Largest Nasdaq Short Interest Changes as of Dec. 30

The following are the 50 largest short interest changes on the Nasdaq Stock Market as of the Dec. 30 settlement date. The table ranks the top 50 positive changes followed by the top negative changes.

TOP 50 INCREASES


Ticker                                                                   
Symbol   Company                    Dec. 30        Dec. 15         Change    
=============================================================================
MSFT     MICROSOFT CORP            67,807,732     55,791,002     12,016,730
TRIP     TRIPADVISOR INC            9,282,629         10,212      9,272,417
HGSI     HUMAN GENOME SCI          28,772,752     24,314,807      4,457,945
LRCX     LAM RESEARCH               7,961,370      4,303,536      3,657,834
SHLD     SEARS HOLDINGS            14,244,149     10,886,395      3,357,754
NTAP     NETAPP INC                22,517,962     19,261,137      3,256,825
WIN      WINDSTREAM CORP           31,314,388     28,767,578      2,546,810
GRPN     GROUPON INC               17,328,422     14,796,819      2,531,603
EXPE     EXPEDIA INC               11,234,515      8,710,763      2,523,752
GRFS     GRIFOLS SA-ADR             3,889,185      1,540,769      2,348,416
SIRI     SIRIUS XM RADIO          301,375,854    299,035,691      2,340,163
ESRX     EXPRESS SCRIPT            81,315,340     79,237,428      2,077,912
FNFG     FIRST NIAGARA FI          10,038,724      8,053,521      1,985,203
KITD     KIT DIGITAL INC           15,816,142     13,861,648      1,954,494
ATHN     ATHENAHEALTH INC           8,201,908      6,332,093      1,869,815
HCBK     HUDSON CITY BNCP          17,797,992     15,990,876      1,807,116
ALXA     ALEXZA PHARMACEU           2,708,709      1,001,772      1,706,937
SPPI     SPECTRUM PHARMAC           8,671,797      7,056,650      1,615,147
RAM      RAM ENERGY RESOU           1,887,726        293,895      1,593,831
DNDN     DENDREON CORP             32,904,162     31,343,596      1,560,566
DISH     DISH NETWORK-A             6,960,550      5,535,505      1,425,045
FNSR     FINISAR CORP              12,615,278     11,225,787      1,389,491
INFY     INFOSYS LTD-ADR           12,069,038     10,692,172      1,376,866
NKTR     NEKTAR THERAPEUT          18,922,412     17,580,162      1,342,250
NUAN     NUANCE COMMUNICA          12,109,447     10,774,986      1,334,461
EA       ELECTRONIC ARTS           16,035,513     14,720,398      1,315,115
AWAY     HOMEAWAY INC               4,877,202      3,597,700      1,279,502
WTSLA    WET SEAL INC -A           13,523,971     12,251,946      1,272,025
MAT      MATTEL INC                12,411,921     11,176,709      1,235,212
AMLN     AMYLIN PHARM INC          10,621,400      9,421,519      1,199,881
SGEN     SEATTLE GENETICS          26,583,831     25,396,308      1,187,523
UBNT     UBIQUITI NETWORK           2,034,809        892,004      1,142,805
RRD      RR DONNELLEY & S          27,839,290     26,700,646      1,138,644
CENX     CENTURY ALUMINUM           6,930,450      5,818,860      1,111,590
ATML     ATMEL CORP                12,988,342     11,921,178      1,067,164
VRTX     VERTEX PHARM               9,245,251      8,207,225      1,038,026
SOHU     SOHU.COM INC               4,079,561      3,060,746      1,018,815
VPRT     VISTAPRINT NV              9,967,591      9,027,537        940,054
OCZ      OCZ TECHNOLOGY            22,399,138     21,482,558        916,580
SFLY     SHUTTERFLY INC             8,370,913      7,516,131        854,782
CADX     CADENCE PHARMACE           7,936,789      7,096,910        839,879
DVAX     DYNAVAX TECHNOLO          15,145,186     14,326,661        818,525
JCOM     J2 GLOBAL INC              9,745,037      8,943,995        801,042
CRUS     CIRRUS LOGIC INC           5,930,665      5,145,172        785,493
INTU     INTUIT INC                 4,947,678      4,167,069        780,609
AGNC     AMERICAN CAPITAL           6,892,465      6,170,858        721,607
SLM      SLM CORP                   8,095,412      7,390,423        704,989
STLD     STEEL DYNAMICS             4,975,674      4,277,338        698,336
ONXX     ONYX PHARM                 6,489,219      5,795,476        693,743
HERO     HERCULES OFFSHOR          11,029,702     10,357,953        671,749

