Shares of

Tektronix

( TEK) were among technology's losers Friday, slumping 13% after the company posted disappointing second-quarter results and projected third-quarter earnings would be below forecasts.

The company, a maker of testing and measurement equipment for computer and chip companies, earned $19.6 million, or 24 cents a share, for the quarter ended Nov. 25. Excluding items, the company earned $29 million, or 35 cents a share. Analysts polled by Thomson First Call expected earnings of 37 cents a share, before items. Tektronix reported revenue of $272.8 million, below Wall Street's forecast of $276.6 million. A year earlier, the company earned $19.9 million, or 24 cents a share, on revenue of $253.4 million.

For the third quarter, Tektronix forecast earnings of 34 cents to 39 cents a share, below analysts' mean estimate of 40 cents. The company projected revenue of $275 million to $285 million. Analysts predict revenue of $282.6 million. Shares were trading down $4.01 to $26.44.

Chipmos Technologies

(IMOS) - Get Report

rose 10% after the semiconductor-testing-and-assembly services company boosted its fourth-quarter revenue and margin forecasts. The company now projects fourth-quarter revenue of $176 million to $181 million, up from an earlier forecast of $168 million to $172 million. Analysts expect revenue of $171.8 million. Chipmos predicts a gross margin of 29% to 32%, up from its earlier forecast of 26% to 29%. Shares were trading up 59 cents to $6.61.

Shares of

Adobe Systems

(ADBE) - Get Report

rose 5% after the software company posted in-line fourth-quarter earnings and higher-than-expected revenue. Adobe earned $181.9 million, or 30 cents a share, on revenue of $682.2 million. Excluding items, the company earned $197 million, or 33 cents a share. Analysts expected earnings of 33 cents a share, before items, on revenue of $670.8 million. A year earlier, Adobe earned $156.3 million, or 31 cents a share, on revenue of $510.4 million. Excluding items, year-ago earnings were $151.5 million, or 30 cents a share.

Looking ahead, Adobe projected first-quarter adjusted earnings of 28 cents to 30 cents a share, with revenue of $640 million to $670 million. Analysts predict earnings of 31 cents a share and revenue of $652 million. Adobe shares recently changed hands at $43.03, up $2.22.

CT Communications

( CTCI) rose 8% after Standard & Poor's said it will add the telecom services company to its S&P SmallCap 600 index after the close of trading Tuesday. The company will replace

CNS

(CNXS)

, which is being acquired by

GlaxoSmithKline

(GSK) - Get Report

. Shares of CT Communications were adding $1.61 to $22.57.

Shares of

Optical Communications

( OCPI) tumbled 12% after the maker of fiber-optic communications products swung to a fourth-quarter loss. For the quarter ended Sept. 30, the company reported a loss of $1.4 million, or 1 cent a share, on revenue of $19.1 million. During the year-earlier period, the company earned $1.6 million, or 1 cent a share, on revenue of $14.8 million.

Optical Communications forecast fiscal 2007 revenue of $80 million to $90 million. The single-analyst estimate calls for revenue of $94.8 million. Shares were trading down 23 cents to $1.77.

Other technology movers included

Microsoft

(MSFT) - Get Report

, up 3 cents to $30.10;

Intel

(INTC) - Get Report

, up 32 cents to $21.09;

Cisco Systems

(CSCO) - Get Report

, up 38 cents to $27.69;

Sun Microsystems

(SUNW) - Get Report

, down 1 cent to $5.60;

Oracle

(ORCL) - Get Report

, down 26 cents to $17.76;

Sirius Satellite Radio

(SIRI) - Get Report

, unchanged at $3.79; and

Apple Computer

(AAPL) - Get Report

, down 10 cents to $88.45.