Largest Nasdaq Short Interest Percent Decreases as of April 15

The following are the 200 largest short interest percent decreases on the Nasdaq Stock Market as of the April 15 settlement date. This list includes securities with a short position of at least 200,000 shares.



Ticker                                                                     
Symbol   Company                        April 15      March 31     % Change   
=============================================================================
WESTD    WESTINGHOUSE SOL               307,194       599,908       -48.8
XING     QIAO XING UNIVER             1,388,314     2,604,755       -46.7
TRGL     TOREADOR RES                   692,247     1,231,512       -43.8
ASML     ASML HOLDING-NY              1,402,110     2,417,869       -42.0
VELT     VELTI PLC                      431,604       715,484       -39.7
VSEA     VARIAN SEMI EQUI             1,219,651     1,943,854       -37.3
SXCI     SXC HEALTH SOLUT               579,431       922,338       -37.2
LOGM     LOGMEIN INC                  3,044,387     4,706,729       -35.3
CBEH     CHINA INTEGRATED             3,556,941     5,473,862       -35.0
LINTA    LIBERTY-INTER A              3,990,556     6,051,914       -34.1
VRSN     VERISIGN INC                 5,844,627     8,800,238       -33.6
SHPGY    SHIRE PLC-ADR                1,502,290     2,170,006       -30.8
WIN      WINDSTREAM CORP             14,518,725    20,780,684       -30.1
CPWR     COMPUWARE CORP               2,983,670     4,157,564       -28.2
TWTC     TW TELECOM INC               5,325,497     7,345,942       -27.5
BWEN     BROADWIND ENERGY             4,058,129     5,569,461       -27.1
BBRG     BRAVO BRIO RESTA               379,626       519,671       -26.9
ICLR     ICON PLC-ADR                   654,968       891,779       -26.6
PLCM     POLYCOM INC                  2,041,869     2,741,503       -25.5
CPSI     COMPUTER PROGRAM               254,089       340,014       -25.3
UEPS     NET 1 UEPS TECH                376,320       502,520       -25.1
QCOR     QUESTCOR PHARM               8,245,516    10,931,395       -24.6
ISLE     ISLE OF CAPRI                1,344,362     1,767,104       -23.9
KNDI     KANDI TECHNOLGIE               976,464     1,282,727       -23.9
PRAN     PRANA BIOTEC-ADR             1,063,628     1,396,115       -23.8
ISTA     ISTA PHARMACEUTI               451,986       592,908       -23.8
KCAP     KOHLBERG CAPITAL               260,422       339,777       -23.4
MSSR     MCCORMICK & SCHM               521,361       678,171       -23.1
ALTE     ALTERRA CAPITAL              2,500,840     3,236,370       -22.7
TSTY     TASTY BAKING CO                543,323       701,462       -22.5
LOGI     LOGITECH INTER-R            24,232,304    31,147,003       -22.2
AMRS     AMYRIS INC                     892,282     1,146,009       -22.1
ALTI     ALTAIR NANOTECHN               586,900       753,689       -22.1
HAUP     HAUPPAUGE DIGITA               210,210       269,055       -21.9
AXAS     ABRAXAS PETRO                8,944,496    11,417,441       -21.7
TRLG     TRUE RELIGION AP             3,924,478     5,009,041       -21.7
ETFC     E*TRADE FINANCIA             3,587,553     4,569,990       -21.5
ARBA     ARIBA INC                    4,196,646     5,344,958       -21.5
PSEC     PROSPECT CAPITAL             8,093,023    10,293,199       -21.4
OPNT     OPNET TECH INC                 442,658       555,947       -20.4
PMCS     PMC-SIERRA INC               4,890,479     6,107,954       -19.9
CCRN     CROSS COUNTRY HE               759,300       944,953       -19.6
OPLK     OPLINK COMMUNICA               606,923       753,454       -19.4
LPLA     LPL INVESTMENT H               366,873       453,084       -19.0
ABAT     ADVANCED BATTERY             7,850,260     9,689,721       -19.0
