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Tuesday's Late Winners & Losers

Chevron was among the after-hours winners Tuesday.

Stocks trended downward after the bell Tuesday, and

Chevron

(CVX) - Get Report

was among the decliners.

The oil and gas company lost ground after predicting that its third-quarter bottom line will

come in "significantly below" the $5.4 billion profit it recorded in the second quarter. The San Ramon, Calif., company blames some of this on one-time items, as well as a "sharp decline in refined-product margins for the downstream business." Shares were down $1.85, or 2%, to $90.95.

Also slipping on soft guidance was

International Paper

(IP) - Get Report

, which said its third-quarter income won't meet the 63-cent per-share analyst consensus, according to Thomson Financial. The Memphis, Tenn.-based paper and packaging company did reaffirm, however, that it expects earnings per share to rise sequentially from last quarter's 52 cents. Shares were off 2.7% to $36.06.

Sallie Mae

(SLM) - Get Report

retreated as well, on word the J.C. Flowers-led group's

revised takeout bid for the student lender had expired. In announcing this, the buyer group called Sallie's just-announced

retaliatory lawsuit regarding the amended offer "meritless."

The group, which also includes

TheStreet Recommends

Bank of America

(BAC) - Get Report

and

JPMorgan Chase

(JPM) - Get Report

, argued that the College Cost Reduction and Access Act, which will cut education-lending subsidies and was signed into law last month, is a "material adverse effect" as defined under the merger agreement. The group said that Sallie's claim to the contrary is a "misreading of the contract."

Sallie shares were flat at $48.50 in recent extended trading. BofA added a penny to $52.58, and JPMorgan was flat at $47.57.

Aluminum maker

Alcoa

(AA) - Get Report

, meanwhile, reported a 3.2% rise in third-quarter continuing-operations income to 64 cents a share, or $558 million. Analysts were looking for 65 cents a share, excluding special items. In addition, the Pittsburgh-based company said it will now buy back as much as 25% of its outstanding shares, up from the prior 10% authorization. Shares were recently up 8 cents to $39.80.

Elsewhere, Canada-based

Angiotech Pharmaceuticals

(ANPI)

jumped 9.5% on

positive results from a pivotal trial on its anti-infective 5-Fluorouacil-coated Central Venous Catheter. The study achieved the primary efficacy endpoint and demonstrated an "excellent safety profile," the company said. Shares gained 63 cents to $7.30 in light trading.