC                   3,823,699     5,389,259       -29.0
CPLA     CAPELLA EDUCATIO             1,646,679     2,288,134       -28.0
DISH     DISH NETWORK-A               4,130,844     5,694,454       -27.5
MPEL     MELCO CROWN-ADR              7,424,162    10,213,890       -27.3
SBUX     STARBUCKS CORP               7,516,164    10,280,324       -26.9
QCOM     QUALCOMM INC                16,139,249    21,990,403       -26.6
VOD      VODAFONE GRP-ADR             3,406,564     4,609,262       -26.1
ROYL     ROYALE ENERGY                1,561,859     2,112,195       -26.1
NWS      NEWS CORP-B                  4,873,729     6,478,629       -24.8
CTXS     CITRIX SYSTEMS               4,768,790     6,295,846       -24.3
PERY     PERRY ELLIS INTL               521,858       687,061       -24.0
ATML     ATMEL CORP                  12,380,253    16,202,518       -23.6
CERP     CEREPLAST INC                  338,789       440,587       -23.1
MAT      MATTEL INC                   5,144,963     6,689,115       -23.1
MEOH     METHANEX CORP                  401,524       521,825       -23.1
BEAV     BE AEROSPACE                 1,452,052     1,872,886       -22.5
LUFK     LUFKIN INDS                  1,983,706     2,554,841       -22.4
CA       CA INC                       8,789,727    11,316,413       -22.3
SPWRA    SUNPOWER CORP-A             13,588,343    17,464,848       -22.2
BBBY     BED BATH &BEYOND             5,387,583     6,924,421       -22.2
FLEX     FLEXTRONICS INTL            12,824,775    16,466,660       -22.1
JOYG     JOY GLOBAL INC               3,645,833     4,679,565       -22.1
TRGL     TOREADOR RES                   985,676     1,265,080       -22.1
ZOLL     ZOLL MEDICAL                 2,075,029     2,658,896       -22.0
CLMT     CALUMET SPECIALT               207,059       265,161       -21.9
LOOP     LOOPNET INC                    918,027     1,175,299       -21.9
TITN     TITAN MACHINERY              1,440,546     1,839,461       -21.7
LECO     LINCOLN ELECTRIC               231,111       294,335       -21.5
ANSS     ANSYS INC                    1,214,528     1,539,076       -21.1
PRGO     PERRIGO CO                   1,988,415     2,519,108       -21.1
CRIC     CHINA REAL-ADR               1,491,750     1,884,732       -20.9
NXPI     NXP SEMICONDUCTO             2,047,294     2,580,763       -20.7
CBLI     CLEVELAND BIOLAB             2,664,777     3,349,923       -20.5
PARD     PONIARD PHARMACE             2,099,341     2,630,203       -20.2
RYAAY    RYANAIR HLDG-ADR             1,478,578     1,848,381       -20.0
SIRO     SIRONA DENTAL SY             1,447,075     1,806,305       -19.9
XTEX     CROSSTEX ENERGY                265,298       330,937       -19.8
PLCM     POLYCOM INC                  1,868,920     2,324,541       -19.6
ASTE     ASTEC INDUSTRIES               934,137     1,161,151       -19.6
FOSL     FOSSIL INC                   1,334,827     1,652,841       -19.2
TLCR     TALECRIS BIOTHER             1,348,269     1,664,443       -19.0
HSOL     HANWHA SOLAR-ADR             2,401,533     2,959,763       -18.9
PETM     PETSMART INC                 3,239,187     3,991,480       -18.8
BIOF     BIOFUEL ENERGY C             1,515,194     1,863,086       -18.7
SYMC     SYMANTEC CORP                7,252,226     8,916,235       -18.7
SSYS     STRATASYS INC                1,826,989     2,241,397       -18.5
CPRT     COPART INC                   2,450,329     2,999,407       -18.3
BPOP     POPULAR INC                  4,772,374     5,836,776       -18.2
CRNT     CERAGON NETWORKS               411,733       503,004       -18.1
JASO     JA SOLAR HOL-ADR            19,865,716    24,236,922       -18.0
GAME     SHANDA GAMES-ADR               207,237       252,140       -17.8
HBAN     HUNTINGTON BANC             26,917,777    32,739,459       -17.8
SMOD     SMART MODULAR TE             2,706,809     3,285,934       -17.6
SRCL     STERICYCLE INC               2,171,094     2,634,316       -17.6
GILD     GILEAD SCIENCES             15,203,773    18,374,190       -17.3
IDSA     INDUS SVCS AMER                268,993       325,037       -17.2
STLD     STEEL DYNAMICS               5,243,444     6,327,227       -17.1
AMAT     APPLIED MATERIAL            19,588,887    23,608,909       -17.0
WPRT     WESTPORT INNOVAT             2,268,875     2,730,563       -16.9