CEPH     CEPHALON INC                12,434,546    15,317,807       -18.8
SIMG     SILICON IMAGE                2,915,078     3,590,307       -18.8
EZPW     EZCORP INC-A                 1,740,911     2,134,282       -18.4
ADSK     AUTODESK INC                 4,828,592     5,904,391       -18.2
AZPN     ASPEN TECHNOLOGY             1,889,850     2,307,181       -18.1
GNTX     GENTEX CORP                  3,098,844     3,780,584       -18.0
ULTI     ULTIMATE SOFTWAR             1,609,281     1,962,340       -18.0
BANF     BANCFIRST CORP                 278,465       339,259       -17.9
ASNA     ASCENA RETAIL GR             5,482,737     6,652,646       -17.6
LSTZA    LIBERTY STARZ A                341,589       413,715       -17.4
WFMI     WHOLE FOODS MKT              5,529,931     6,690,656       -17.3
AUTC     AUTOCHINA INTERN               655,204       792,001       -17.3
RDWR     RADWARE LTD                    231,440       279,682       -17.2
ESSA     ESSA BANCORP INC               300,816       363,222       -17.2
ISPH     INSPIRE PHARM                2,973,542     3,588,982       -17.1
MOBI     SKY-MOBI LTD-ADR               517,603       622,799       -16.9
SGI      SILICON GRAPHICS             1,620,845     1,945,233       -16.7
REFR     RESEARCH FRONT               1,465,652     1,736,744       -15.6
SFLY     SHUTTERFLY INC               3,400,707     4,029,186       -15.6
FOSL     FOSSIL INC                   1,741,100     2,060,466       -15.5
CRA      CELERA CORP                  3,343,390     3,942,890       -15.2
BHLB     BERKSHIRE HILLS              1,303,129     1,536,343       -15.2
CONN     CONN'S INC                   5,263,447     6,204,019       -15.2
BNVI     BIONOVO INC                    433,954       510,761       -15.0
ERIC     ERICSSON LM-ADR             16,794,178    19,731,216       -14.9
LEDS     SEMILEDS CORP/TW               439,755       516,361       -14.8
SATS     ECHOSTAR CORP-A                630,140       739,543       -14.8
BIDU     BAIDU INC-SP ADR             5,036,649     5,906,003       -14.7
SWKS     SKYWORKS SOLUTIO             9,247,151    10,824,090       -14.6
SEIC     SEI INVESTMENTS                735,495       860,694       -14.5
JDSU     JDS UNIPHASE                 5,942,368     6,946,899       -14.5
ACAD     ACADIA PHARMACEU               209,160       244,201       -14.3
WWWW     WEB.COM GROUP                  650,707       758,801       -14.2
GIGM     GIGAMEDIA LTD                  668,684       779,551       -14.2
PLXS     PLEXUS CORP                  3,130,419     3,644,076       -14.1
GSIC     GSI COMMERCE INC             4,590,910     5,337,144       -14.0
CRME     CARDIOME PHARMA              1,167,161     1,356,743       -14.0
CCOI     COGENT COMMUNICA             2,099,846     2,438,276       -13.9
GLAD     GLADSTONE CAP CO             1,528,699     1,773,470       -13.8
ARNA     ARENA PHARMACEUT            28,107,722    32,523,407       -13.6
HWAY     HEALTHWAYS INC               1,453,712     1,679,964       -13.5
ZBRA     ZEBRA TECH CORP                444,950       513,939       -13.4
CRDC     CARDICA INC                    206,569       238,302       -13.3
RAVN     RAVEN INDUSTRIES               421,259       485,959       -13.3
LNCE     SNYDERS-LANCE                1,205,209     1,388,958       -13.2
MSFT     MICROSOFT CORP              71,905,713    82,774,442       -13.1
EXPO     EXPONENT INC                   381,037       438,051       -13.0
AAWW     ATLAS AIR WORLDW               776,191       891,374       -12.9
IIVI     II-VI INC                      735,420       844,526       -12.9
BPOP     POPULAR INC                 11,987,423    13,761,142       -12.9
FAST     FASTENAL CO                 10,985,350    12,610,756       -12.9
AGII     ARGO GROUP INTER               705,090       808,015       -12.7
KNOT     KNOT INC/THE                 1,307,586     1,498,154       -12.7
