Friday's Tech Winners & Losers

Tech stocks moved higher Friday, with Research In Motion(RIMM Quote) leading the way.

The BlackBerry maker soared 18% after posting stellar first-quarter results. The company posted earnings of $223.2 million, or $1.17 a share, on revenue of $1.08 billion. Analysts polled by Thomson Financial expected earnings of $1.06 a share on revenue of $1.05 billion.

Looking ahead, Research In Motion sees second-quarter earnings of $1.37 to $1.49 a share on revenue of $1.3 billion to $1.37 billion. Analysts project earnings of $1.12 a share on revenue of $1.11 billion.

In addition to posting financial results, the company also said that it would do a 3-for-1 stock split. Shares were recently trading up $29.19 to $194.78.

Elsewhere, Komag(KOMG Quote) rose 7.6% after the disk-drive component maker agreed to be acquired by Western Digital(WDC Quote) for $1 billion in cash, or $32.25 a share. The deal, which represents a 9% premium to Komag's closing price of $29.58 on Thursday, is expected to close during the third quarter. Shares of Komag were trading up $2.29 to $31.87, while shares of Western Digital were trading down 3 cents to $19.50.

Meanwhile, Black Box(BBOX Quote) vaulted 16% after the computer-networking company posted big gains in fourth-quarter results. The company earned $7 million, or 39 cents a share, on revenue of $249.8 million. During the year-earlier period, the company earned $4.7 million, or 26 cents a share, on revenue of $174.9 million.