These are this morning’s top day trader alerts and most active in price and volume.  We have more detailed analysis and data on price and volume with links through to each at VSInvestor.com:

JA Solar Holding Co. (NASDAQ: JASO) is down close to 10% after poor results.

Garmin Ltd. (NASDAQ: GRMN) is down over 5% on a key analyst downgrade.

YRC Worldwide, Inc. (NASDAQ: YRCW) was down over 7% on an analyst downgrade.

Jazz Pharmaceuticals, Inc. (NASDAQ: JAZZ) was up almost 20% on an unexpected profit.

Medarex Inc. (NASDAQ: MEDX) is seeing very unusual merger arb volume after the Hart-Scott-Rodino merger review period for the Bristol-Myers Squibb (NYSE: BMY) buyout has expired.

Petroleum Development Corporation (NASDAQ: PETD) is down 5% and will be an exponential volume mover on the secondary offering.

Toll Brothers (NYSE: TOL) has some sales gains data that is strong enough to lift the SPDR S&P Homebuilders (NYSE: XHB).

This was not seen until a post-close review, but Broadcom Corp. (NASDAQ:BRCM) was seeing some very unusual PUT OPTIONS TRADING yesterday.

JON C. OGG
AUGUST 12, 2009

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