DISCA    DISCOVERY COMM-A            11,218,673    12,847,444       -12.7
EDAP     EDAP TMS SA -ADR               212,880       243,662       -12.6
AVII     AVI BIOPHARMA                9,334,268    10,658,313       -12.4
LUFK     LUFKIN INDS                  2,541,616     2,898,298       -12.3
AREX     APPROACH RESOURC               772,921       881,215       -12.3
RAIL     FREIGHTCAR AMERI               822,709       937,839       -12.3
HIBB     HIBBETT SPORTS I             3,902,578     4,448,593       -12.3
CATM     CARDTRONICS INC              1,341,103     1,527,904       -12.2
ULTR     ULTRAPETROL                    866,582       987,168       -12.2
ENZN     ENZON PHARMACEUT             5,658,546     6,441,174       -12.2
HMSY     HMS HOLDINGS COR             1,597,820     1,817,479       -12.1
FCFS     FIRST CASH FINL              1,369,216     1,557,316       -12.1
SLGN     SILGAN HOLDINGS              1,299,289     1,477,425       -12.1
SINA     SINA CORP                    6,196,046     7,039,053       -12.0
BIOD     BIODEL INC                   3,245,687     3,678,981       -11.8
CHDX     CHINDEX INTL INC               393,634       445,473       -11.6
ARUN     ARUBA NETWORKS I            10,049,794    11,370,649       -11.6
NVAX     NOVAVAX INC                  8,167,699     9,228,927       -11.5
VRNT     VERINT SYSTEMS                 357,921       404,378       -11.5
BEXP     BRIGHAM EXPLOR               8,234,538     9,298,571       -11.4
PGNX     PROGENICS PHARM              1,914,344     2,161,674       -11.4
VRNM     VERENIUM CORP                  247,175       279,108       -11.4
INAP     INTERNAP NETWORK             1,433,574     1,615,731       -11.3
VOD      VODAFONE GRP-ADR             5,244,113     5,909,990       -11.3
CRUS     CIRRUS LOGIC INC             3,822,806     4,307,964       -11.3
JBHT     HUNT (JB) TRANS              2,150,302     2,422,780       -11.2
BFIN     BANKFINANCIAL                  468,324       527,522       -11.2
SSYS     STRATASYS INC                2,056,816     2,316,455       -11.2
SBUX     STARBUCKS CORP              10,998,323    12,374,944       -11.1
TLVT     TELVENT GIT SA                 419,372       471,835       -11.1
CTCT     CONSTANT CONTACT             9,200,686    10,348,192       -11.1
REGN     REGENERON PHARM              5,853,012     6,580,473       -11.1
TZOO     TRAVELZOO INC                1,725,559     1,938,944       -11.0
OXPS     OPTIONSXPRESS HO             2,776,817     3,117,843       -10.9
CHFC     CHEMICAL FIN                   726,399       815,412       -10.9
CFFN     CAPITOL FEDERAL              3,402,969     3,819,747       -10.9
FIBK     FIRST INTER/MT                 336,139       377,221       -10.9
OMPI     OBAGI MEDICAL PR               717,957       805,673       -10.9
HOLX     HOLOGIC INC                  8,220,674     9,218,398       -10.8
NYMX     NYMOX PHARMACEUT             1,332,822     1,493,274       -10.7
LCUT     LIFETIME BRANDS                257,233       288,090       -10.7
FORR     FORRESTER RESEAR               446,786       500,352       -10.7
AMRN     AMARIN CORP -ADR             2,763,544     3,094,307       -10.7
INFA     INFORMATICA CORP             2,382,082     2,666,898       -10.7
WWD      WOODWARD INC                 1,480,765     1,657,700       -10.7
RURL     RURAL/METRO CORP               505,336       565,703       -10.7
NUVA     NUVASIVE INC                 6,206,255     6,946,630       -10.7
KNDL     KENDLE INTL INC                497,363       554,983       -10.4
RIMG     RIMAGE CORP                    206,989       230,932       -10.4
HAIN     HAIN CELESTIAL               2,636,168     2,940,957       -10.4
VCBI     VIRGINIA COMM BA             1,044,459     1,164,584       -10.3
VDSI     VASCO DATA INTL              1,045,706     1,165,373       -10.3
