Among the companies whose shares are expected to see active trade in Wednesday's session are General Motors Corp., Computer Sciences Corp., Philips Electronics NV.

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Alcan Inc. (AL) is expected to report earnings per share for the second quarter of $1.39, according to analysts polled by Thomson First Call.

Alltel Corp. (AT) is expected to post second-quarter per-share income of 87 cents.

Las Vegas Sands Corp. (LVS) is expected to report per-share earnings of 34 cents for the second quarter.

MasterCard Inc. (MA) is expected to post second-quarter per-share income of 62 cents.

Mittal Steel Co. (MT) is expected to report earnings per share of $1.22 for the second quarter.

PG&E Corp. (PCG) is expected to post per-share income of 64 cents for the second quarter.

Procter & Gamble Co. (PG) is expected to report fourth-quarter earnings per share of 54 cents.

Starbucks Corp. (SBUX) is expected to post third-quarter per-share income of 17 cents.

Time Warner Inc. (TWX) is expected to report income per share of 19 cents for the second quarter.

After Tuesday's closing bell, General Motors (GM) revised its second-quarter results, widening its loss by $200 million to reflect a change in the estimated tax provision relating to its pending sale of a majority interest in its GMAC financing unit.

Computer Sciences (CSC) posted a quarterly loss, reversing a year-earlier profit, on the back of the tech-services giant's $215 million restructuring charge and lower revenue.

Kohlberg Kravis Roberts & Co. and Silver Lake Partners may have a won an auction for Philips Electronics' (PHG) chip unit, according to a media report.

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Adobe Systems Inc. (ADBE) backed its earlier financial forecast for its fiscal third quarter, sending the design-software firm's shares climbing over 5% in evening trading. See full story.See After Hours column.

Allscripts Healthcare Solutions Inc. (MDRX) said second-quarter net profit rose to $2.83 million, or 5 cents a share, from $2.03 million, or 5 cents a share, during the same period in the prior year.

AQuantive Inc. (AQNT) said second-quarter net income rose to $12.3 million, or 15 cents a share, from $7.76 million, 11 cents a share, during the same period in the prior year. Analysts had expected a per-share result of 11 cents.

Blue Nile Inc. (NILE) reported second-quarter net earnings of $3.13 million, or 18 cents a share, a 12% rise from $2.79 million, or 15 cents a share, a year ago. See After Hours column.

CheckFree Corp. (CKFR) reported fourth-quarter net earnings of $29.4 million, or 31 cents a share, compared with $11.9 million, or 13 cents a share, in the same period last year. Excluding the amortization of acquisition-related intangible assets, among other items, the company posted per-share earnings of 39 cents, unchanged from last year.

Electronic Arts Inc. (ERTS) said its fiscal first-quarter loss widened from a year ago but the videogame software maker reported higher sales that ran past Wall Street's target.

Equity Residential (EQR) , the largest publicly traded apartment REIT, said second-quarter net income rose from a year earlier as the results benefited from higher gains on property sales. See full story.

Gannett Co. (GCI) and Tribune Co. (TRB) said they've increased their ownership stakes in online job-recruitment site CareerBuilder to 42.5%, while allowing McClatchy Co. (MNI) to retain 15% of the stake it acquired when it purchased Knight Ridder (KRI) earlier this year. See full story.

Guitar Center Inc. (GTRC) said its second-quarter profit rose 4% on a 13% increase in net sales. The musical instrument retailer said it earned $13.4 million, or 47 cents a share, compared with a profit of $12.9 million, or 46 cents a share, in the prior year.

Maverick Tube Corp. (MVK) said second-quarter net profit increased to $53.7 million, or $1.30 a share, from $38.7 million, or 89 cents a share, during the same period in the prior year.

The U.S. Justice Department said Mittal Steel Co. (MT) must sell one of three North American tin mills it would acquire in its $33 billion planned takeover of Arcelor S.A. (005786) to secure regulatory approval.

Molina Healthcare Inc. (MOH) said it swung to a profit in the latest quarter, buoyed by increased revenue from acquisitions and lower medical costs. See full story.

Open Solutions Inc. (OPEN) reported second-quarter net earnings of $4.1 million, or 19 cents a share, compared with $3.84 million, or 18 cents a share, during the year-ago period. The provider of financial data processing software applications posted revenue of $107.1 million vs. $47.1 million.

Papa John's International (PZZA) earned $15.3 million, or 46 cents a share, in its second quarter — up from $10.9 million, or 32 cents, in the year-ago period. Excluding a benefit from the consolidation of a cheese purchasing entity, Papa John's would have earned 34 cents a share.

Pride International Inc. (PDE) said second-quarter net income rose from the same period in the prior year, with the prior year period including executive severance charges and a loss on sale of assets worth 11 cents per share.

RedEnvelope Inc. (REDE) said the quarterly net loss was $900,000, or 10 cents a share, compared with a net loss of $1.75 million, or 20 cents a share, during the same period in the prior year. RedEnvelope said quarterly revenue rose to $26.9 million from $25 million in the prior year.

Symbol Technologies Inc. (SBL) reported a fiscal second-quarter profit of $27.2 million, turning around from a year-ago loss, as the mobile-computing technology company saw increases in both its sales of its hardware products and related services.

ValueClick Inc. (VCLK) reported second-quarter net earnings of $14.4 million, or 14 cents a share, compared with $6.8 million, or 8 cents a share, in the same period last year. The online marketing services company said quarterly revenue rose to $130 million vs. $54.6 million.

Walter Industries Inc. (WLT) reported second-quarter net earnings of $64 million, or $1.24 a share, compared with $41.5 million, or 87 cents a share, in the same period last year. The company said quarterly revenue rose 77% to $825.7 million vs. $468 million.

Weight Watchers Inc.'s (WTW) second-quarter income jumped, but the diet specialist lowered its full-year earnings forecast due to investment costs and sagging business in Europe.

Wynn Resorts Ltd. (WYNN) posted a sharply narrower second-quarter loss on soaring revenue. Revenue came in at $273.4 million, up from $201.1 million.

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