PGNX     PROGENICS PHARM              1,472,304     1,766,699       -16.7
OPEN     OPENTABLE INC                4,195,527     5,031,354       -16.6
SPRD     SPREADTRUM-ADR               2,589,660     3,101,478       -16.5
INHX     INHIBITEX INC                2,879,183     3,437,705       -16.2
GIGM     GIGAMEDIA LTD                  676,463       806,187       -16.1
PRXL     PAREXEL INTL                 5,257,650     6,249,958       -15.9
WBMD     WEBMD HEALTH COR             4,032,388     4,789,769       -15.8
ACGL     ARCH CAPITAL GRP             5,675,548     6,732,333       -15.7
ADP      AUTOMATIC DATA               6,122,790     7,245,202       -15.5
VALV     SHENGKAI INNOVAT               522,072       617,440       -15.4
AMRN     AMARIN CORP -ADR             3,651,386     4,313,665       -15.4
AMAG     AMAG PHARMACEUTI             1,621,728     1,913,870       -15.3
MDMD     MEDIAMIND TECHNO               320,424       378,066       -15.2
BIOD     BIODEL INC                   2,788,387     3,288,206       -15.2
VCLK     VALUECLICK INC               8,094,556     9,536,623       -15.1
TFM      FRESH MARKET INC             1,035,381     1,218,665       -15.0
FNSR     FINISAR CORP                 8,653,590    10,185,410       -15.0
SUNS     SOLAR SENIOR CAP               243,919       287,078       -15.0
NTRS     NORTHERN TRUST               4,300,310     5,060,834       -15.0
JKHY     JACK HENRY                   3,177,691     3,739,174       -15.0
NWSA     NEWS CORP-A                 17,631,724    20,724,804       -14.9
TTEC     TELETECH HLDGS                 758,153       890,894       -14.9
MPWR     MONOLITHIC POWER             1,568,824     1,842,235       -14.8
NABI     NABI BIOPHARMA               2,307,341     2,699,583       -14.5
SIAL     SIGMA-ALDRICH                3,281,936     3,833,514       -14.4
PMCS     PMC-SIERRA INC               3,730,116     4,355,348       -14.4
GCVRZ    SANOFI CVR                   4,035,672     4,709,777       -14.3
GLUU     GLU MOBILE INC               4,237,880     4,938,329       -14.2
JBHT     HUNT (JB) TRANS              2,283,557     2,656,598       -14.0
OVTI     OMNIVISION TECH              4,974,628     5,775,780       -13.9
RECN     RESOURCES CONNEC             1,726,559     2,001,366       -13.7
ALTR     ALTERA CORP                 15,976,107    18,501,561       -13.6
EVEP     EV ENERGY PARTNE               315,922       365,664       -13.6
DIOD     DIODES INC                   1,607,221     1,860,183       -13.6
POWL     POWELL INDS INC                313,646       362,734       -13.5
ZGNX     ZOGENIX INC                    287,268       331,922       -13.5
JDAS     JDA SOFTWARE GRP             2,013,285     2,325,441       -13.4
SNDA     SHANDA INTER-ADR               844,844       973,972       -13.3
TBSI     TBS INTERNATIO-A               204,426       235,121       -13.1
CATM     CARDTRONICS INC              1,161,020     1,333,744       -13.0
GMCR     GREEN MOUNTAIN              17,660,075    20,278,617       -12.9
CYDE     CYBERDEFENDER CO               436,037       500,392       -12.9
BMC      BMC SOFTWARE INC             3,271,584     3,753,114       -12.8
CAMT     CAMTEK LTD                     211,436       242,505       -12.8
HOGS     ZHONGPIN INC                 4,120,597     4,722,747       -12.7
CBEH     CHINA INTEGRATED             2,736,940     3,136,639       -12.7
AAPL     APPLE INC                   11,666,721    13,349,219       -12.6
NAVG     NAVIGATORS GROUP               485,571       555,530       -12.6
COLM     COLUMBIA SPORTSW               981,643     1,120,386       -12.4
WSTL     WESTELL TECH-A                 280,106       319,656       -12.4
FEED     AGFEED INDUSTRIE             2,429,177     2,771,595       -12.4
SOHU     SOHU.COM INC                 2,984,552     3,403,294       -12.3
ETFC     E*TRADE FINANCIA             5,406,981     6,160,857       -12.2
COST     COSTCO WHOLESALE             8,338,131     9,498,813       -12.2
ISIL     INTERSIL CORP-A              8,781,324     9,998,043       -12.2
BBRG     BRAVO BRIO RESTA               405,168       460,713       -12.1
MTSC     MTS SYSTEMS CORP               562,580       638,856       -11.9
NTGR     NETGEAR INC                  1,601,771     1,816,955       -11.8
