Bloomberg News

Largest Nasdaq Short Interest Percent Increases as of Feb. 15

February 28, 2012

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



Ticker                                                                     
Symbol   Company                        Feb. 15       Jan. 31      % Change   
=============================================================================
DSCO     DISCOVERY LABS               1,071,160       290,457       268.8
THLD     THRESHOLD PHARMA             1,811,934       720,533       151.5
HK       HALCON RESOURCES             3,093,822     1,396,846       121.5
PNCL     PINNACLE AIRLINE               882,304       401,080       120.0
SIMO     SILICON MOTI-ADR             1,558,755       734,150       112.3
STEM     STEMCELLS INC                  955,148       453,754       110.5
MDCA     MDC PARTNERS-A               2,110,222     1,027,215       105.4
CNVO     CONVIO INC                   1,955,610       957,159       104.3
ABMD     ABIOMED INC                  4,223,926     2,131,103        98.2
ERIC     ERICSSON LM-ADR              8,217,390     4,182,274        96.5
CXDC     CHINA XD PLASTIC               680,720       347,599        95.8
CME      CME GROUP INC                1,521,162       793,007        91.8
CBOE     CBOE HOLDINGS IN             3,922,912     2,148,417        82.6
XTEX     CROSSTEX ENERGY                770,314       430,699        78.9
JDSU     JDS UNIPHASE                10,625,400     6,050,059        75.6
ARRY     ARRAY BIOPHARMA              3,824,242     2,208,303        73.2
VOXX     AUDIOVOX CORP-A              1,032,449       605,969        70.4
ZGNX     ZOGENIX INC                  2,166,066     1,353,312        60.1
MTGE     AMERICAN CAPITAL               492,516       308,080        59.9
FOLD     AMICUS THERAPEUT               777,869       489,523        58.9
ARBA     ARIBA INC                    2,405,900     1,516,133        58.7
BVSN     BROADVISION INC                436,520       279,330        56.3
GALE     GALENA BIOPHARMA             4,413,146     2,892,650        52.6
SATS     ECHOSTAR CORP-A                792,221       520,270        52.3
THOR     THORATEC CORP                2,245,800     1,492,720        50.5
RVBD     RIVERBED TECHNOL             5,873,057     3,908,087        50.3
EROC     EAGLE ROCK ENERG             1,151,604       767,154        50.1
IPXL     IMPAX LABS INC               4,380,563     2,940,291        49.0
Z        ZILLOW INC                     909,134       630,977        44.1
BMC      BMC SOFTWARE INC             3,959,766     2,755,696        43.7
RYAAY    RYANAIR HLDG-ADR             1,089,596       759,129        43.5
APKT     ACME PACKET INC              7,822,547     5,452,856        43.5
CBSH     COMMERCE BCSHS               2,964,824     2,072,515        43.1
CYTR     CYTRX CORP                     830,783       584,478        42.1
BBEP     BREITBURN ENERGY               438,852       309,506        41.8
MSG      MADISON SQUARE-A               651,578       460,140        41.6
EVEP     EV ENERGY PARTNE             1,221,837       864,782        41.3
FFN      FRIENDFINDER NET             1,938,158     1,375,389        40.9
QCOM     QUALCOMM INC                14,017,464     9,952,636        40.8
BRCM     BROADCOM CORP-A              9,448,659     6,763,823        39.7
BEAV     BE AEROSPACE                 2,557,450     1,832,609        39.6
AMLN     AMYLIN PHARM INC            16,462,437    11,861,474        38.8
FTR      FRONTIER COMMUNI           165,731,165   119,579,601        38.6
MNST     MONSTER BEVERAGE             1,713,060     1,240,401        38.1
CFFN     CAPITOL FEDERAL              1,882,763     1,365,018        37.9
SLGN     SILGAN HOLDINGS                615,385       446,262        37.9
