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Largest Nasdaq Short Interest Changes as of Feb. 28

The following are the 50 largest short interest changes on the Nasdaq Stock Market as of the Feb. 28 settlement date. The table ranks the top 50 positive changes followed by the top negative changes.

TOP 50 INCREASES


Ticker                                                                   
Symbol   Company                    Feb. 28        Feb. 15         Change    
=============================================================================
FTR      FRONTIER COMMUNI         227,601,135    211,680,559     15,920,576
MSFT     MICROSOFT CORP            97,885,936     83,582,893     14,303,043
BBRY     RESEARCH IN MOTI         147,214,984    136,511,698     10,703,286
INTC     INTEL CORP               216,006,917    208,197,763      7,809,154
SIRI     SIRIUS XM RADIO          414,016,386    406,288,219      7,728,167
MU       MICRON TECH               73,234,184     66,131,273      7,102,911
CMCSA    COMCAST CORP-A            30,950,558     23,961,762      6,988,796
WIN      WINDSTREAM CORP           70,310,783     63,755,503      6,555,280
CSCO     CISCO SYSTEMS             61,504,103     55,107,933      6,396,170
AFFY     AFFYMAX INC                7,923,275      2,977,338      4,945,937
NWSA     NEWS CORP-A               34,922,518     30,423,169      4,499,349
NUAN     NUANCE COMMUNICA          19,492,312     15,688,009      3,804,303
LBTYA    LIBERTY GLOBAL-A          19,199,449     15,605,486      3,593,963
TSLA     TESLA MOTORS              31,954,742     28,694,016      3,260,726
WEN      WENDY'S CO/THE            18,438,219     15,237,750      3,200,469
AKAM     AKAMAI TECHNOLOG           9,665,003      6,495,084      3,169,919
RFMD     RF MICRO DEVICES          12,970,633      9,802,875      3,167,758
FB       FACEBOOK INC-A            28,492,068     25,392,181      3,099,887
ARNA     ARENA PHARMACEUT          58,273,165     55,323,077      2,950,088
GTAT     GT ADVANCED TECH          38,256,065     35,321,072      2,934,993
AMKR     AMKOR TECH INC            19,438,549     16,525,536      2,913,013
PDLI     PDL BIOPHARMA IN          22,762,130     20,049,715      2,712,415
NTAP     NETAPP INC                17,368,171     14,746,756      2,621,415
DNDN     DENDREON CORP             50,422,540     47,878,848      2,543,692
ORCL     ORACLE CORP               38,195,551     35,662,465      2,533,086
SQNM     SEQUENOM INC              38,480,312     36,028,072      2,452,240
SYMC     SYMANTEC CORP             13,725,012     11,448,891      2,276,121
PBCT     PEOPLE'S UNITED           19,831,444     17,647,146      2,184,298
CMCSK    COMCAST CORP-SPL           7,305,926      5,160,684      2,145,242
DLTR     DOLLAR TREE INC            5,726,878      3,614,324      2,112,554
GT       GOODYEAR TIRE             11,876,378      9,788,394      2,087,984
PLCM     POLYCOM INC               13,068,362     11,043,372      2,024,990
JBLU     JETBLUE AIRWAYS           44,502,809     42,574,497      1,928,312
SBUX     STARBUCKS CORP            10,655,131      8,732,560      1,922,571
MDLZ     MONDELEZ INTER-A          13,695,797     11,810,180      1,885,617
BRCM     BROADCOM CORP-A            8,256,403      6,386,895      1,869,508
ARAY     ACCURAY INC                9,902,000      8,051,511      1,850,489
LBTYK    LIBERTY GLOBAL-C           8,982,811      7,180,093      1,802,718
DGIT     DIGITAL GENERATI           9,298,762      7,501,286      1,797,476
CELG     CELGENE CORP               5,534,096      3,736,784      1,797,312
IPGP     IPG PHOTONICS              9,416,477      7,649,045      1,767,432
ACLS     AXCELIS TECH INC           3,317,090      1,553,995      1,763,095
VIAB     VIACOM INC-B               6,563,556      4,836,990      1,726,566
PPHM     PEREGRINE PHARMA          12,700,807     11,006,470      1,694,337
ZIOP     ZIOPHARM ONCOLOG          13,954,955     12,342,096      1,612,859
NIHD     NII HOLDING INC           56,249,928     54,688,593      1,561,335
STRZA    STARZ - LIBERTY            6,785,124      5,273,284      1,511,840
FMER     FIRSTMERIT CORP           16,993,602     15,533,119      1,460,483
SPLS     STAPLES INC               78,101,124     76,697,269      1,403,855
STSI     STAR SCIENTIFIC           31,782,667     30,396,692      1,385,975

