Updated from 12:45 p.m. EST

Shares of

Captiva Software

(CPTV)

were among the technology's winners Monday, rising 16% after the company said its fourth-quarter earnings and sales would top expectations.

The software company expects pro forma earnings of 17 cents to 19 cents a share on sales of $19.8 million to $20.2 million. Analysts polled by Thomson First Call had been expecting earnings of 16 cents a share on sales of $18.6 million. Previously, Captiva expected earnings of 15 cents to 16 cents a share on sales of $18.5 million to $19 million. The company attributed its outlook to better market demand, better sales execution in the U.S. and growing acceptance of its new products. Shares traded up $1.57 to $11.37.

Mobility Electronics

(MOBE)

fell 10.3% after the company warned that fourth-quarter sales would fall below analysts' expectations. The mobile device maker expects to post a profit on sales of about $20.6 million. Analysts had been expecting earnings of 7 cents a share on sales of $23.3 million. The company expects to report its fourth-quarter earnings results on Feb. 10. Shares traded down 79 cents to $6.86.

Shares of

Nam Tai Electronics

(NTE)

rose 9.3% after the company said its fourth-quarter sales exceeded its previous sales guidance of $135 million. When the company reports its fourth-quarter results on Feb. 4, it expects to post sales of more than $150 million, it said. Nam Tai attributed the outperformance to strong sales of FPC sub-assemblies, CMOS sensor modules used in mobile phones and LCD (liquid-crystal display) modules. Analysts had been expecting sales of $131.6 million. Shares traded up $1.62 to $19.09.

Western Wireless

(WWCA)

rose 2.3% after the company agreed to be acquired by

Alltel

(AT) - Get Report

for about $4.4 billion. The deal calls for Alltel to issue $3.4 billion worth of stock and pay $1 billion in cash for Western Wireless' outstanding stock. Alltel will also assume about $1.5 billion in debt, bringing the total value of the deal to around $6 billion. On the basis of Friday's closing price, shares of Western Wireless are being purchased for about $39.27 a share. The transaction, which is expected to close by midyear 2005, will be accretive to earnings in 2006. Shares of Western Wireless traded up 85 cents to $37.37; Alltel traded down $1.37 to $54.75.

Shares of

WebEx Communications

(WEBX)

jumped 7.2% after the Defense Information Security Agency selected the company's Web-conferencing services for use by the U.S. Department of Defense. The technology will be used to "improve communications and coordination between Defense's military, business and intelligence organizations worldwide," WebEx said. Financial terms of the deal were not disclosed. Shares traded up $1.50 to $22.28.

Other technology movers included

Sirius Satellite Radio

(SIRI) - Get Report

, down 48 cents to $6.62;

Microsoft

(MSFT) - Get Report

, up 13 cents to $26.80;

Intel

(INTC) - Get Report

, up 8 cents to $22.88;

Cisco

(CSCO) - Get Report

, unchanged at $18.72;

Sun Microsystems

(SUNW) - Get Report

, down 1 cent to $4.61;

Applied Materials

(AMAT) - Get Report

, up 2 cents to $16.17; and

Lucent

(LU)

, up 3 cents to $3.53.