Watch Live

Tweet TWEET

Largest Nasdaq Short Interest Changes as of Dec. 31

The following are the 50 largest short interest changes on the Nasdaq Stock Market as of the Dec. 31 settlement date. The table ranks the top 50 positive changes followed by the top negative changes.

TOP 50 INCREASES


Ticker                                                                   
Symbol   Company                    Dec. 31        Dec. 14         Change    
=============================================================================
RIMM     RESEARCH IN MOTI         137,065,866    119,621,568     17,444,298
PAYX     PAYCHEX INC               17,332,998     13,813,288      3,519,710
ONNN     ON SEMICONDUCTOR          14,021,789     11,504,901      2,516,888
ZNGA     ZYNGA INC- CL A           15,746,373     13,370,228      2,376,145
MYL      MYLAN INC                 31,692,505     29,560,750      2,131,755
BBBY     BED BATH &BEYOND           6,009,554      3,972,343      2,037,211
SWHC     SMITH & WESSON H          14,701,706     12,746,761      1,954,945
NPSP     NPS PHARM INC             10,281,157      8,566,761      1,714,396
SBAC     SBA COMM CORP-A           19,665,105     18,103,555      1,561,550
SCTY     SOLARCITY CORP             1,610,497         67,762      1,542,735
BRCD     BROCADE COMM SYS          22,699,738     21,217,310      1,482,428
DVAX     DYNAVAX TECHNOLO          18,642,853     17,236,104      1,406,749
VELT     VELTI PLC                 18,726,261     17,340,251      1,386,010
FAST     FASTENAL CO               15,872,995     14,487,956      1,385,039
OCLR     OCLARO INC                 7,258,293      5,893,277      1,365,016
CSTR     COINSTAR INC              12,971,530     11,708,856      1,262,674
ARRY     ARRAY BIOPHARMA            4,328,272      3,087,177      1,241,095
HAS      HASBRO INC                18,890,235     17,670,924      1,219,311
XXIA     IXIA                       3,798,347      2,632,762      1,165,585
MCRS     MICROS SYSTEMS             8,054,803      6,940,610      1,114,193
CTRP     CTRIP.COM-ADR             21,775,074     20,755,598      1,019,476
QQQ      POWERSH-QQQ               56,794,292     55,777,227      1,017,065
ADI      ANALOG DEVICES             6,496,590      5,482,854      1,013,736
PPHM     PEREGRINE PHARMA           5,950,019      4,974,970        975,049
ONCY     ONCOLYTICS BIO             6,659,851      5,696,124        963,727
AMRN     AMARIN CORP -ADR          24,677,345     23,714,691        962,654
LINE     LINN ENERGY LLC            3,546,151      2,593,511        952,640
MAT      MATTEL INC                 6,364,080      5,426,049        938,031
FITB     FIFTH THIRD BANC          12,676,019     11,754,041        921,978
PSEC     PROSPECT CAPITAL           7,071,929      6,173,186        898,743
ABMD     ABIOMED INC                8,586,618      7,696,700        889,918
ASBC     ASSOC BANC-CORP            7,803,704      6,915,543        888,161
OPTR     OPTIMER PHARMACE           8,950,468      8,070,381        880,087
MCHP     MICROCHIP TECH            19,425,555     18,558,236        867,319
VRSK     VERISK ANALYTI-A           1,265,091        409,205        855,886
PDLI     PDL BIOPHARMA IN          21,853,119     21,021,271        831,848
CTSH     COGNIZANT TECH-A           4,075,057      3,266,401        808,656
EGOV     NIC INC                    2,403,380      1,611,473        791,907
CTRX     CATAMARAN CORP             2,554,338      1,779,072        775,266
ARUN     ARUBA NETWORKS I          21,117,641     20,356,258        761,383
ACHN     ACHILLION PHARMA          12,878,912     12,122,347        756,565
CAKE     CHEESECAKE FACTO           6,522,646      5,789,654        732,992
GHDX     GENOMIC HEALTH I           2,384,216      1,687,161        697,055
LULU     LULULEMON ATH             14,782,678     14,086,466        696,212
INFI     INFINITY PHARMAC           4,453,191      3,790,766        662,425
ZION     ZIONS BANCORP             16,600,433     15,964,810        635,623
ISIS     ISIS PHARM                13,597,956     12,970,698        627,258
LMCA     LIBERTY MEDIA -A           1,333,096        712,420        620,676
NTRS     NORTHERN TRUST             6,514,742      5,914,216        600,526
NDAQ     NASDAQ OMX GROUP           4,992,168      4,402,552        589,616

