Thursday's Late Winners & Losers

Tech stocks loomed large over Thursday's after-hours session with several fresh earnings reports, and emerging as one of the biggest losers was

Dell

(DELL) - Get Report

.

The computer maker reported a fiscal third-quarter profit that surged 27.5% year-over-year to $766 million, or 34 cents a share, on better-than-expected revenue of $15.6 million. But that

didn't cut the mustard with investors, as sales from the company's U.S. consumer segment slid 6% from last year, despite a number of efforts to reverse the late downward trend.

Excluding items, Dell's earnings came to 35 cents a share, or flush with the average analyst estimate, according to Thomson Financial. Still, shares sank $2.69, or 9.6%, to $25.45 in heavy postclose trading.

Fellow tech name

Mentor Graphics

(MENT)

lost 5.4% to $12.20 after

swinging to a fiscal third-quarter loss of a dime a share, from a year-ago profit. Excluding items, that came to a small break-even figure, which sharply misses analysts' calls for earnings of 4 cents a share. Revenue slipped 2.3% from last year to $186.3 million, also coming in under the $190.5 million consensus.

And

Brocade Communications Systems

(BRCD)

saw mixed trading on the heels of its quarterly results. The San Jose, Calif., data-storage company reported a non-GAAP earnings jump of 14.3% to 16 cents a share, which beats Street expectations by 3 cents. Revenue, at $340 million, was a hair under. Shares shed 15 cents, or 1.9%, to $7.59 after an initial bounce.

Solidly higher, however, was

OmniVision Technologies

(OVTI)

, after the chipmaker shattered analyst expectations for the fiscal second quarter. Excluding items, earnings nearly doubled year-over-year to $29.2 million, or 51 cents a share, on a soaring top line of $232.6 million. Analysts were looking for 43 cents a share on revenue of $222.7 million. Shares of the Sunnyvale, Calif., company were adding $1.48, or 7.8%, to $20.37.

Out of the tech sector, clothing retailer

J. Crew

(JCG)

jumped 10.7% on a

better-than-expected fiscal third-quarter profit of 42 cents a share. Analysts had sought 36 cents a share. Last year, the New York-based company's adjusted per-share profit came to just 27 cents. Same-store sales were up 5% year over year, while total revenue ratcheted up 20.7% to an above-par $332.7 million.

J. Crew shares were changing hands at $44.59 in recent after-hours action.