Among the companies whose share are expected to see active trade in Tuesday's session are Genentech Inc., Alcoa Inc., Bausch & Lomb Inc. and Micron Technology Inc.

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Genentech Inc. (DNA) is expected to report first-quarter earnings of 41 cents a share, according to analysts polled by Thomson First Call.

After Monday's closing bell, global aluminum giant Alcoa Inc. (AA) said first-quarter profit more than doubled. See full story.See After Hours column.

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Avocent Corp. (AVCT) said it expects first-quarter revenue in the range of $94 million to $95 million, depending upon final royalty reports yet to be received. Analysts polled by Thomson First Call are currently estimating first-quarter revenue of $100 million. Additionally, the Huntsville, Ala.-based networking company said it expects second-quarter revenue of $114 million to $118 million. Analysts are looking for revenue of $109 million.

Bausch & Lomb Inc. (BOL) said it's temporarily suspending U.S. shipments of ReNu with MoistureLoc produced at its plant in Greenville, S.C. The company said it hopes to facilitate further investigation of reports of fungal keratitis infections among contact lens wearers. The Food and Drug Administration said it has learned of a "rare but serious eye infection" in people who wear soft contact lenses. Fungal keratitis can cause a permanent loss of vision, according to the agency.

Burlington Coat Factory Warehouse Corp. (BCF) said its shareholders have voted to adopt a $2.06 billion agreement providing for the company's acquisition by Bain Capital Partners LLC affiliates. Burlington Coat expects to complete the deal Thursday.

Embarcadero Technologies Inc. (EMBT) said it expects first-quarter revenue of $14.2 million to $14.5 million, compared with its prior view of $15.1 million to $15.8 million. Analysts polled by Thomson First Call are looking for quarterly revenue of $15 million. Embarcadero Technologies said it expects per-share income for the quarter of 2 cents. On a pro forma basis, the company is looking for first-quarter per-share income of 4 cents, compared with its prior view of 6 cents to 8 cents. Analysts are looking for per-share income of 7 cents.

ESpeed Inc. (ESPD) said Jay Ryan, chief financial officer, has resigned, and accepted a position at a hedge fund. Ryan will perform his duties at eSpeed until May 16, the company added.

Micron Technology Inc. (MU) reported a second-quarter profit that grew almost 64% over a year ago, even as its revenue fell due to what the chipmaker called lower average-selling prices of its products. See full story.

SanDisk Corp. (SNDK) Chief Executive Officer Eli Harari, 60, was appointed chairman, the company said, replacing Irwin Federman, 70, who plans to stay on board as vice chairman and lead independent director. SanDisk, based in Sunnyvale, Calif., makes flash-memory cards used in digital cameras and hand-held music players.

Secure Computing Corp. (SCUR) said it now sees first-quarter per-share income in a range of breakeven to a penny, or 12 cents to 13 cents on a pro forma basis. The company previously forecast per-share income of 1 cent, or 13 cents on a pro forma basis. Analysts polled by Thomson First Call are looking for a per-share result of 13 cents. Secure Computing lowered its outlook for quarterly revenue to a range of $42 million to $42.5 million, compared with its prior view of $45 million. Analysts are looking for revenue of $45 million.