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Largest Nasdaq Short Interest Positions as of Dec. 31

The following are the 100 largest short interest positions on the Nasdaq Stock Market as of the Dec. 31 settlement date.



Ticker                                                           Avg. Daily 
Symbol   Company                    Dec. 31        Dec. 15        Volume       
=============================================================================
SIRI     SIRIUS XM RADIO           213,077,965    225,721,127     51,516,146
LVLT     LEVEL 3 COMM INC          131,913,166    147,372,915     16,560,919
MSFT     MICROSOFT CORP             85,210,953     84,467,252     37,647,656
QQQQ     POWERSH-QQQ                77,109,295     70,802,783     35,236,354
MU       MICRON TECH                72,845,090     74,443,232     24,401,961
YHOO     YAHOO! INC                 62,187,182     62,124,985     11,187,230
CMCSA    COMCAST CORP-A             59,852,021     53,173,533     12,846,085
DELL     DELL INC                   57,536,890     56,033,782     15,483,147
CTIC     CELL THERAPEUTIC           57,271,366     58,729,323      2,788,308
INTC     INTEL CORP                 48,402,022     58,461,708     30,363,820
CSCO     CISCO SYSTEMS              41,156,401     41,584,747     52,775,994
JBLU     JETBLUE AIRWAYS            40,783,497     42,619,163      2,979,099
PWER     POWER-ONE INC              38,992,076     38,246,696      2,956,471
HBAN     HUNTINGTON BANC            35,071,824     33,838,827     26,524,567
XLNX     XILINX INC                 30,723,091     27,346,485      6,032,216
CLWR     CLEARWIRE -CL A            30,545,226     31,324,582      3,156,707
ARNA     ARENA PHARMACEUT           30,362,019     33,744,622     12,488,870
ORCL     ORACLE CORP                30,283,207     32,867,893     25,442,578
MYL      MYLAN INC                  29,940,590     27,512,159      4,276,008
NWSA     NEWS CORP-A                29,635,183     37,043,124      9,376,382
CIEN     CIENA CORP                 28,285,686     28,139,366      4,847,398
LOGI     LOGITECH INTL-R            28,161,211     27,968,427      1,955,726
VMED     VIRGIN MEDIA INC           27,989,711     27,411,030      1,649,285
JASO     JA SOLAR HOL-ADR           26,713,317     24,223,482      5,502,608
NVDA     NVIDIA CORP                26,634,255     32,650,279      9,110,799
ATVI     ACTIVISION BLIZZ           26,528,333     31,356,014      6,840,982
GMCR     GREEN MOUNTAIN             26,411,224     28,552,090      2,041,591
RIMM     RESEARCH IN MOTI           26,405,434     28,458,870     10,189,872
AMTD     TD AMERITRADE HO           24,310,891     26,084,403      2,169,790
FITB     FIFTH THIRD BANC           24,157,563     24,386,461     10,512,486
GRMN     GARMIN LTD                 23,479,596     23,231,651      1,549,150
CPST     CAPSTONE TURBINE           22,917,031     23,080,312      2,767,603
QCOM     QUALCOMM INC               22,867,461     25,808,719      9,402,138
COCO     CORINTHIAN COLLE           22,762,046     24,433,922      4,970,248
EBAY     EBAY INC                   22,061,260     25,499,310      9,411,484
ENTR     ENTROPIC COMMUNI           22,034,983     19,997,124      1,945,214
FNFG     FIRST NIAGARA FI           21,861,751     21,305,033      1,860,561
DRYS     DRYSHIPS INC               21,611,301     18,928,213     12,945,685
AMAT     APPLIED MATERIAL           21,498,580     21,530,987      9,348,782
MNKD     MANNKIND CORP              21,476,543     19,195,611      4,036,343
ALTR     ALTERA CORP                21,323,370     27,397,755      5,093,221
ERIC     ERICSSON LM-ADR            21,128,888     20,927,098      3,679,567
CREE     CREE INC                   20,381,315     22,133,498      2,248,540
GENZ     GENZYME CORP               20,049,233     21,479,943      1,944,730
CDNS     CADENCE DESIGN             19,245,362     20,815,301      1,753,327
CVBF     CVB FINANCIAL              18,934,121     19,456,297        490,392
ERTS     ELECTRONIC ARTS            18,752,155     17,181,076      3,666,290
ONNN     ON SEMICONDUCTOR           18,430,046     18,977,106      4,590,675
