Largest Nasdaq Short Interest Positions as of July 29

The following are the 100 largest short interest positions on the Nasdaq Stock Market as of the July 29 settlement date.



Ticker                                                           Avg. Daily 
Symbol   Company                    July 29        July 15        Volume       
=============================================================================
SIRI     SIRIUS XM RADIO           295,983,703    274,572,534     64,234,999
LVLT     LEVEL 3 COMM INC          167,071,809    160,956,460     23,480,482
INTC     INTEL CORP                100,307,976    119,773,443     51,833,862
QQQ      POWERSH-QQQ                90,257,953    105,845,629     62,167,837
DELL     DELL INC                   77,673,467     80,984,759     20,911,925
MSFT     MICROSOFT CORP             74,416,322     75,135,797     78,432,183
CSCO     CISCO SYSTEMS              73,159,075     71,202,394     60,714,109
MU       MICRON TECH                61,391,878     56,463,084     36,279,472
ESRX     EXPRESS SCRIPT             54,954,687     38,609,665     16,598,029
YHOO     YAHOO! INC                 53,312,782     52,771,196     32,580,705
CLWR     CLEARWIRE -CL A            45,145,358     46,027,086      7,540,518
CPST     CAPSTONE TURBINE           43,919,047     44,387,798      2,484,578
JBLU     JETBLUE AIRWAYS            42,652,500     42,273,906      8,420,534
RIMM     RESEARCH IN MOTI           36,223,343     30,704,337     16,695,694
AVNR     AVANIR PHARM INC           35,392,914     33,045,497      2,333,180
NWSA     NEWS CORP-A                32,850,379     23,636,576     38,518,784
MYL      MYLAN INC                  32,547,396     32,199,023      5,584,954
SPLS     STAPLES INC                30,496,411     27,722,763     10,171,580
RRD      RR DONNELLEY & S           27,712,294     28,343,865      2,565,090
SGEN     SEATTLE GENETICS           24,538,935     22,918,750      1,904,507
ENTR     ENTROPIC COMMUNI           24,317,433     27,102,932      3,626,131
VMED     VIRGIN MEDIA INC           24,036,312     22,988,223      4,687,545
FAST     FASTENAL CO                23,505,757     24,199,808      2,018,611
CIEN     CIENA CORP                 23,417,178     22,029,835      6,355,329
SATC     SATCON TECH                23,397,799     23,402,809      1,963,692
SVNT     SAVIENT PHARMACE           23,172,367     22,658,187      1,135,910
PWER     POWER-ONE INC              23,168,301     22,529,395      3,036,070
XLNX     XILINX INC                 23,091,052     23,613,320      5,331,074
COCO     CORINTHIAN COLLE           22,476,354     24,153,535      1,494,585
ORCL     ORACLE CORP                22,139,901     25,592,040     28,765,515
GRMN     GARMIN LTD                 22,124,834     21,459,061        869,491
RFMD     RF MICRO DEVICES           20,850,586     22,748,542      7,161,647
ILMN     ILLUMINA INC               20,847,220     20,689,379      3,523,014
MNKD     MANNKIND CORP              20,757,371     20,371,240        566,405
WIN      WINDSTREAM CORP            20,684,155     19,917,171      3,935,232
NVDA     NVIDIA CORP                20,539,775     30,417,271     18,127,767
CMCSK    COMCAST CORP-SPL           20,407,567     22,274,504      4,283,044
AONE     A123 SYSTEMS INC           20,334,694     20,230,889      1,586,297
CDNS     CADENCE DESIGN             20,094,219     20,820,574      2,792,287
TIVO     TIVO INC                   19,830,034     19,918,061      2,013,498
CMCSA    COMCAST CORP-A             19,787,547     22,093,420     17,162,880
AXAS     ABRAXAS PETRO              19,751,904     19,024,007      2,304,301
ARNA     ARENA PHARMACEUT           19,629,138     19,247,483      2,123,432
ARUN     ARUBA NETWORKS I           19,483,525     18,426,228      4,389,857
SQNM     SEQUENOM INC               19,393,309     19,972,657      1,167,721
FSLR     FIRST SOLAR INC            19,375,956     20,078,015      1,023,574
TSLA     TESLA MOTORS               19,261,081     18,209,335      1,093,392
URBN     URBAN OUTFITTER            18,937,510     19,091,400      2,515,837