VRTX     VERTEX PHARM                 7,580,430     8,595,454       -11.8
MCRS     MICROS SYSTEMS                 868,692       984,655       -11.8
ZRAN     ZORAN CORP                   1,991,817     2,255,910       -11.7
CTFO     CHINA TRANSINFO                245,811       278,332       -11.7
NUAN     NUANCE COMMUNICA            14,391,519    16,285,634       -11.6
TECH     TECHNE CORP                    589,977       667,587       -11.6
SHOO     STEVEN MADDEN                1,590,389     1,796,000       -11.4
ARMH     ARM HOLDINGS-ADR             9,640,918    10,875,337       -11.4
LWSN     LAWSON SOFTWARE              4,148,979     4,671,269       -11.2
VPRT     VISTAPRINT NV                4,122,082     4,638,629       -11.1
ERTS     ELECTRONIC ARTS             20,343,271    22,856,455       -11.0
VLNC     VALENCE TECH                 7,128,897     8,004,299       -10.9
ISCA     INTL SPEEDWAY-A              1,624,774     1,824,056       -10.9
SGMS     SCIENTIFIC GAM-A             3,384,068     3,798,161       -10.9
CTCT     CONSTANT CONTACT             7,730,024     8,675,340       -10.9
FORM     FORMFACTOR INC               3,678,469     4,121,725       -10.8
PWER     POWER-ONE INC               29,878,193    33,475,105       -10.7
GOLD     RANDGOLD RES-ADR               783,825       877,706       -10.7
SCHN     SCHNITZER STEEL              1,180,273     1,320,805       -10.6
MGLN     MAGELLAN HEALTH              1,849,253     2,068,623       -10.6
NVDA     NVIDIA CORP                 26,254,688    29,362,349       -10.6
BIOS     BIOSCRIP INC                 2,746,555     3,071,172       -10.6
YONG     YONGYE INTERNATI             6,235,181     6,968,389       -10.5
AMSC     AMER SUPERCONDTR            11,260,380    12,567,227       -10.4
CTBI     COMMUNI TRUST BA               414,892       462,699       -10.3
TISI     TEAM INC                       709,288       790,521       -10.3
MSPD     MINDSPEED TECHNO             2,703,304     3,002,243       -10.0
CREG     CHINA RECYCLING                216,573       240,452        -9.9
TSCO     TRACTOR SUPPLY               3,324,053     3,689,955        -9.9
PWRD     PERFECT WORL-ADR               902,583     1,001,854        -9.9
QLIK     QLIK TECHNOLOGIE             1,298,999     1,439,202        -9.7
SWSH     SWISHER HYGIENE              6,650,144     7,367,833        -9.7
DMAN     DEMANDTEC INC                1,216,549     1,344,232        -9.5
IDCC     INTERDIGITAL INC             6,571,310     7,260,534        -9.5
HOLX     HOLOGIC INC                  7,043,407     7,775,096        -9.4
SINA     SINA CORP                    4,172,558     4,605,218        -9.4
MELI     MERCADOLIBRE INC             3,567,366     3,933,727        -9.3
ISRG     INTUITIVE SURGIC             1,715,014     1,887,236        -9.1
BRKS     BROOKS AUTOMATIO             2,627,802     2,891,554        -9.1
PCLN     PRICELINE.COM                3,670,581     4,030,682        -8.9
CFFN     CAPITOL FEDERAL              2,845,946     3,116,569        -8.7
CAR      AVIS BUDGET GROU            14,831,166    16,236,489        -8.7
QGEN     QIAGEN NV                    7,334,238     8,025,516        -8.6
ONNN     ON SEMICONDUCTOR            14,885,520    16,271,985        -8.5
SNDK     SANDISK CORP                 7,744,074     8,459,853        -8.5
PCBC     PAC CAP BANCORP                322,323       352,001        -8.4
BEAT     CARDIONET INC                  880,944       961,444        -8.4
MFLX     MULTI-FINELINE E               365,100       398,419        -8.4
MRTN     MARTEN TRANSPORT               516,582       563,197        -8.3
PAYX     PAYCHEX INC                  7,147,349     7,791,271        -8.3
KNDI     KANDI TECHNOLGIE               840,337       914,589        -8.1
IRBT     IROBOT CORP                  1,632,316     1,775,545        -8.1
CTSH     COGNIZANT TECH-A             4,601,100     5,003,212        -8.0
TROW     T ROWE PRICE GRP             4,406,394     4,791,027        -8.0
HMIN     HOME INNS & -ADR             2,688,855     2,922,734        -8.0
CBPO     CHINA BIOLOGIC P             1,183,674     1,286,072        -8.0
PAAS     PAN AMER SILVER              2,016,817     2,191,035        -8.0

*-- 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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