Largest Nasdaq Short Interest Percent Increases as of Feb. 29

The following are the 200 largest short interest percent increases on the Nasdaq Stock Market as of the Feb. 29 settlement date. This list includes securities with a short position of at least 200,000 shares.



Ticker                                                                     
Symbol   Company                        Feb. 29       Feb. 15      % Change   
=============================================================================
QLGC     QLOGIC CORP                  4,592,353     1,742,599       163.5
NYMT     NEW YORK MTGE                  876,112       345,889       153.3
MTGE     AMERICAN CAPITAL             1,220,583       492,516       147.8
GSVC     GSV CAPITAL CORP               530,623       224,517       136.3
GNOM     COMPLETE GENOMIC             3,533,518     1,570,811       124.9
ACHC     ACADIA HEALTHCAR               604,867       280,863       115.4
DSCO     DISCOVERY LABS               2,075,705     1,071,160        93.8
SQQQ     PROSHARES UL SHO               903,722       467,720        93.2
LSTR     LANDSTAR SYSTEM              1,044,701       552,544        89.1
ACAS     AMERICAN CAPITAL             3,613,810     1,912,088        89.0
RYAAY    RYANAIR HLDG-ADR             1,899,064     1,089,596        74.3
MNST     MONSTER BEVERAGE             2,949,139     1,713,060        72.2
GMLP     GOLAR LNG PARTNE               382,176       223,986        70.6
OREX     OREXIGEN THERAPE             5,463,585     3,235,390        68.9
LQDT     LIQUIDITY SERVIC             1,700,382     1,015,285        67.5
LOOP     LOOPNET INC                  2,243,136     1,382,792        62.2
VPFG     VIEWPOINT FINANC             1,667,778     1,028,277        62.2
DISCK    DISCOVERY COMM-C               320,775       207,074        54.9
TSEM     TOWER SEMICONDCT             1,379,779       905,716        52.3
MSG      MADISON SQUARE-A               992,251       651,578        52.3
SAVE     SPIRIT AIRLINES              1,256,744       828,704        51.7
STEM     STEMCELLS INC                1,433,698       955,148        50.1
PMTC     PARAMETRIC TECH              5,062,888     3,396,654        49.1
EXTR     EXTREME NETWORKS             3,765,214     2,557,826        47.2
NTGR     NETGEAR INC                  1,631,131     1,116,484        46.1
RAIL     FREIGHTCAR AMERI               781,773       538,603        45.1
CHTP     CHELSEA THERAPEU             6,951,076     4,819,259        44.2
PACB     PACIFIC BIOSCIEN             4,547,155     3,174,960        43.2
LLEN     L&L ENERGY INC               3,219,351     2,252,134        42.9
FISV     FISERV INC                   2,101,208     1,472,416        42.7
ACTG     ACACIA RESEARCH              2,277,757     1,607,577        41.7
CLMT     CALUMET SPECIALT               307,291       218,856        40.4
CNVO     CONVIO INC                   2,740,211     1,955,610        40.1
FOLD     AMICUS THERAPEUT             1,088,027       777,869        39.9
TNGO     TANGOE INC/CT                2,165,937     1,550,906        39.7
AKRX     AKORN INC                    7,997,951     5,766,121        38.7
LABL     MULTI-COLOR CORP               348,736       252,438        38.1
FSLR     FIRST SOLAR INC             18,602,299    13,685,921        35.9
SIMO     SILICON MOTI-ADR             2,087,621     1,558,755        33.9
ACWI     ISHARES MSCI ACW               300,182       224,947        33.4
EBAY     EBAY INC                    13,684,277    10,269,312        33.3
MDAS     MEDASSETS INC                2,024,088     1,521,459        33.0
DGIT     DIGITAL GENERATI             2,817,626     2,143,768        31.4
ARII     AMERICAN RAILCAR               434,604       331,362        31.2
AMAP     AUTONAVI HOL-ADR               315,919       243,770        29.6
