Trident Microsystems' (TRID) stock value was cut nearly in half Friday, after a weak financial report a day earlier that triggered at least three downgrades from Wall Street analysts. The Santa Clara, Calif.-based company said it was facing increasing competition in the market providing chips for low-cost flat-panel televisions. Trident forecast sales in the current quarter between $70 million and $72 million, sharply below the $91.6 million expected by analysts.

Online Resources Corp.'s (ORCC) shares plummeted Friday after the financial technology company said it has been cutting prices as it chases bigger customers. Online Resources said late Thursday it earned $3.1 million, or 4 cents per share, in the third quarter, compared with a loss of $1.3 million, or 13 cents per share, in the third quarter of 2006. Analysts polled by Thomson Financial forecast profit of 7 cents per share. The stock hit a 52-week low.

BankAtlantic Bancorp (BBX) tanked 43.1% after the Florida bank swung to a third-quarter loss of $29.6 million, or 52 cents a share, against analysts' call for a dime-a-share profit. CEO Alan Levan particularly blamed "the impact of the decline in the Florida residential real estate market," from which the company expects continuing ripple effects into 2008. Shares were plunging $3.30 to $4.35. The stock hit a 52-week low.

ValueVision Media Inc.(VVTV), which operates the 24-hour shopping channel ShopNBC, on Friday lowered its full-year revenue guidance due to a "challenging retail environment." The company now expects fiscal 2007 revenue to increase in the low single digits. It previously forecast revenue growth between 6 percent and 8 percent. (AP) The stock hit a 52-week low.

DSW (DSW) fell 9% after the shoe retailer cut its fiscal-year earnings guidance. Based on weaker-than-anticipated sales, DSW now sees a profit of $1.48 a share, below its prior forecast of $1.63 to $1.68. Analysts projected earnings of $1.54 a share. DSW said it expects a mid-single-digit decline in same-store sales for the third quarter. As a results, full-year sales are expected to be flat to down 2%, compared with its earlier projection of flat to up 3%. Shares of DSW dropped $2.28 to $22.74. The stock hit a 52-week low.