Largest Nasdaq Short Interest Changes as of Oct. 31

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

TOP 50 INCREASES


Ticker                                                                   
Symbol   Company                    Oct. 31        Oct. 14         Change    
=============================================================================
SIRI     SIRIUS XM RADIO          276,976,041    252,299,680     24,676,361
BPOP     POPULAR INC               18,614,250      7,210,000     11,404,250
QQQ      POWERSH-QQQ              116,341,268    107,740,192      8,601,076
GMCR     GREEN MOUNTAIN            24,748,979     17,068,121      7,680,858
NUAN     NUANCE COMMUNICA          15,339,183      8,039,631      7,299,552
RIMM     RESEARCH IN MOTI          46,371,993     40,334,119      6,037,874
ERIC     ERICSSON LM-ADR            6,906,145      3,285,970      3,620,175
RRD      RR DONNELLEY & S          21,872,782     18,625,930      3,246,852
FNBND    FNB UNITED CORP            3,523,934        467,721      3,056,213
STLD     STEEL DYNAMICS            10,337,349      7,352,939      2,984,410
SYMC     SYMANTEC CORP             12,777,998      9,911,649      2,866,349
STX      SEAGATE TECHNOLO          15,324,907     12,618,048      2,706,859
ERTS     ELECTRONIC ARTS           16,406,866     14,018,216      2,388,650
UTHR     UNITED THERAPEUT           8,659,038      6,295,850      2,363,188
HGSI     HUMAN GENOME SCI          20,140,024     17,845,725      2,294,299
ILMN     ILLUMINA INC              20,481,260     18,244,210      2,237,050
SQNM     SEQUENOM INC              20,636,096     18,525,651      2,110,445
ATML     ATMEL CORP                14,620,554     12,660,785      1,959,769
ATVI     ACTIVISION BLIZZ          17,121,405     15,308,144      1,813,261
AAXJ     ISHAR ASIA EX-JP           1,889,775         93,278      1,796,497
ESRX     EXPRESS SCRIPT            77,246,096     75,503,835      1,742,261
FULT     FULTON FINANCIAL           5,546,801      3,852,576      1,694,225
EXPE     EXPEDIA INC               18,016,270     16,322,112      1,694,158
FSLR     FIRST SOLAR INC           22,432,277     21,075,414      1,356,863
TSLA     TESLA MOTORS              24,934,508     23,587,621      1,346,887
DMND     DIAMOND FOODS             11,343,268     10,000,950      1,342,318
CERS     CERUS CORP                 6,628,081      5,398,263      1,229,818
EWBC     EAST WEST BNCRP            4,900,876      3,684,556      1,216,320
FITB     FIFTH THIRD BANC          19,756,238     18,593,551      1,162,687
JBHT     HUNT (JB) TRANS            5,399,944      4,240,107      1,159,837
XLNX     XILINX INC                21,322,240     20,206,639      1,115,601
PBCT     PEOPLE'S UNITED           11,359,525     10,284,835      1,074,690
VPRT     VISTAPRINT NV              8,093,043      7,028,376      1,064,667
DISCA    DISCOVERY COMM-A          10,423,035      9,397,217      1,025,818
HAS      HASBRO INC                 5,083,306      4,064,040      1,019,266
CTIC     CELL THERAPEUTIC          22,295,443     21,283,176      1,012,267
SVNT     SAVIENT PHARMACE          26,835,587     25,858,018        977,569
ITMN     INTERMUNE INC              6,582,361      5,604,978        977,383
AKAM     AKAMAI TECHNOLOG           8,501,975      7,533,114        968,861
CAR      AVIS BUDGET GROU          10,982,786     10,052,725        930,061
NWS      NEWS CORP-B                7,656,707      6,759,659        897,048
MAKO     MAKO SURGICAL              8,409,873      7,533,043        876,830
CDNS     CADENCE DESIGN            21,587,799     20,724,384        863,415
YNDX     YANDEX NV-A                2,898,619      2,050,916        847,703
CPWR     COMPUWARE CORP             6,004,045      5,162,106        841,939
HALO     HALOZYME THERAPE           5,288,642      4,455,250        833,392
PTEN     PATTERSON-UTI              7,900,719      7,070,823        829,896
CCOI     COGENT COMMUNICA           3,412,466      2,584,199        828,267
CY       CYPRESS SEMICON           10,054,635      9,240,417        814,218
BRKR     BRUKER CORP                3,620,155      2,828,836        791,319