TOP 50 DECREASES


Ticker                                                                   
Symbol   Company                    Feb. 28        Feb. 15         Change    
=============================================================================
NTSP     NETSPEND HOLDING           1,171,635      9,436,949     -8,265,314
FITB     FIFTH THIRD BANC          20,089,395     25,248,398     -5,159,003
GRPN     GROUPON INC               27,514,056     31,921,765     -4,407,709
AMAT     APPLIED MATERIAL          17,151,756     21,183,654     -4,031,898
EA       ELECTRONIC ARTS           22,970,474     26,921,396     -3,950,922
QQQ      POWERSH-QQQ               52,955,650     56,749,742     -3,794,092
VMED     VIRGIN MEDIA INC          31,678,232     35,184,151     -3,505,919
VOD      VODAFONE GRP-ADR           5,241,841      7,829,367     -2,587,526
NVDA     NVIDIA CORP               16,533,989     19,069,121     -2,535,132
ATVI     ACTIVISION BLIZZ          18,495,002     20,964,992     -2,469,990
RRD      RR DONNELLEY & S          39,874,598     42,307,882     -2,433,284
ONNN     ON SEMICONDUCTOR           9,696,941     12,107,954     -2,411,013
LOGI     LOGITECH INTER-R          24,070,821     26,478,182     -2,407,361
STX      SEAGATE TECHNOLO          31,018,267     33,373,142     -2,354,875
AMGN     AMGEN INC                 14,877,548     17,176,652     -2,299,104
BRCD     BROCADE COMM SYS          16,193,304     18,485,708     -2,292,404
ERIC     ERICSSON LM-ADR            8,439,661     10,613,531     -2,173,870
ETRM     ENTEROMEDICS INC           1,564,159      3,597,425     -2,033,266
TTWO     TAKE-TWO INTERAC          15,103,303     17,122,076     -2,018,773
VCLK     VALUECLICK INC             5,719,452      7,628,274     -1,908,822
APKT     ACME PACKET INC            1,677,899      3,583,184     -1,905,285
CLSN     CELSION CORP               6,630,561      8,442,265     -1,811,704
AWAY     HOMEAWAY INC              10,018,123     11,726,507     -1,708,384
MCHP     MICROCHIP TECH            17,753,135     19,446,587     -1,693,452
EBAY     EBAY INC                  10,891,751     12,382,958     -1,491,207
GRMN     GARMIN LTD                12,911,420     14,369,312     -1,457,892
CREE     CREE INC                  15,249,719     16,687,985     -1,438,266
HAS      HASBRO INC                23,036,489     24,473,757     -1,437,268
CROX     CROCS INC                  4,376,832      5,813,517     -1,436,685
QGEN     QIAGEN NV                  6,872,056      8,169,117     -1,297,061
ARMH     ARM HOLDINGS-ADR           5,330,408      6,602,869     -1,272,461
DVAX     DYNAVAX TECHNOLO          17,812,131     19,058,154     -1,246,023
PTEN     PATTERSON-UTI             17,030,243     18,253,302     -1,223,059
MPEL     MELCO CROWN-ADR            5,447,082      6,657,363     -1,210,281
Z        ZILLOW INC-CL A            6,505,029      7,707,139     -1,202,110
QCOM     QUALCOMM INC              13,995,401     15,173,708     -1,178,307
ADI      ANALOG DEVICES             5,295,042      6,462,462     -1,167,420
KERX     KERYX BIOPHARM            10,743,095     11,880,824     -1,137,729
ONCY     ONCOLYTICS BIO             6,707,041      7,838,272     -1,131,231
OCZ      OCZ TECHNOLOGY            14,331,178     15,449,025     -1,117,847
CA       CA INC                     8,572,756      9,641,906     -1,069,150
ETFC     E*TRADE FINANCIA          19,065,555     20,102,590     -1,037,035
JDSU     JDS UNIPHASE               6,113,951      7,124,366     -1,010,415
ADSK     AUTODESK INC               2,248,938      3,239,697       -990,759
ANGI     ANGIE'S LIST INC           7,235,937      8,212,206       -976,269
HBAN     HUNTINGTON BANC           11,359,907     12,314,802       -954,895
STLD     STEEL DYNAMICS             5,986,090      6,932,786       -946,696
GPOR     GULFPORT ENERGY            5,179,257      6,113,014       -933,757
FTNT     FORTINET INC               3,230,366      4,156,996       -926,630
MRVL     MARVELL TECH GRP           6,171,570      7,019,746       -848,176

*-- Data includes ETF positions.

-- Bloomberg News

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