TOP 50 DECREASES


Ticker                                                                   
Symbol   Company                    Dec. 30        Dec. 15         Change    
=============================================================================
QQQ      POWERSH-QQQ               66,629,158    103,152,327    -36,523,169
AMGN     AMGEN INC                 19,377,253     38,611,875    -19,234,622
ORCL     ORACLE CORP               19,431,335     28,790,327     -9,358,992
NWSA     NEWS CORP-A               29,836,485     39,096,345     -9,259,860
CHRS     CHARMING SHOPPES          13,779,703     18,772,165     -4,992,462
RIMM     RESEARCH IN MOTI          37,523,671     42,495,693     -4,972,022
JDSU     JDS UNIPHASE               6,041,092     10,765,396     -4,724,304
CMCSA    COMCAST CORP-A            20,395,519     24,513,793     -4,118,274
DTV      DIRECTV-A                 15,019,306     19,025,690     -4,006,384
FMCN     FOCUS MEDIA-ADR            8,327,598     12,098,371     -3,770,773
CSCO     CISCO SYSTEMS             63,605,591     67,364,986     -3,759,395
BPAX     BIOSANTE PHARMA           17,386,999     21,060,234     -3,673,235
URBN     URBAN OUTFITTER           13,972,328     17,291,934     -3,319,606
AMAT     APPLIED MATERIAL           8,976,539     12,237,643     -3,261,104
INTC     INTEL CORP               117,479,241    120,548,516     -3,069,275
TXN      TEXAS INSTRUMENT          16,210,884     19,187,370     -2,976,486
TLAB     TELLABS INC                7,640,937     10,584,201     -2,943,264
GTAT     GT ADVANCED TECH          14,769,681     17,685,843     -2,916,162
GRMN     GARMIN LTD                15,301,076     18,209,299     -2,908,223
GMCR     GREEN MOUNTAIN            26,307,819     29,195,406     -2,887,587
FITB     FIFTH THIRD BANC          17,892,845     20,536,544     -2,643,699
DELL     DELL INC                  65,844,046     68,378,211     -2,534,165
AXAS     ABRAXAS PETRO             18,951,328     21,312,969     -2,361,641
FSLR     FIRST SOLAR INC           18,700,030     20,877,328     -2,177,298
VIAB     VIACOM INC-B               8,629,898     10,716,821     -2,086,923
FAST     FASTENAL CO               21,485,040     23,544,317     -2,059,277
CPWR     COMPUWARE CORP             4,773,421      6,763,762     -1,990,341
GERN     GERON CORP                 8,958,284     10,944,758     -1,986,474
ARIA     ARIAD PHARM               14,400,128     16,359,859     -1,959,731
CAR      AVIS BUDGET GROU           9,261,968     11,213,333     -1,951,365
BRCD     BROCADE COMM SYS           7,884,803      9,731,693     -1,846,890
PWER     POWER-ONE INC             10,942,576     12,763,737     -1,821,161
STX      SEAGATE TECHNOLO           8,916,772     10,652,414     -1,735,642
ROST     ROSS STORES INC            4,552,601      6,277,024     -1,724,423
ILMN     ILLUMINA INC              21,250,256     22,964,792     -1,714,536
KERX     KERYX BIOPHARM            10,995,014     12,676,243     -1,681,229
MPEL     MELCO CROWN-ADR            7,369,510      9,048,049     -1,678,539
XLNX     XILINX INC                12,771,306     14,441,918     -1,670,612
JRCC     JAMES RIVER COAL           8,877,032     10,545,627     -1,668,595
SPLS     STAPLES INC               23,451,897     25,112,728     -1,660,831
RCII     RENT-A-CENTER              3,972,401      5,509,980     -1,537,579
DRYS     DRYSHIPS INC              11,319,774     12,828,061     -1,508,287
AMZN     AMAZON.COM INC             7,340,912      8,834,607     -1,493,695
NVDA     NVIDIA CORP               19,335,032     20,823,924     -1,488,892
CHKP     CHECK POINT SOFT           2,998,298      4,473,663     -1,475,365
QCOM     QUALCOMM INC              16,435,762     17,892,421     -1,456,659
SATC     SATCON TECH               17,424,637     18,875,192     -1,450,555
AMCC     APPLIED MICRO CI           5,536,519      6,955,322     -1,418,803
AVNR     AVANIR PHARM INC          26,343,219     27,708,954     -1,365,735
UTHR     UNITED THERAPEUT           6,599,221      7,944,110     -1,344,889

*-- Data includes ETF positions.

-- Bloomberg News

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