Among the companies whose shares are expected to see active trade in Wednesday's session are Walt Disney Co., Cheesecake Factory Inc. and Cisco Systems Inc.

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Apollo Group Inc. (APOL) is expected to report earnings per share of 62 cents for the first quarter, according to analysts polled by Thomson Financial.

Dean Foods Co. (DF) is expected to post fourth-quarter per-share income of 61 cents.

Devon Energy Corp. (DVN) is expected to report earnings per share of $1.36 for the fourth quarter.

MedImmune Inc. (MEDI) is expected to report income of 54 cents per share for the fourth quarter.

Moody's Corp. (MCO) is expected to post earnings of 59 cents per share for the fourth quarter.

Prudential Financial Inc. (PRU) is expected to report earnings of $1.52 per share for the fourth quarter.

Sara Lee Corp. (SLE) is expected to post second-quarter income of 16 cents per share.

Walt Disney (DIS) is expected to report first-quarter earnings per share of 39 cents.

Whirlpool Corp. (WHR) is expected to post fourth-quarter earnings per share of $1.44.

After Tuesday's closing bell, Cisco (CSCO) reported that quarterly profit surged 40%, boosted by its acquisition of Scientific-Atlanta and surging demand for Internet equipment among telecom companies and small businesses.

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Actions Semiconductor Co. (ACTS) said fourth-quarter net income rose, with unit shipments at an all-time high, to $21.3 million, or 25 cents per American Depositary Share, from $19.9 million, or 24 cents per ADS, during the same period in the prior year.

Atmos Energy Corp. (ATO) reported first-quarter net earnings of $81.3 million, or 97 cents a share, compared with $71 million, or 88 cents a share, in the same period last year, as the cost of purchased gas dropped.

Atwood Oceanics Inc. (ATW) reported first-quarter net earnings of $21.1 million, or 67 cents a share, up from $14.5 million, or 47 cents a share, during the year-ago period. The Houston-based drilling contractor posted revenue of $88.8 million vs. $55.4 million.

Blackboard Inc. (BBBB) reported fourth-quarter net earnings of $201,000, or a penny a share, down from $23.1 million, or 79 cents a share, during the year-ago period.

Brightpoint Inc. (CELL) said fourth-quarter net income rose, as wireless devices handled gained, to $9.74 million, or 19 cents a share, from $8.85 million, or 18 cents a share, during the same period in the prior year.

CB Richard Ellis Group Inc. (CBG) said fourth-quarter net income rose, buoyed by "strong" leasing activity, to $125.1 million, or 53 cents a share, from $95.4 million, or 41 cents a share, during the same period in the prior year.

Cheesecake Factory (CAKE) said its fourth-quarter income was off from the prior year's levels, but the casual dining restaurateur's sales climbed 18%, thanks to increased traffic at its Grand Lux outlets. See full story.See After Hours column.

Computer Sciences Corp. (CSC) said that net income for its fiscal third-quarter fell 78%, and the company is delaying filing a full earnings report with regulators until it has completed an ongoing internal review of stock options grant practices.

CPI International Inc. (CPII) reported first-quarter net earnings of $5.84 million, or 33 cents a share, up from $2.22 million, or 15 cents a share, during the year-ago period.

Equity Residential Properties Trust (EQR) reported fourth-quarter net earnings of $465.1 million vs. $225.9 million during the year-ago period. Net income available to common shareholders was $457.6 million, or $1.54 a share, compared with $215.2 million, or 74 cents a share, a year ago.

FEI Co. (FEIC) said it swung to net income in the fourth-quarter, as bookings remained solid and operating expenses declined, of $14.7 million, or 36 cents a share. During the same period in the prior year, the net loss was $30.7 million, or 92 cents a share. See After Hours column.

Fidelity National Information Services Inc. (FIS) said fourth-quarter net income rose, as revenue gained, to $75.1 million, or 39 cents a share, from $45.5 million, or 35 cents a share, during the same period in the prior year.

FMC Corp. (FMC) said fourth-quarter net income fell, as restructuring charges rose, to $12.9 million, or 33 cents a share, from $25.3 million, or 64 cents a share, during the same period in the prior year.

Kforce Inc. (KFRC) said fourth-quarter net income rose, as revenue per billing day gained, to $9.26 million, or 22 cents a share, from $6.86 million, or 17 cents a share, during the same period in the prior year.

Nabors Industries Ltd. (NBR) posted a big jump in its fourth-quarter earnings as lofty energy prices and strong international demand put a premium on the company's drill rigs and oilfield services. See full story.

Nalco Holding Co. (NLC) reported fourth-quarter net earnings of $37.9 million, or 26 cents a share, up 50% from $25.2 million, or 17 cents a share, during the year-ago period. Adjusted earnings before interest, taxes, depreciation and amortization were $193 million vs. $163 million a year ago.

Pioneer Natural Resources Co. (PXD) reported fourth-quarter net earnings of $27.7 million, or 22 cents a share, compared with $140.8 million, or $1.08 a share, in the same period last year, as oil and gas revenue dropped.

Polo Ralph Lauren Corp. (RL) said it has named John Alchin, Comcast Corp.'s (CCT) co-chief financial officer, to its board.

RenaissanceRe Holdings (RNR) reported a huge quarterly profit, but the reinsurer cut its 2007 premium forecast citing softening prices and the impact of a new Florida insurance law.

ResMed Inc. (RMD) reported second-quarter net earnings of $29 million, or 37 cents a share, compared with $22.3 million, or 30 cents a share, in the same period last year, boosted by higher sales of sleep products.

Travelzoo Inc. (TZOO) said fourth-quarter net income rose, as Europe and North America sales grew, to $4.29 million, or 26 cents a share, from $1.65 million, or 10 cents a share, during the same period in the prior year.

Wal-Mart Stores Inc. (WMT) said it will go to the U.S. Supreme Court if necessary to keep it from facing a widespread class-action discrimination lawsuit alleging that women were denied pay and promotions.

XL Capital Ltd. (XL) reported a big fourth-quarter profit after the Bermuda-based insurance and reinsurance company tapped into higher rates for some types of coverage and avoided big catastrophes that plagued it in late 2005.

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