ANGO     ANGIODYNAMICS IN               987,802       718,285        37.5
IDIX     IDENIX PHARM                 8,829,013     6,458,429        36.7
MTSN     MATTSON TECH                   478,041       349,757        36.7
CMED     CHINA MEDIC-ADR              6,321,572     4,636,806        36.3
AFFY     AFFYMAX INC                  3,444,283     2,532,567        36.0
KLAC     KLA-TENCOR CORP              8,067,774     5,941,598        35.8
CTCM     CTC MEDIA INC                  650,133       478,913        35.8
EXPD     EXPEDITORS INTL              3,913,013     2,884,038        35.7
PDFS     PDF SOLUTIONS                  932,166       689,173        35.3
AINV     APOLLO INV CORP              8,918,134     6,615,397        34.8
NGSX     NEUROGESX INC                  389,771       289,205        34.8
JRCC     JAMES RIVER COAL            14,020,634    10,404,223        34.8
WCRX     WARNER CHILCOT-A             3,136,440     2,333,758        34.4
SWIR     SIERRA WIRELESS                277,308       207,190        33.8
PAAS     PAN AMER SILVER              5,787,984     4,334,371        33.5
AGNC     AMERICAN CAPITAL             8,931,373     6,713,920        33.0
CRIS     CURIS INC                    6,645,816     5,030,268        32.1
TSRX     TRIUS THERAPEUTI               368,864       279,296        32.1
SOHU     SOHU.COM INC                 5,147,440     3,914,798        31.5
MITK     MITEK SYSTEMS                4,602,053     3,514,355        31.0
ZNGA     ZYNGA INC- CL A             27,607,369    21,099,618        30.8
GTXI     GTX INC                      3,804,007     2,909,519        30.7
SPU      SKYPEOPLE FRUIT                676,480       517,944        30.6
BLDR     BUILDERS FIRSTSO             2,197,853     1,683,956        30.5
CPNO     COPANO ENERGY-UN               588,230       453,858        29.6
DRYS     DRYSHIPS INC                10,420,753     8,058,820        29.3
MNTA     MOMENTA PHARMACE             7,194,456     5,593,834        28.6
CORT     CORCEPT THERA                4,619,054     3,620,782        27.6
TWIN     TWIN DISC INC                1,593,460     1,250,090        27.5
CCOI     COGENT COMMUNICA             2,328,168     1,828,856        27.3
ISRG     INTUITIVE SURGIC             1,014,421       797,987        27.1
FRP      FAIRPOINT COMMUN             2,742,008     2,158,608        27.0
SEIC     SEI INVESTMENTS              1,147,015       904,320        26.8
EGLE     EAGLE BULK SHIPP             7,735,395     6,102,004        26.8
CTRP     CTRIP.COM-ADR                9,172,262     7,250,882        26.5
CRUS     CIRRUS LOGIC INC             9,976,246     7,894,639        26.4
CMCSA    COMCAST CORP-A              31,232,905    24,823,884        25.8
ANTH     ANTHERA PHARMACE             1,290,405     1,026,191        25.7
ACIW     ACI WORLDWIDE IN             4,242,001     3,376,331        25.6
BMRN     BIOMARIN PHARMAC             9,955,274     7,930,719        25.5
IPGP     IPG PHOTONICS                3,226,378     2,581,322        25.0
CTWS     CONN WATER SVC                 326,707       262,271        24.6
MPEL     MELCO CROWN-ADR              7,672,459     6,173,290        24.3
GOOG     GOOGLE INC-CL A              3,728,343     3,006,892        24.0
MERC     MERCER INTERNATI               611,786       494,148        23.8
BONT     BON-TON STORES               3,465,154     2,802,453        23.6
OXBT     OXYGEN BIOTHERAP               488,096       394,785        23.6
LRCX     LAM RESEARCH                20,077,597    16,248,713        23.6
AAWW     ATLAS AIR WORLDW             1,141,868       930,379        22.7
POWL     POWELL INDS INC                284,437       231,772        22.7
SREV     SERVICESOURCE IN             8,331,135     6,794,127        22.6
QTWW     QUANTUM FUEL SYS             1,473,924     1,203,119        22.5