MCHP     MICROCHIP TECH             18,875,798     16,674,587      3,700,557
GTAT     GT ADVANCED TECH           18,813,154     18,725,874      3,887,885
AMAT     APPLIED MATERIAL           18,561,799     22,362,467     15,885,772
DTV      DIRECTV-A                  18,264,782     19,868,664      4,984,132
CTIC     CELL THERAPEUTIC           17,940,558     18,639,879      1,329,656
FLEX     FLEXTRONICS INTL           17,807,188     19,057,643      4,991,097
NTAP     NETAPP INC                 17,572,327     17,458,571      5,914,806
CIGX     STAR SCIENTIFIC            17,570,064     17,022,785      1,852,884
ERTS     ELECTRONIC ARTS            17,318,695     16,264,993      8,044,383
PDLI     PDL BIOPHARMA IN           17,069,576     17,019,948      2,216,900
SUSQ     SUSQUEHAN BNCSHS           16,984,938     16,907,646      1,243,531
DRYS     DRYSHIPS INC               16,972,613     15,690,852      8,618,565
VVUS     VIVUS INC                  16,805,943     17,365,453      1,079,357
ATPG     ATP OIL & GAS              16,771,262     16,487,413        952,893
JASO     JA SOLAR HOL-ADR           16,737,364     17,236,754      3,849,841
HERO     HERCULES OFFSHOR           16,575,891     15,758,593      4,195,396
SONS     SONUS NETWORKS             16,463,561     15,232,788      2,584,134
DNDN     DENDREON CORP              16,447,917     16,072,114      1,689,939
EXPE     EXPEDIA INC                16,320,614     20,975,149      5,783,488
CERN     CERNER CORP                16,219,294     16,281,747      1,313,826
ATML     ATMEL CORP                 16,181,933     18,218,347      7,682,318
ZION     ZIONS BANCORP              16,045,104     17,054,359      3,940,718
CREE     CREE INC                   15,867,272     15,741,327      3,306,709
QCOM     QUALCOMM INC               15,619,609     17,481,935     16,364,796
INCY     INCYTE CORP                15,356,193     14,546,283      1,429,458
STX      SEAGATE TECHNOLO           15,291,417     11,819,972     14,970,165
GMCR     GREEN MOUNTAIN             15,077,580     16,112,509      3,011,048
CADX     CADENCE PHARMACE           14,937,896     15,204,290        330,739
TLAB     TELLABS INC                14,805,221     15,551,077      6,959,387
ONNN     ON SEMICONDUCTOR           14,678,165     16,601,511      8,094,590
OCZ      OCZ TECHNOLOGY             14,492,084     15,165,033      1,557,730
ATVI     ACTIVISION BLIZZ           14,473,096     14,304,875      6,641,205
BRCD     BROCADE COMM SYS           14,391,684     14,418,583     13,818,666
ARIA     ARIAD PHARM                14,349,240     14,327,110      3,906,426
BPAX     BIOSANTE PHARMA            14,129,763     14,440,287      3,173,277
CVBF     CVB FINANCIAL              14,116,083     14,578,082        729,773
ADBE     ADOBE SYS INC              13,880,916     13,352,635      5,740,961
HGSI     HUMAN GENOME SCI           13,846,162     17,693,879      4,615,309
LOGI     LOGITECH INTER-R           13,841,633     14,403,634      1,807,634
GERN     GERON CORP                 13,782,817     13,305,370      1,384,234
WTSLA    WET SEAL INC -A            13,725,777     14,521,787      1,186,473
CAR      AVIS BUDGET GROU           13,701,165     13,919,633      1,351,124
PWAV     POWERWAVE TECH             13,679,317      8,648,586      3,154,742
AMTD     TD AMERITRADE HO           13,634,825     17,673,401      6,982,252
CA       CA INC                     13,617,391     12,535,174      5,671,823
ENER     ENERGY CONV DEV            13,373,166     13,368,397        722,118
HBAN     HUNTINGTON BANC            13,111,492     13,966,082     22,578,457
LULU     LULULEMON ATH              13,092,230     13,697,273      2,392,015
EBIX     EBIX INC                   13,023,378     12,797,524        664,639
ALTR     ALTERA CORP                12,826,710     11,952,737      6,245,294
YRCW     YRC WORLDWIDE IN           12,787,946     12,985,805      4,740,772
AMKR     AMKOR TECH INC             12,668,331     13,252,453      2,522,020

*-- Data includes ETF positions.

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