Apollo Group (APOL) was among a number of names making after hours recoveries from Tuesday's regular session plunge.

Shares of the company, which runs the University of Phoenix and other educational programs, jumped 7.8% after adjusted fiscal first-quarter earnings vaulted 23% to $149 million, or 88 cents a share. Analysts polled by Thomson Financial were looking for just 73 cents a share. Revenue, at $780.7 million, was likewise well ahead of the $750.9 million average estimate. Shares of the Phoenix-based company were adding $5.29 to $73.40 after market close.

Book publisher McGraw-Hill Cos. ( MHP) also gained ground after saying that, as part of a restructuring plan "to fortify the corporation's long-term growth prospects," it will lay off around 600 of its workers globally. Mostly due to the associated severance costs, the New York-based company will take a fourth-quarter charge of $27.3 million, or 8 cents a share. McGraw-Hill shares were adding 67 cents, or 1.7%, to $41.19 in recent late trading.

Among other post-close winners, Starwood Hotels & Resorts ( HOT) recently added 2% to $39.32; chipmaker Marvell Technology ( MRVL) was up 1.4% to $11.29; and metals processor Worthington Industries ( WOR) was climbing 74 cents, or 4.5%, to $17.12.

In decliners, mortgage lender Countrywide ( CFC) extended its stunning regular-session plunge by another 13.8% at $5.45. Greeting card maker American Greetings ( AM) shed 3.4%, savings bank Washington Mutual ( WM) lost 1.1%, and online broker E*Trade ( ETFC) was off another 3 cents, or 1.3%, to $2.22 following a regular-session free fall spurred by cash-related worries.

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