Shares of Advanced Energy Industries ( AEIS) were among technology's losers Thursday, falling 5% after the company posted weaker-than-expected third-quarter sales and warned that fourth-quarter results would fall short of Wall Street forecasts.

The company, which makes power-conversion devices used by the semiconductor industry, reported a loss of $3.9 million, or 10 cents a share, on sales of $82 million. Results included a $3 million litigation settlement charge, a noncash charge of $1.1 million related to a write-off of deferred debt issuance costs and a $2.1 million charge related to the early retirement of convertible debt. Analysts polled by Thomson First Call expected a profit of 8 cents a share on sales of $84.2 million. A year earlier, the company posted a loss of $1.1 million, or 3 cents a share, on sales of $93.6 million.

Looking ahead, Advanced Energy forecast fourth-quarter earnings of 5 cents to 7 cents a share on sales of $75 million to $80 million. Analysts projected earnings of 10 cents a share and sales of $86.1 million. "We expect the soft demand environment for semiconductor equipment to continue in the near term," the company said. Shares were trading down 55 cents to $10.04.

QLogic ( QLGC) fell 6% after the company posted mixed second-quarter results and forecast weaker-than-expected third-quarter sales. The company reported second-quarter earnings of $43 million, or 48 cents a share, on sales of $119 million. Excluding items, the company would have earned $30.5 million, or 34 cents a share. Analysts were expecting earnings of 33 cents a share on sales of $120 million. A year earlier, the company earned $35.9 million, or 38 cents a share, on sales of $102.3 million. Excluding items, the company would have earned $27.2 million, or 29 cents a share, in the year-ago period.

For the fiscal third quarter, QLogic sees earnings of 32 cents to 35 cents a share on sales of $121 million to $125 million. Gross margin is expected to be between 69% and 70%. Analysts had forecast earnings of 35 cents a share and sales of $127 million. Shares were trading down $2 to $31.36.

Shares of Citrix Systems ( CTXS) rose 5% after the software company posted third-quarter results that topped forecasts. The company earned $41 million, or 23 cents a share, on sales of $226.9 million. Excluding items, the company would have earned $52.2 million, or 29 cents a share. Analysts were expecting earnings of 25 cents a share, before items, and sales of $219.9 million. A year ago, the company posted earnings of $38.4 million, or 22 cents a share, on sales of $187.6 million.

Citrix forecast fourth-quarter adjusted earnings of 30 cents to 32 cents a share, above analysts' average projection of 29 cents. The company sees sales of $243 million to $251 million, at or above Wall Street's forecast of $243.3 million. Shares were up $1.28 to $25.75.

Intersil ( ISIL) rose 9% after the chipmaker posted results that easily beat expectations. The company earned $27.2 million, or 19 cents a share, on sales of $157.2 million, for the third quarter. Excluding items, the company would have earned $30.8 million, or 21 cents a share. Analysts were expecting earnings of 17 cents a share, before items, on sales of $147.8 million. A year ago, the company posted a loss of $24.5 million, or 17 cents a share, on sales of $127 million. Excluding items, the company would have earned $16.2 million, or 11 cents a share.

Looking ahead, Intersil forecast fourth-quarter pro forma earnings of 23 cents to 24 cents a share on sequential sales growth of 5% to 7%, translating to sales of $165 million to $168 million. Analysts predict earnings of 19 cents a share and sales of $154.9 million. Shares were trading up $1.87 to $22.97.

Shares of FormFactor ( FORM) surged 20% on the company's better-than-expected third-quarter results. The company earned $9.8 million, or 23 cents a share, on sales of $62.4 million. Excluding a tax benefit of 8 cents a share, the company would have earned 15 cents a share during the quarter. Analysts were expecting earnings of 14 cents a share on sales of $57.5 million. A year ago, the company earned $7.5 million, or 19 cents a share, on sales of $51.4 million. Shares were up $4.55 to $26.50.

Other technology movers included Nokia ( NOK), down $1.04 to $16.01; eBay ( EBAY), down $2.22 to $39.79; Intel ( INTC), down 11 cents to $23.58; Cisco ( CSCO), down 9 cents to $17.11; Apple Computer ( AAPL), up 80 cents to $55.74; Lucent Technologies ( LU), down 1 cent to $3.14; Microsoft ( MSFT), down 11 cents to $24.98; Juniper Networks ( JNPR), up $1.28 to $23.27; Oracle ( ORCL), up 9 cents to $12.28; Yahoo! ( YHOO), down 15 cents to $35.76; Sirius Satellite Radio ( SIRI), down 7 cents to $6.01; and PMC-Sierra ( PMCS), down 75 cents to $7.18.

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