HK       HALCON RESOURCES             3,986,636     3,093,822        28.9
CFFN     CAPITOL FEDERAL              2,404,244     1,882,763        27.7
ATML     ATMEL CORP                  18,392,869    14,412,276        27.6
PAAS     PAN AMER SILVER              7,378,766     5,787,984        27.5
LBTYK    LIBERTY GLOBAL-C               341,323       268,114        27.3
LIFE     LIFE TECHNOLOGIE             5,586,997     4,391,100        27.2
NICE     NICE SYSTEMS-ADR               506,693       399,444        26.8
FWLT     FOSTER WHEELER               2,514,107     1,982,006        26.8
EXLS     EXLSERVICE HOLDI               451,756       356,570        26.7
AMZN     AMAZON.COM INC              10,872,350     8,592,084        26.5
NWPX     NORTHWEST PIPE                 400,126       316,720        26.3
CMCO     COLUMBUS MCKI/NY               494,282       393,557        25.6
NIHD     NII HOLDING INC              8,423,234     6,726,843        25.2
MERC     MERCER INTERNATI               765,893       611,786        25.2
DARA     DARA BIOSCIENCES               296,544       237,345        24.9
SIFY     SIFY TECHNOL-ADR             3,557,441     2,849,175        24.9
ATMI     ATMI INC                     1,093,830       876,915        24.7
TECH     TECHNE CORP                    829,041       666,148        24.5
CBOE     CBOE HOLDINGS IN             4,880,807     3,922,912        24.4
GTLS     CHART INDUSTRIES             2,326,127     1,870,078        24.4
IRWD     IRONWOOD PHARMAC             7,397,288     5,947,599        24.4
CPNO     COPANO ENERGY-UN               730,781       588,230        24.2
CSOD     CORNERSTONE ONDE             2,255,129     1,819,282        24.0
ASML     ASML HOLDING-NY              3,594,268     2,906,605        23.7
HZNP     HORIZON PHARMA I               932,488       755,820        23.4
IPCM     IPC THE HOSPITAL             2,136,716     1,734,975        23.2
ISIL     INTERSIL CORP-A              3,793,491     3,082,823        23.1
MKTG     RESPONSYS INC                  605,490       492,969        22.8
CHRW     CH ROBINSON                  7,552,929     6,160,314        22.6
GEVO     GEVO INC                     1,069,217       872,820        22.5
AGNC     AMERICAN CAPITAL            10,923,842     8,931,373        22.3
MNKD     MANNKIND CORP               17,807,397    14,606,250        21.9
SUSS     SUSSER HOLDINGS                533,668       439,776        21.3
VRNT     VERINT SYSTEMS               1,234,566     1,018,350        21.2
SPIL     SILICONWARE-ADR              3,979,000     3,299,455        20.6
ZINC     HORSEHEAD HOLING             4,299,729     3,572,027        20.4
ANSS     ANSYS INC                    1,101,147       915,898        20.2
ARTC     ARTHROCARE CORP              1,113,966       926,860        20.2
EA       ELECTRONIC ARTS             20,853,208    17,401,393        19.8
WRLD     WORLD ACCEPTANCE             2,337,619     1,951,427        19.8
CARB     CARBONITE INC                  923,367       771,304        19.7
MOLXA    MOLEX INC -A                   240,215       201,464        19.2
BEAV     BE AEROSPACE                 3,045,909     2,557,450        19.1
WIN      WINDSTREAM CORP             37,272,952    31,388,574        18.7
CHOP     CHINA GERUI ADV                960,226       808,760        18.7
CTRP     CTRIP.COM-ADR               10,868,884     9,172,262        18.5
AIXG     AIXTRON SE-ADR               2,908,583     2,456,155        18.4
EGLE     EAGLE BULK SHIPP             9,153,003     7,735,395        18.3
EROC     EAGLE ROCK ENERG             1,359,265     1,151,604        18.0
SABA     SABA SOFTWARE                1,299,215     1,102,425        17.9
LTXC     LTX-CREDENCE COR             1,590,880     1,350,742        17.8
ATVI     ACTIVISION BLIZZ            25,104,682    21,390,623        17.4