OCNF     OCEANFREIGHT INC               241,033       268,562       -10.3
LXRX     LEXICON PHARMACE            10,224,412    11,389,742       -10.2
TBSI     TBS INTERNATIO-A               247,142       275,154       -10.2
MDRX     ALLSCRIPTS HEALT             3,031,690     3,374,484       -10.2
PVTB     PRIVATEBANCORP               3,449,323     3,836,206       -10.1
NUAN     NUANCE COMMUNICA            16,268,575    18,077,676       -10.0
SASR     SANDY SPRING BAN               814,995       905,080       -10.0
LWSN     LAWSON SOFTWARE              4,728,253     5,246,701        -9.9
VPFG     VIEWPOINT FINANC               492,330       545,967        -9.8
VTAL     VITAL IMAGES INC               331,083       366,800        -9.7
WERN     WERNER ENT                   4,246,278     4,700,922        -9.7
ATVI     ACTIVISION BLIZZ            15,838,882    17,525,985        -9.6
COIN     CONVERTED ORGANI             2,312,037     2,558,294        -9.6
MU       MICRON TECH                 43,722,466    48,366,953        -9.6
FINL     FINISH LINE-A                5,435,430     6,010,050        -9.6
SVVS     SAVVIS INC                   2,198,522     2,430,233        -9.5
HUBG     HUB GROUP-A                  1,140,666     1,259,048        -9.4
WPRT     WESTPORT INNOVAT             3,111,163     3,433,029        -9.4
DFZ      BARRY (R.G.)                   375,920       414,758        -9.4
ACIW     ACI WORLDWIDE IN               796,028       878,053        -9.3
CRIC     CHINA REAL-ADR               2,140,625     2,359,062        -9.3
USAK     USA TRUCK INC                  211,337       232,850        -9.2
COLM     COLUMBIA SPORTSW             1,156,345     1,273,022        -9.2
AMED     AMEDISYS INC                 6,037,096     6,641,648        -9.1
FLML     FLAMEL TECH-ADR                339,868       373,696        -9.1
BKCC     BLACKROCK KELSO              2,818,781     3,099,167        -9.0
SBRA     SABRA HEALTH CAR               821,826       903,114        -9.0
IDCC     INTERDIGITAL INC             7,363,830     8,091,982        -9.0
LDSH     LADISH CO INC                  512,002       562,576        -9.0
CVBF     CVB FINANCIAL               14,452,100    15,877,742        -9.0
NTCT     NETSCOUT SYSTEMS             1,255,445     1,378,880        -9.0
ELNK     EARTHLINK INC                8,949,792     9,828,184        -8.9
ANDS     ANADYS PHARMACEU               743,884       816,839        -8.9
HERO     HERCULES OFFSHOR            11,447,009    12,566,650        -8.9
VOLC     VOLCANO CORP                 3,484,098     3,823,427        -8.9
PCBC     PAC CAP BANCORP                334,016       366,332        -8.8
CGEN     COMPUGEN LTD                   285,350       312,957        -8.8
AFAM     ALMOST FAMILY IN               528,786       579,900        -8.8
SYMC     SYMANTEC CORP                6,288,975     6,892,337        -8.8
NATI     NATL INSTRUMENTS             1,311,249     1,435,899        -8.7
SIGM     SIGMA DESIGNS                1,923,464     2,105,796        -8.7
PBNY     PROVIDENT NEW YO               811,402       887,987        -8.6
FIZZ     NATL BEVERAGE                  535,919       586,262        -8.6
MCRI     MONARCH CASINO                 251,957       275,556        -8.6
NWBI     NORTHWEST BANCSH             3,561,458     3,894,916        -8.6
YHOO     YAHOO! INC                  46,385,931    50,725,452        -8.6
BIRT     ACTUATE CORP                 1,058,987     1,157,988        -8.5
APAGF    APCO OIL AND GAS               263,716       288,202        -8.5
FTNT     FORTINET INC                 3,157,534     3,449,940        -8.5
TRMB     TRIMBLE NAVIG                1,849,370     2,020,269        -8.5

*-- Data includes ETF positions.

-- 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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