DSCI     DERMA SCIENCES                 287,220       234,540        22.5
MDVN     MEDIVATION INC               2,882,688     2,354,134        22.5
ASTI     ASCENT SOLAR TEC             1,492,839     1,220,091        22.4
WPRT     WESTPORT INNOVAT             6,790,857     5,559,644        22.1
DMND     DIAMOND FOODS               12,970,877    10,626,631        22.1
AMZN     AMAZON.COM INC               8,592,084     7,049,448        21.9
TXN      TEXAS INSTRUMENT            17,455,272    14,340,161        21.7
MXIM     MAXIM INTEGRATED             3,482,780     2,863,042        21.6
LEAP     LEAP WIRELESS               12,065,177     9,926,338        21.5
SONC     SONIC CORP                   3,233,492     2,662,229        21.5
ROIC     RETAIL OPPORTUNI             3,314,373     2,730,048        21.4
LBTYA    LIBERTY GLOBAL-A             3,662,802     3,017,630        21.4
TRIB     TRINITY BIO-ADR                333,553       275,217        21.2
CLVS     CLOVIS ONCOLOGY                951,723       787,151        20.9
AROW     ARROW FINL CORP                730,358       604,107        20.9
RBCAA    REPUBLIC BNCRP-A               764,879       633,645        20.7
HZNP     HORIZON PHARMA I               755,820       628,663        20.2
NBIX     NEUROCRINE BIOSC             2,911,981     2,424,547        20.1
MDCO     MEDICINES COMP               2,464,217     2,052,672        20.0
EXPE     EXPEDIA INC                 17,323,027    14,455,388        19.8
SHPGY    SHIRE PLC-ADR                1,448,974     1,212,619        19.5
STLD     STEEL DYNAMICS               6,192,147     5,193,542        19.2
PMTI     PALOMAR MED TECH               808,730       678,472        19.2
CALL     MAGICJACK VOCAL              2,016,668     1,693,038        19.1
KIRK     KIRKLAND'S INC                 835,309       703,366        18.8
FMCN     FOCUS MEDIA-ADR             10,804,475     9,105,445        18.7
WILN     WI-LAN INC                     349,358       294,636        18.6
SBSI     SOUTHSIDE BAN IN             1,072,160       904,682        18.5
VRNM     VERENIUM CORP                  377,230       318,526        18.4
RRD      RR DONNELLEY & S            54,615,131    46,165,615        18.3
PMCS     PMC-SIERRA INC               4,161,074     3,525,896        18.0
MDSO     MEDIDATA SOLUTIO             2,685,272     2,276,915        17.9
LINE     LINN ENERGY LLC              1,148,122       980,328        17.1
NWS      NEWS CORP-B                  3,830,860     3,274,219        17.0
QCOR     QUESTCOR PHARM              12,348,054    10,574,837        16.8
RIMM     RESEARCH IN MOTI            55,904,812    47,942,118        16.6
DRCO     DYNAMICS RSCH                  579,551       497,861        16.4
PWRD     PERFECT WORL-ADR               810,203       696,231        16.4
DRWI     DRAGONWAVE INC               1,535,481     1,321,744        16.2
SAVE     SPIRIT AIRLINES                828,704       713,951        16.1
SWKS     SKYWORKS SOLUTIO             7,040,124     6,073,877        15.9
SPPI     SPECTRUM PHARMAC            15,787,776    13,641,637        15.7
CVV      CVD EQUIPMENT CO               617,265       533,509        15.7
VELT     VELTI PLC                    4,112,646     3,584,103        14.7
FLML     FLAMEL TECH-ADR                286,920       250,267        14.6
CHKP     CHECK POINT SOFT             1,980,633     1,728,487        14.6
CYTX     CYTORI THERAPEUT             8,987,076     7,854,208        14.4
INFY     INFOSYS LTD-ADR             13,062,214    11,430,547        14.3
MFRM     MATTRESS FIRM HO             2,056,740     1,800,121        14.3
XIDE     EXIDE TECH                   5,721,899     5,014,538        14.1
GEVA     SYNAGEVA BIOPHAR               451,341       395,710        14.1
ASCA     AMERISTAR CASINO             1,388,811     1,218,020        14.0
