Shares of

Tellabs

( TLAB) were among technology's winners Thursday, climbing 19% after the telecom equipment maker posted fourth-quarter earnings that easily beat expectations.

The company earned $92.1 million, or 20 cents a share, on sales of $521.4 million. Excluding items, the company earned $100 million, or 22 cents a share. Analysts surveyed by Thomson First Call expected earnings of 17 cents a share and sales of $495.9 million. A year earlier, the company posted a loss of $138.7 million, or 32 cents a share, on sales of $379.4 million.

Looking ahead, Tellabs forecast first-quarter sales of about $495 million, above analysts' projection of $470.2 million. Shares recently were trading up $1.97 to $12.48.

Komag

( KOMG) rose 8% after the disk-drive component maker reported better-than-expected fourth-quarter results. The company earned $35.2 million, or $1.07 a share, on sales of $192.9 million. Analysts expected earnings of $1.01 a share and sales of $190 million. During the year-earlier quarter, the company earned $15.8 million, or 51 cents a share, on sales of $131.2 million.

For the first quarter, Komag expects sales to rise by 2% to 4% sequentially. Net margin, meanwhile, is expected to be about 17% to 18%. Analysts project first-quarter sales of $189.7 million, which represents a decline of about 2% from the fourth quarter. Shares were up $3.65 to $49.10.

Shares of

Polycom

(PLCM)

climbed 14% after the video Web-conferencing company posted fourth-quarter results that were better than expected. The company earned $9.3 million, or 10 cents a share. Excluding items, the company earned $21 million, or 23 cents a share, topping Wall Street's projection by 2 cents. Polycom posted sales of $156.1 million, above analysts' forecast of $151 million. A year earlier, the company earned $22.5 million, or 22 cents a share, before items, on sales of $146.5 million. Shares gained $2.34 to $19.32.

ChoicePoint

(CPS) - Get Report

shares fell about 7% after the company settled charges with the Federal Trade Commission related to a data security breach, and also reported a lower-than-expected fourth-quarter results. The consumer data broker agreed to pay the FTC $10 million in civil penalties and $5 million in customer redress to settle charges related to a security breach in its massive database. The breach compromised the records of more than 163,000 customers, according to the FTC.

For the fourth quarter, ChoicePoint's net income fell to $27.7 million, or 30 cents a share, from $39.2 million, or 43 cents a share, including a charge related to the FTC settlement. Excluding charges, earnings were 44 cents a share, a penny below analysts' mean estimate. Revenue rose to $257.9 million from $232.5 million a year earlier; Wall Street had targeted revenue of $263.3 million. ChoicePoint shares recently were down $3.07 to $43.23.

Trident Microsystems

( TRID) jumped 17% after the provider of digital TV integrated circuits posted second-quarter results that beat expectations. The company earned $8.5 million, or 14 cents a share, on sales of $40.6 million. Excluding items, the company earned $10.2 million, or 17 cents a share. Analysts expected earnings of 15 cents a share, before items, on sales of $39.3 million. For the year-earlier period, the company reported earnings, before items, of $830,000, or 1 cent a share, on sales of $15.4 million. Shares were trading up $3.56 to $25.02.

Shares of

Acxiom

(ACXM)

rose 3% after the software company posted third-quarter results that topped forecasts. The company earned $27.3 million, or 31 cents a share, on sales of $347.4 million. Analysts projected earnings of 25 cents a share and sales of $338.9 million. During the year-ago quarter, the company earned $23.5 million, or 24 cents a share, on sales of $312.4 million.

Acxiom expects fiscal 2007 sales growth of 7% to 10% in the U.S. and international sales that are flat to up 5%. Shares were recently trading up 73 cents to $24.25.

Other technology movers included

Juniper Networks

(JNPR) - Get Report

, down $4.12 to $17.40;

Lucent Technologies

( LU), up 11 cents to $2.63;

Intel

(INTC) - Get Report

, up 39 cents to $21.60;

Cisco

(CSCO) - Get Report

, up 6 cents to $18.63;

Conexant Systems

(CNXT) - Get Report

, up 24 cents to $3.51;

Sun Microsystems

(SUNW) - Get Report

, unchanged at $4.44;

Oracle

(ORCL) - Get Report

, down 4 cents to $12.47;

Microsoft

(MSFT) - Get Report

, up 16 cents to $25.56;

Apple Computer

(AAPL) - Get Report

, down 98 cents to $73.22;

JDSU

(JDSU)

, up 6 cents to $3.07;

Applied Materials

(AMAT) - Get Report

, up 55 cents to $19.52; and

Sirius Satellite Radio

(SIRI) - Get Report

, down 3 cents to $5.89.