TOP 50 DECREASES


Ticker                                                                   
Symbol   Company                    Dec. 31        Dec. 14         Change    
=============================================================================
FB       FACEBOOK INC-A            26,392,950     55,158,535    -28,765,585
CLWR     CLEARWIRE -CL A           15,811,107     33,216,450    -17,405,343
SIRI     SIRIUS XM RADIO          355,434,274    370,368,894    -14,934,620
INTC     INTEL CORP               215,503,710    229,603,159    -14,099,449
CSCO     CISCO SYSTEMS             53,667,165     62,925,327     -9,258,162
ORCL     ORACLE CORP               22,019,797     30,245,922     -8,226,125
GMCR     GREEN MOUNTAIN            32,024,836     39,865,556     -7,840,720
TXN      TEXAS INSTRUMENT          21,548,258     26,795,731     -5,247,473
MSFT     MICROSOFT CORP            87,341,701     92,489,588     -5,147,887
DELL     DELL INC                  61,350,767     65,864,388     -4,513,621
ARNA     ARENA PHARMACEUT          52,590,549     56,790,816     -4,200,267
ATVI     ACTIVISION BLIZZ          17,317,570     21,325,967     -4,008,397
GILD     GILEAD SCIENCES           25,617,927     29,433,511     -3,815,584
EBAY     EBAY INC                  10,107,555     13,811,878     -3,704,323
STX      SEAGATE TECHNOLO          44,884,406     48,516,257     -3,631,851
FLEX     FLEXTRONICS INTL           3,623,639      7,127,104     -3,503,465
MRVL     MARVELL TECH GRP           6,194,951      9,366,359     -3,171,408
NWSA     NEWS CORP-A               24,052,037     27,195,163     -3,143,126
MU       MICRON TECH               49,973,412     53,088,292     -3,114,880
MDLZ     MONDELEZ INTER-A           9,648,801     12,570,631     -2,921,830
SBUX     STARBUCKS CORP             8,293,334     11,089,054     -2,795,720
BMC      BMC SOFTWARE INC          13,462,869     16,028,223     -2,565,354
FMCN     FOCUS MEDIA-ADR           11,344,569     13,799,256     -2,454,687
WCRX     WARNER CHILCOT-A           3,125,463      5,534,360     -2,408,897
FSLR     FIRST SOLAR INC           22,253,545     24,639,609     -2,386,064
QCOM     QUALCOMM INC              13,535,257     15,876,617     -2,341,360
GTAT     GT ADVANCED TECH          35,717,570     38,050,165     -2,332,595
CPST     CAPSTONE TURBINE          36,832,299     39,158,828     -2,326,529
EXEL     EXELIXIS INC              39,381,231     41,658,590     -2,277,359
CME      CME GROUP INC              7,240,244      9,484,183     -2,243,939
TSLA     TESLA MOTORS              26,854,593     29,091,311     -2,236,718
DTV      DIRECTV                   12,313,640     14,533,135     -2,219,495
CELG     CELGENE CORP               4,681,701      6,865,892     -2,184,191
ADBE     ADOBE SYS INC             14,768,305     16,903,854     -2,135,549
CA       CA INC                     9,428,570     11,526,078     -2,097,508
NTAP     NETAPP INC                11,519,028     13,579,844     -2,060,816
AMAT     APPLIED MATERIAL          12,386,009     14,444,342     -2,058,333
SINA     SINA CORP                  3,417,041      5,451,581     -2,034,540
SYMC     SYMANTEC CORP              6,848,784      8,845,128     -1,996,344
TIVO     TIVO INC                  11,092,747     13,020,897     -1,928,150
LSI      LSI CORP                   7,907,958      9,825,282     -1,917,324
NIHD     NII HOLDING INC           60,694,819     62,546,423     -1,851,604
SLXP     SALIX PHARM                2,382,291      4,233,572     -1,851,281
STSI     STAR SCIENTIFIC           27,703,666     29,538,905     -1,835,239
SPPI     SPECTRUM PHARMAC          27,266,754     29,062,152     -1,795,398
ARMH     ARM HOLDINGS-ADR           3,988,579      5,772,511     -1,783,932
PLCM     POLYCOM INC               12,375,977     14,135,925     -1,759,948
INTU     INTUIT INC                 6,341,832      8,095,675     -1,753,843
NVDA     NVIDIA CORP               20,498,284     22,232,030     -1,733,746
NKTR     NEKTAR THERAPEUT          10,291,269     11,989,551     -1,698,282

*-- Data includes ETF positions.

-- Bloomberg News

To contact Bloomberg News for this story: newsdev@bloomberg.net

Press spacebar to pause and continue. Press esc to stop.

Bloomberg reserves the right to remove comments but is under no obligation to do so, or to explain individual moderation decisions.

Please enable JavaScript to view the comments powered by Disqus.