HBAN     HUNTINGTON BANC             12,828,103    11,256,144        14.0
SWHC     SMITH & WESSON H             2,347,000     2,062,104        13.8
TECH     TECHNE CORP                    666,148       585,821        13.7
EA       ELECTRONIC ARTS             17,401,393    15,343,182        13.4
ACUR     ACURA PHARMACEUT             1,403,601     1,238,740        13.3
CRIC     CHINA REAL-ADR                 667,218       588,861        13.3
TSEM     TOWER SEMICONDCT               905,716       800,806        13.1
GENT     GENTIUM SPA-ADR                238,396       211,052        13.0
CAAS     CHINA AUTOMOTIVE               492,696       436,257        12.9
SIAL     SIGMA-ALDRICH                5,105,316     4,525,207        12.8
JASO     JA SOLAR HOL-ADR            12,592,339    11,165,586        12.8
RICK     RICKS CABARET                  300,700       266,736        12.7
SXCI     SXC HEALTH SOLUT               561,862       498,454        12.7
AVAV     AEROVIRONMENT IN             1,860,455     1,652,184        12.6
ASIA     ASIAINFO-LINKAGE             7,396,525     6,569,967        12.6
TELK     TELIK INC                      313,014       278,588        12.4
NATI     NATL INSTRUMENTS             1,905,216     1,696,322        12.3
BSFT     BROADSOFT INC                8,456,328     7,530,966        12.3
AUTH     AUTHENTEC INC                  439,726       391,683        12.3
TAYC     TAYLOR CAPITAL                 872,814       777,945        12.2
MRCY     MERCURY COMPUTER             1,123,707     1,001,571        12.2
TQNT     TRIQUINT SEMICON            14,028,372    12,528,933        12.0
NUAN     NUANCE COMMUNICA            14,944,909    13,355,963        11.9
SYMC     SYMANTEC CORP               14,466,053    12,938,661        11.8
LOOP     LOOPNET INC                  1,382,792     1,238,947        11.6
GEOY     GEOEYE INC                   1,787,621     1,603,058        11.5
TTWO     TAKE-TWO INTERAC            15,858,006    14,223,767        11.5
DECK     DECKERS OUTDOOR              5,930,126     5,323,610        11.4
CPWR     COMPUWARE CORP               4,322,444     3,884,730        11.3
ASML     ASML HOLDING-NY              2,906,605     2,614,814        11.2
ANEN     ANAREN INC                     499,277       449,172        11.2
VIAB     VIACOM INC-B                 8,354,989     7,525,765        11.0
MDRX     ALLSCRIPTS HEALT             3,464,584     3,121,332        11.0
SCHN     SCHNITZER STEEL              1,515,941     1,365,925        11.0
WBMD     WEBMD HEALTH COR             3,545,242     3,194,509        11.0
GSAT     GLOBALSTAR INC              10,563,626     9,532,823        10.8
LTBR     LIGHTBRIDGE CORP               282,576       255,077        10.8
QQQ      POWERSH-QQQ                 73,497,691    66,401,791        10.7
LLTC     LINEAR TECH CORP             9,673,154     8,744,931        10.6
HAS      HASBRO INC                   7,424,693     6,714,920        10.6
BBBY     BED BATH &BEYOND             7,007,741     6,337,924        10.6
QGEN     QIAGEN NV                    9,272,824     8,389,831        10.5
HOTT     HOT TOPIC INC                2,489,350     2,253,768        10.5
GPRO     GEN-PROBE                      821,224       743,728        10.4
ZAGG     ZAGG INC                     9,671,200     8,762,960        10.4
MSCC     MICROSEMI CORP               3,480,358     3,153,884        10.4
SIFY     SIFY TECHNOL-ADR             2,849,175     2,589,340        10.0
ICLR     ICON PLC-ADR                 2,054,741     1,867,682        10.0
CAVM     CAVIUM INC                   6,099,774     5,546,654        10.0
ISIL     INTERSIL CORP-A              3,082,823     2,803,660        10.0

*-- Data includes ETF positions.

-- Bloomberg News

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