Among the companies whose shares are expected to see active trade in Wednesday's session are Alcoa Inc., Apple Computer Inc. and Genentech Inc.

California Pizza Kitchen (CPKI) is expected to report earnings per share for the fourth quarter of 15 cents, according to analysts polled by Thomson First Call.

Genentech (DNA) is expected to post fourth-quarter per-share income of 56 cents.

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Infosys Technologies Ltd. (INFY) is expected to report income of 37 cents per share for the third quarter.

Sapient Corp. (SAPE) is expected to post income of 4 cents per share for the third quarter.

After Tuesday's closing bell, Alcoa (AA) said higher prices and volume helped lift its third-quarter profit by 60 percent, despite a charge from its previously announced restructuring.

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Apple (AAPL) Chief Executive Steve Jobs unveiled the iPhone, a new touch-screen phone that will be able to play music, surf the Internet and take pictures, among other features.

ArthroCare Corp. (ARTC) said it expects fourth-quarter earnings of 29 cents a share on revenue of $69.7 million.

Audiovox Corp. (VOXX) said it swung to third-quarter net income, as the cost of sales fell, of $3.85 million, or 17 cents a share. During the same period in the prior year, the company reported a net loss of $10.3 million, or 46 cents a share.

Avon Products Inc. (AVP) said it plans to restructure its United States distribution operations and will takes steps such as phasing out certain distribution branches for a combined loss of about 620 positions. The beauty products company said it expects annualized cost savings of $35 million to $45 million.

Bob Evans Farms Inc. (BOBE) after Tuesday's closing bell said December same-store sales at Bob Evans Restaurants increased 3.3 percent from the year-ago period. Mimi's Cafe same-store sales increased 2.7 percent for the five weeks ended Dec. 29.

Cleveland-Cliffs Inc. (CLF) said its board has approved an investment of $109.3 million in the Sonoma Coal Project in Queensland, Australia. Cleveland-Cliffs said it has signed a nonbinding term sheet with privately held Australian coal company QCoal Pty Ltd. to take a 45 percent interest in the Sonoma Project.

D&B (DNB) said it sees per-share income growth in 2007 of 13 percent to 16 percent before "non-core" gains and charges. The business information provider also said it will take initiatives in 2007 to "create financial flexibility," and sees eliminating 400 positions globally.

E-Z-EM Inc. (EZEM) reported second-quarter net earnings of $1.8 million, or 16 cents a share, up 18 percent from $1.53 million, or 14 cents a share, during the year-ago period. The manufacturer of contrast agents for gastrointestinal radiology posted revenue of $34.2 million vs. $33.8 million.

MDU Resources Group Inc. (MDU) said it has retained Goldman Sachs & Co. to advise it on the potential sale of the domestic independent power production assets held in its subsidiary, Centennial Energy Resources.

Motorola Inc. (MOT) said it has completed its $3.9 billion acquisition of Symbol Technologies Inc. (SBL). Sal Iannuzzi, Symbol's former chief executive and president, will be president of the new Motorola enterprise mobility business.

Oxford Industries Inc. (OXM) reported second-quarter net earnings of $12.2 million, or 68 cents a share, compared with $11 million, or 57 cents a share, in the same period last year, as sales rose. The Atlanta-based maker of private label apparel posted revenue of $291 million, up 4.7 percent from $277.9 million.

Papa John's International Inc. (PZZA) said its December system-wide sales at stores open at least one year rose 0.2 percent, while fourth-quarter comparable-store sales fell 0.5 percent.

Pilgrim's Pride Corp. (PPC) said its acquisition of Gold Kist Inc. (GKIS) is complete. Pilgrim's Pride, the largest chicken producer in the United States and Puerto Rico, said all Gold Kist shares have been converted into the right to receive $21 each.

Ruby Tuesday Inc. (RI) reported second-quarter net earnings of $16.7 million, or 28 cents a share, compared with $17.4 million, or 28 cents a share, during the year-ago period. The restaurant chain posted revenue of $336.8 million vs. $295.1 million, a 14 percent increase.

Synnex Corp. (SNX) said fourth-quarter net income rose, as revenue gained, to $15.6 million, or 48 cents a share, from $12.8 million, or 41 cents a share, during the same period in the prior year. Before items, quarterly per-share income rose to 50 cents from 41 cents in the prior year.

WD-40 Co. (WDFC) said first-quarter net earnings fell to $5.69 million, or 33 cents a share, from $7.51 million, or 45 cents a share, in the same period last year, as marketing and other expenses rose. The company posted revenue of $72 million, up 7 percent from $67.2 million last year.

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