Top 10 Best-Performing NASDAQ Stocks: OSIR, WPRT, ACHN, ATPG, NPSP, PCYC, CLNE, RVBD, SIMO, MLNX (May 21, 2012)

Top 10 Nasdaq-traded stocks posting largest percentage gainers are usually going up  with news.If you are looking to day trade, you might want to check out the following stocks. I usually throw these on my watch list and monitor with resistance &  support levels.Below are the top 10 best-performing  NASDAQ  today.Also more stock to watch for today   Right Here.

I also have  technical analysis different stocks-Right Here.

Below these are the Best Performing NASDAQ stocks on May 21, 2012.  

Ticker    Company    Performance 
OSIR    Osiris Therapeutics, Inc.    14.59%
WPRT    Westport Innovations Inc.    11.93%
ACHN    Achillion Pharmaceuticals, Inc.    10.92%
ATPG    ATP Oil & Gas Corp.    10.82%
NPSP    NPS Pharmaceuticals, Inc.    9.68%
PCYC    Pharmacyclics Inc.    9.37%
CLNE    Clean Energy Fuels Corp.    9.21%
RVBD    Riverbed Technology, Inc.    8.56%
SIMO    Silicon Motion Technology Corp.    8.31%
MLNX    Mellanox Technologies, Ltd.    8.15%
UBNT    Ubiquiti Networks, Inc.    8.00%
AFFY    Affymax, Inc.    7.88%
REXX    Rex Energy Corporation    7.75%
FMCN    Focus Media Holding Ltd.    7.43%
NXPI    NXP Semiconductors NV    7.28%
ARNA    Arena Pharmaceuticals, Inc.    7.25%
SHLD    Sears Holdings Corporation    7.16%
SWKS    Skyworks Solutions Inc.    7.08%
GRPN    Groupon, Inc.    6.99%
INCY    Incyte Corporation    6.85%
SGEN    Seattle Genetics Inc.    6.83%
PTEN    Patterson-UTI Energy Inc.    6.80%
PLCM    Polycom, Inc.    6.79%
RGLD    Royal Gold, Inc.    6.77%
SSRI    Silver Standard Resources Inc.    6.71%
CIEN    CIENA Corp.    6.61%
SFLY    Shutterfly, Inc.    6.57%
TQNT    TriQuint Semiconductor, Inc.    6.55%
ZAGG    ZAGG Inc.    6.38%
IMGN    Immunogen Inc.    6.37%
ACOM    Ancestry.com Inc.    6.32%
CRZO    Carrizo Oil & Gas Inc.    6.31%
TITN    Titan Machinery, Inc.    6.29%
EQIX    Equinix, Inc.    6.28%
CAR    Avis Budget Group, Inc.    6.25%
AREX    Approach Resources, Inc.    6.11%
SPWR    SunPower Corporation    6.10%
OCZ    OCZ Technology Group, Inc.    6.05%
CROX    Crocs, Inc.    6.00%
FNSR    Finisar Corp.    5.99%
BSFT    BroadSoft, Inc.    5.91%
MENT    Mentor Graphics Corp.    5.89%
ARUN    Aruba Networks, Inc.    5.83%
AAPL    Apple Inc.    5.83%
SWHC    Smith & Wesson Holding Corporation    5.78%
QCOR    Questcor Pharmaceuticals, Inc.    5.71%
CPHD    Cepheid    5.70%
HALO    Halozyme Therapeutics, Inc.    5.70%
EXXI    Energy XXI (Bermuda) Limited    5.68%
SGI    Silicon Graphics International Corp.    5.65%
SOHU    Sohu.com Inc.    5.60%
PETD    Petroleum Development Corporation    5.58%
BIDU    Baidu, Inc.    5.53%
VVUS    VIVUS Inc.    5.45%
QLIK    Qlik Technologies, Inc.    5.44%
OPEN    OpenTable, Inc.    5.44%
ABMD    Abiomed Inc.    5.43%
LOGI    Logitech International SA    5.35%
ALXN    Alexion Pharmaceuticals, Inc.    5.34%
CAVM    Cavium, Inc.    5.30%
RPRX    Repros Therapeutics Inc.    5.27%
ITMN    InterMune Inc.    5.26%
ARIA    Ariad Pharmaceuticals Inc.    5.26%
ADSK    Autodesk, Inc.    5.25%
IDCC    InterDigital, Inc.    5.24%
GPOR    Gulfport Energy Corp.    5.23%
ROVI    Rovi Corporation    5.20%
ISIS    Isis Pharmaceuticals, Inc.    5.14%
DNDN    Dendreon Corp.    5.09%
ALGN    Align Technology Inc.    5.01%
STEC    STEC, Inc.    4.99%
AZPN    Aspen Technology, Inc.    4.98%

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