Top Day Trader Alerts (RIGL, MSFT, SPWR, ALGN, AMZN, JNPR, ERIC, SEPR)

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By Douglas A. McIntyre Published
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The following are some of the top stocks to watch for active trading today based on pre-market and after-hours volume activity. There are links through to more detailed coverage and volume analysis at VSInvestor.com:

Rigel Pharmaceutical Inc. (Nasdaq: RIGL) shares are down sharply after its rheumatoid arthritis candidate missed its efficacy endpoint in a trial.

Microsoft Corp. (Nasdaq: MSFT) are the most active in the premarket, after it reported  lower-than-expected revenue that fell 17.3% from the same period last year.

SunPower Corp. (Nasdaq: SPWR) shares are among the biggest premarket gainers after the company posted a 10-cent a shre earnings beat, and gave upside guidance.

Align Technology Inc. (Nasdaq: ALGN) shares also are on the rise, after an earnings beat.

Amazon.com Inc. (Nasdaq: AMZN) shares are down nearly 6 percent as one of the most active decliners, after it reported in-line EPS.

Juniper Networks Inc. (Nasdaq: JNPR) shares are down on strong premarket volume despite better-than-expected earnings results, as gross margins were disappointing.

LM Ericsson Telephone Co. (Nasdaq: ERIC) shares are down 7 percent after it reported earnings this morning.

Sepracor Inc. (Nasdaq: SEPR) shares are up on strong volume following its earnings and raised fiscal 2009 guidance.

-The 24/7 Wall St. Team

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About the Author Douglas A. McIntyre →

Douglas A. McIntyre is the co-founder, chief executive officer and editor in chief of 24/7 Wall St. and 24/7 Tempo. He has held these jobs since 2006.

McIntyre has written thousands of articles for 24/7 Wall St. He is an expert on corporate finance, the automotive industry, media companies and international finance. He has edited articles on national demographics, sports, personal income and travel.

His work has been quoted or mentioned in The New York Times, The Wall Street Journal, Los Angeles Times, The Washington Post, NBC News, Time, The New Yorker, HuffPost USA Today, Business Insider, Yahoo, AOL, MarketWatch, The Atlantic, Bloomberg, New York Post, Chicago Tribune, Forbes, The Guardian and many other major publications. McIntyre has been a guest on CNBC, the BBC and television and radio stations across the country.

A magna cum laude graduate of Harvard College, McIntyre also was president of The Harvard Advocate. Founded in 1866, the Advocate is the oldest college publication in the United States.

TheStreet.com, Comps.com and Edgar Online are some of the public companies for which McIntyre served on the board of directors. He was a Vicinity Corporation board member when the company was sold to Microsoft in 2002. He served on the audit committees of some of these companies.

McIntyre has been the CEO of FutureSource, a provider of trading terminals and news to commodities and futures traders. He was president of Switchboard, the online phone directory company. He served as chairman and CEO of On2 Technologies, the video compression company that provided video compression software for Adobe’s Flash. Google bought On2 in 2009.

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