HOTT     HOT TOPIC INC                2,921,009     2,489,350        17.3
PAYX     PAYCHEX INC                  9,029,011     7,716,674        17.0
DTLK     DATALINK CORP                  321,934       275,541        16.8
NMRX     NUMEREX CORP-A                 389,479       333,902        16.6
IPGP     IPG PHOTONICS                3,755,717     3,226,378        16.4
HSTM     HEALTHSTREAM INC             1,128,037       969,596        16.3
EQIX     EQUINIX INC                  6,815,338     5,862,879        16.2
BPOP     POPULAR INC                 15,867,882    13,721,890        15.6
CMCSK    COMCAST CORP-SPL             6,687,136     5,789,581        15.5
COHR     COHERENT INC                   669,323       579,993        15.4
DRYS     DRYSHIPS INC                12,017,050    10,420,753        15.3
HWAY     HEALTHWAYS INC               2,611,058     2,264,580        15.3
BLDR     BUILDERS FIRSTSO             2,533,352     2,197,853        15.3
AMTD     TD AMERITRADE HO             6,341,322     5,507,562        15.1
CPRT     COPART INC                     722,519       628,622        14.9
OGXI     ONCOGENEX PHARMA               404,878       352,329        14.9
CDTI     CLEAN DIESEL                   534,156       466,049        14.6
SGMO     SANGAMO BIOSCIEN             4,732,038     4,130,652        14.6
LOPE     GRAND CANYON EDU             2,127,276     1,857,276        14.5
UEPS     NET 1 UEPS TECH                233,390       203,787        14.5
WABC     WESTAMERICA BANC             2,511,939     2,197,223        14.3
QLTY     QUALITY DISTRIBU               501,034       438,703        14.2
THRX     THERAVANCE                   7,559,961     6,625,073        14.1
GBDC     GOLUB CAPITAL BD               352,935       309,290        14.1
IDIX     IDENIX PHARM                10,072,840     8,829,013        14.1
WBMD     WEBMD HEALTH COR             4,034,524     3,545,242        13.8
SKUL     SKULLCANDY INC               7,816,658     6,872,232        13.7
FTNT     FORTINET INC                 2,615,194     2,300,189        13.7
Z        ZILLOW INC                   1,031,894       909,134        13.5
IPXL     IMPAX LABS INC               4,967,893     4,380,563        13.4
QCOM     QUALCOMM INC                15,880,341    14,017,464        13.3
SIAL     SIGMA-ALDRICH                5,783,361     5,105,316        13.3
ABMD     ABIOMED INC                  4,784,870     4,223,926        13.3
BODY     BODY CENTRAL COR             1,470,471     1,299,089        13.2
HMIN     HOME INNS & -ADR             5,800,825     5,126,899        13.1
FLDM     FLUIDIGM CORP                1,207,812     1,067,932        13.1
KLAC     KLA-TENCOR CORP              9,101,030     8,067,774        12.8
HTCH     HUTCHINSON TECH              1,459,608     1,295,415        12.7
EXEL     EXELIXIS INC                18,016,081    15,996,442        12.6
MDRX     ALLSCRIPTS HEALT             3,900,879     3,464,584        12.6
ABCO     ADVISORY BOARD                 918,350       817,906        12.3
TRAK     DEALERTRACK HOLD             1,450,639     1,293,846        12.1
VECO     VEECO INSTRUMENT             9,314,387     8,312,046        12.1
ALNY     ALNYLAM PHARMACE             4,134,129     3,694,659        11.9
CTFO     CHINA TRANSINFO                244,456       218,525        11.9
LINE     LINN ENERGY LLC              1,283,890     1,148,122        11.8
DECK     DECKERS OUTDOOR              6,627,149     5,930,126        11.8
WMGI     WRIGHT MED GROUP             4,691,751     4,206,882        11.5
BIOF     BIOFUEL ENERGY C             1,920,597     1,722,729        11.5
LTBR     LIGHTBRIDGE CORP               314,548       282,576        11.3
DISH     DISH NETWORK-A               1,213,042     1,089,766        11.3
NATI     NATL INSTRUMENTS             2,115,873     1,905,216        11.1
