Updated from 1:45 p.m. EDT

Shares of Andrew Corp. ( ANDW) were among the worst-performing technology stocks Monday after the company reported strong third-quarter results but warned that fourth-quarter results would fall short of expectations.

The telecommunications-equipment maker earned 14 cents a share during the second quarter on sales of $493 million. Analysts polled by Thomson First Call had expected it to earn 13 cents a share on sales of $468.5 million. Looking ahead, Andrew Corp. now expects fourth-quarter pro forma earnings of 10 cents to 13 cents a share on sales of $460 million to $490 million. Analysts had expected it to earn 16 cents a share on sales of $489 million. Shares of Andrew Corp. traded down $3.38, or 22.9%, to $11.39.

ManTech International ( MANT) rose after receiving a four-year contract to provide background investigations support to the U.S. Office of Personnel Management. ManTech will use its investigative infrastructure throughout the U.S., Puerto Rico and the Virgin Islands to assist the OPM in reducing the investigative backlog and the amount of time it takes to complete investigations. The potential value of the contract is $50 million to $100 million a year. Shares of ManTech International traded up $1.18, or 8.7%, to $14.82.

Shares of Agilysys ( AGYS) rose after the company swung to a first-quarter profit and raised its fiscal 2005 earnings guidance. The computer-systems distributor posted a first-quarter profit of 14 cents a share on sales of $386.7 million. Analysts had expected it to earn 12 cents a share on sales of $374 million. Looking ahead, it now expects full-year earnings of 83 cents to 93 cents a share on sales of $1.68 billion to $1.75 billion. Analysts are expecting earnings of 78 cents a share on sales of $1.64 billion. Shares of Agilysys traded up $2.39, or 22.2%, to $13.14.

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