LBTYA    LIBERTY GLOBAL-A           18,262,359     19,359,622      1,024,685
ZION     ZIONS BANCORP              18,095,440     18,412,188      3,272,970
SQNM     SEQUENOM INC               17,943,624     16,648,978      2,125,526
PBCT     PEOPLE'S UNITED            17,602,026     18,184,742      2,629,819
DISCA    DISCOVERY COMM-A           17,286,335     18,293,219      1,174,861
NTAP     NETAPP INC                 17,263,096     18,478,716      2,772,592
PTEN     PATTERSON-UTI              17,009,814     18,404,314      1,582,916
ATPG     ATP OIL & GAS              16,487,620     17,027,358      1,520,029
FSLR     FIRST SOLAR INC            16,298,011     16,433,232      1,162,515
WIN      WINDSTREAM CORP            16,146,509     18,233,548      4,171,409
FAST     FASTENAL CO                16,127,850     16,743,402        661,460
GILD     GILEAD SCIENCES            16,108,988     18,793,030      7,794,902
URBN     URBAN OUTFITTER            16,059,316     15,710,420      1,862,042
MCHP     MICROCHIP TECH             15,938,296     17,919,999      1,484,809
SYMC     SYMANTEC CORP              15,917,442     20,139,877      5,681,552
RFMD     RF MICRO DEVICES           15,727,580     18,278,767      3,778,156
ISIL     INTERSIL CORP-A            15,689,210     15,763,871      1,152,683
INCY     INCYTE CORP                15,499,367     15,641,457      2,006,671
SPLS     STAPLES INC                15,494,178     15,025,687      5,138,685
AMGN     AMGEN INC                  15,291,984     14,336,938      6,789,725
AVNR     AVANIR PHARM INC           15,226,002     13,423,343      2,721,178
NUAN     NUANCE COMMUNICA           14,838,505     16,227,495      1,156,245
TLAB     TELLABS INC                14,778,208     17,031,750      3,051,914
HGSI     HUMAN GENOME SCI           14,767,476     15,251,867      1,794,997
NWS      NEWS CORP-B                14,600,250     15,314,655        964,462
SWKS     SKYWORKS SOLUTIO           14,584,293     15,093,846      2,410,731
BRCD     BROCADE COMM SYS           14,571,302     14,517,269      8,186,466
CAR      AVIS BUDGET GROU           14,478,653     15,869,309      1,022,929
AMKR     AMKOR TECH INC             14,429,745     15,703,035        912,903
TIVO     TIVO INC                   14,425,325     14,981,140      1,184,327
NETL     NETLOGIC MICROSY           14,192,677     14,903,104        885,997
ACAS     AMERICAN CAPITAL           14,182,599     16,990,089      2,486,347
CINF     CINCINNATI FIN             14,102,015     13,934,197        798,688
ARUN     ARUBA NETWORKS I           13,965,730     14,328,322      1,689,456
EXPE     EXPEDIA INC                13,894,035     13,512,373      3,587,241
CADX     CADENCE PHARMACE           13,853,887     13,744,037        330,675
SATC     SATCON TECH                13,577,763     13,428,587      1,888,558
LLTC     LINEAR TECH CORP           13,533,554     13,095,282      1,460,848
SGEN     SEATTLE GENETICS           13,455,497     13,746,597        650,700
SVNT     SAVIENT PHARMACE           13,423,239     13,644,190      1,763,129
ASBC     ASSOC BANC-CORP            13,381,548     12,512,523        933,457
AMLN     AMYLIN PHARM INC           13,355,663     12,240,774      1,782,682
SPWRA    SUNPOWER CORP-A            13,093,263     13,593,301      1,146,648
FLEX     FLEXTRONICS INTL           13,063,462     17,615,517      4,139,958
CIGX     STAR SCIENTIFIC            12,876,828     13,323,930      1,032,057
IDTI     INTEGRAT DEVICE            12,795,790     13,951,230      1,783,101
VECO     VEECO INSTRUMENT           12,650,117     13,758,466      2,404,131
SBAC     SBA COMM CORP-A            12,589,708     11,943,618        589,759
DNDN     DENDREON CORP              12,505,464     12,281,281      1,799,146
VRTX     VERTEX PHARM               12,456,153     12,050,258      1,449,067
DTV      DIRECTV-A                  12,412,328     18,833,643      8,490,897
VVUS     VIVUS INC                  12,371,336     14,177,909      1,672,728

*-- Data includes ETF positions.

-- Bloomberg News To contact Bloomberg News for this story: +1-212-318-2000 or newsdev@bloomberg.net

-0- Jan/11/2011 23:21 GMT

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