NYSE

Pfizer Inc., up 79 cents at $18.44

The world's biggest drug maker is shifting its research focus to diseases with high potential for treatment improvements, such as cancer.

Huntsman Corp., up $5.25 at $12.60

A Delaware judge declined to let Hexion Specialty Chemicals walk away from a $6.51 billion buyout of the chemical maker.

Thor Industries Inc., down 33 cents at $24.82

The RV maker said quarterly earnings plunged nearly 90 percent as high gasoline prices battered the recreational vehicle industry.

Sovereign Bancorp Inc., up $1.62 at $3.95

The bank named former Chittendon Corp. chief Paul A. Perrault its new top executive, helping calm worried investors.

Schlumberger Ltd., up $4.34 at $78.09

The oilfield services company said hurricane disruptions will trim third-quarter results, but increased exploration bodes well long term.

Circuit City Stores Inc., down 32 cents at 76 cents

The consumer electronics retailer said Monday that its quarterly loss more than tripled and an analyst cut its rating to "Underperform."

NASDAQ

Research in Motion Ltd., up $6.57 at $68.30

The maker of Blackberry devices rebounded from recent weakness, helped by positive analyst comments, including an upgrade.

Microsoft Corp., up $1.68 at $26.69

The software firm said its purchase of Fast Search and Transfer ASA will buoy research efforts on its business search systems.