MCRS     MICROS SYSTEMS                 790,420       711,728        11.1
WINN     WINN-DIXIE STORE             8,724,152     7,856,823        11.0
MSFT     MICROSOFT CORP              61,489,992    55,428,243        10.9
EXLP     EXTERRAN PARTNER               300,180       270,670        10.9
SLRC     SOLAR CAPITAL LT             1,577,649     1,425,132        10.7
IBB      ISHARES-NDQ BIOT             6,904,237     6,238,530        10.7
SGI      SILICON GRAPHICS             7,881,690     7,125,315        10.6
FSYS     FUEL SYSTEMS SOL             2,215,404     2,003,111        10.6
SNDK     SANDISK CORP                 7,401,337     6,695,962        10.5
GTAT     GT ADVANCED TECH            18,080,118    16,357,913        10.5
LUFK     LUFKIN INDS                  2,428,742     2,197,935        10.5
CTSH     COGNIZANT TECH-A             3,203,971     2,900,292        10.5
NNBR     NN INC                         910,356       824,754        10.4
ZIP      ZIPCAR INC                   5,172,323     4,686,719        10.4
NEPT     NEPTUNE TECH&BIO               340,660       308,684        10.4
SWKS     SKYWORKS SOLUTIO             7,768,027     7,040,124        10.3
DNKN     DUNKIN' BRANDS G             6,242,585     5,659,919        10.3
BMRN     BIOMARIN PHARMAC            10,964,360     9,955,274        10.1
FRP      FAIRPOINT COMMUN             3,017,763     2,742,008        10.1
ZAZA     ZAZA ENERGY CORP               623,185       566,447        10.0
MOBI     SKY-MOBI LTD-ADR               458,735       417,295         9.9
ROYL     ROYALE ENERGY                1,637,469     1,489,557         9.9
CALD     CALLIDUS SOFTWAR             3,372,942     3,069,084         9.9
AAWW     ATLAS AIR WORLDW             1,253,335     1,141,868         9.8
ARMH     ARM HOLDINGS-ADR             6,002,943     5,470,957         9.7
PEIX     PACIFIC ETHANOL              3,161,905     2,884,959         9.6
NTWK     NETSOL TECH INC                439,866       401,457         9.6
NFBK     NORTHFIELD BANCO             1,078,228       984,183         9.6
MPAA     MOTORCAR PARTS                 579,314       528,858         9.5
OPWV     OPENWAVE SYSTEMS             2,607,921     2,380,983         9.5
ERIC     ERICSSON LM-ADR              8,999,396     8,217,390         9.5
ACAT     ARCTIC CAT INC                 457,798       418,312         9.4
ARNA     ARENA PHARMACEUT            25,332,031    23,163,201         9.4
SWHC     SMITH & WESSON H             2,564,733     2,347,000         9.3
CMTL     COMTECH TELECOMM             2,436,806     2,230,222         9.3
XLNX     XILINX INC                  12,621,068    11,569,982         9.1
CINF     CINCINNATI FIN               8,754,871     8,028,048         9.1
MSPD     MINDSPEED TECHNO             1,628,357     1,493,970         9.0
HOLX     HOLOGIC INC                  3,482,677     3,196,650         8.9
PFCB     PF CHANG'S CHINA             4,444,042     4,079,062         8.9
DAKT     DAKTRONICS INC               1,020,903       937,069         8.9
ORIT     ORITANI FINANCIA             2,114,051     1,942,362         8.8
WETF     WISDOMTREE INVES             1,604,284     1,475,052         8.8
RLOC     REACHLOCAL INC               1,038,311       955,990         8.6
SFLY     SHUTTERFLY INC               6,419,345     5,913,502         8.6
MYRG     MYR GROUP INC/DE               589,541       543,209         8.5
RDEA     ARDEA BIOSCIENCE             1,841,699     1,697,526         8.5
CLWR     CLEARWIRE -CL A             35,614,379    32,834,437         8.5
JASO     JA SOLAR HOL-ADR            13,654,116    12,592,339         8.4
MDCI     MED ACTION INDS                351,279       324,044         8.4
GGAL     GRUPO GALICI-ADR             2,923,733     2,697,200         8.4

*-- Data includes ETF positions.

-- Bloomberg News

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