Updated from 12:45 p.m. ESTShares 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) 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.