TOP 50 DECREASES


Ticker                                                                   
Symbol   Company                    Oct. 31        Oct. 14         Change    
=============================================================================
YRCW     YRC WORLDWIDE IN          43,768,788     62,329,850    -18,561,062
MSFT     MICROSOFT CORP            60,634,137     77,420,416    -16,786,279
NWSA     NEWS CORP-A               42,804,342     51,785,855     -8,981,513
CSCO     CISCO SYSTEMS             71,877,446     80,654,410     -8,776,964
BRCD     BROCADE COMM SYS          10,993,026     19,756,722     -8,763,696
ORCL     ORACLE CORP               42,882,719     50,342,232     -7,459,513
YHOO     YAHOO! INC                32,153,365     39,527,540     -7,374,175
CMCSK    COMCAST CORP-SPL          16,247,984     23,441,446     -7,193,462
DELL     DELL INC                  55,643,889     60,641,671     -4,997,782
GILD     GILEAD SCIENCES           11,490,406     16,286,625     -4,796,219
NVDA     NVIDIA CORP               30,953,332     35,332,766     -4,379,434
SBUX     STARBUCKS CORP            11,540,730     15,287,879     -3,747,149
MRVL     MARVELL TECH GRP           7,543,153     11,115,213     -3,572,060
ACAS     AMERICAN CAPITAL           5,481,758      9,043,056     -3,561,298
JBLU     JETBLUE AIRWAYS           31,693,329     35,092,306     -3,398,977
JASO     JA SOLAR HOL-ADR           9,274,264     12,431,668     -3,157,404
CMCSA    COMCAST CORP-A            36,337,012     39,235,555     -2,898,543
PMCS     PMC-SIERRA INC             4,372,995      7,199,499     -2,826,504
AVII     AVI BIOPHARMA              7,618,031     10,411,830     -2,793,799
AMGN     AMGEN INC                 18,412,459     21,123,872     -2,711,413
QCOM     QUALCOMM INC              17,960,708     20,652,688     -2,691,980
BPFH     BOSTON PRIV FINL           7,234,403      9,909,046     -2,674,643
SGEN     SEATTLE GENETICS          22,856,560     25,284,446     -2,427,886
TLAB     TELLABS INC               10,814,553     13,227,952     -2,413,399
BSFT     BROADSOFT INC              5,412,363      7,704,357     -2,291,994
FAST     FASTENAL CO               27,880,336     30,140,725     -2,260,389
INTC     INTEL CORP               131,064,051    133,211,075     -2,147,024
AMAT     APPLIED MATERIAL          18,395,246     20,537,305     -2,142,059
FLEX     FLEXTRONICS INTL          11,864,844     13,922,603     -2,057,759
ADBE     ADOBE SYS INC             14,557,473     16,584,250     -2,026,777
DTV      DIRECTV-A                 16,092,572     18,061,867     -1,969,295
CIEN     CIENA CORP                23,472,175     25,427,116     -1,954,941
BRCM     BROADCOM CORP-A            6,011,394      7,879,843     -1,868,449
SATC     SATCON TECH               16,983,385     18,836,551     -1,853,166
AINV     APOLLO INV CORP            9,301,423     11,127,713     -1,826,290
BMRN     BIOMARIN PHARMAC           7,805,140      9,623,126     -1,817,986
WYNN     WYNN RESORTS LTD           5,051,515      6,838,304     -1,786,789
CELG     CELGENE CORP               8,013,351      9,784,252     -1,770,901
MAT      MATTEL INC                10,546,033     12,292,608     -1,746,575
HOGS     ZHONGPIN INC               5,583,514      7,314,055     -1,730,541
INCY     INCYTE CORP               15,062,458     16,722,017     -1,659,559
ARRS     ARRIS GROUP INC           11,871,100     13,496,905     -1,625,805
NPBC     NATL PENN BCSHS            8,505,456     10,078,637     -1,573,181
DGIT     DIGITAL GENERATI           1,993,552      3,551,897     -1,558,345
CSTR     COINSTAR INC               9,875,817     11,429,970     -1,554,153
CVBF     CVB FINANCIAL             12,105,933     13,651,021     -1,545,088
ASIA     ASIAINFO-LINKAGE           9,488,720     11,004,795     -1,516,075
ZIXI     ZIX CORP                   5,459,095      6,968,917     -1,509,822
VOLC     VOLCANO CORP               3,991,442      5,480,359     -1,488,917
ATPG     ATP OIL & GAS             17,777,092     19,263,955     -1,486,863

*-- Data includes ETF positions.

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