Shares of i2 Technologies ( ITWO) were among technology's losers Tuesday, plunging 31% after the software company posted third-quarter results that were below Wall Street expectations.

The company reported net income to common shareholders, which excludes dividends paid out to preferred shareholders, of $8.6 million, or 33 cents a share, on sales of $69.2 million. Analysts polled by Thomson First Call expected earnings of 38 cents a share and sales of $85.1 million. A year earlier, the company earned $17.1 million, or 75 cents a share, on sales of $111.1 million. Shares were trading down $6.46 to $14.44.

Shares of SonicWall ( SNWL) rose 12% after the maker of network security devices posted third-quarter results that came in ahead of expectations. The company earned $2.6 million, or 4 cents a share, on sales of $34 million. Excluding items, the company would have earned $4.5 million, or 7 cents a share. Analysts projected earnings of 4 cents a share, before items, on sales of $33.7 million. A year earlier, the company earned $1.1 million, or 1 cent a share, before items, on sales of $29.4 million.

SonicWall forecast fourth-quarter pro forma earnings of 5 cents to 6 cents a share on sales of $34.5 million to $36 million. The forecast is in line with analysts' expectations for earnings of 5 cents a share and sales of $36 million. Shares recently rose 72 cents to $6.72.

PortalPlayer ( PLAY) tumbled after the company said that it would sell 4.5 million shares in a stock offering. News of the stock sale came after the company posted better-than-expected third-quarter results. The maker of chips for personal media players earned $10.3 million, or 40 cents a share, on sales of $57.9 million. Earnings included stock-based compensation charges of $699,000. Analysts were expecting earnings of 35 cents a share on sales of $56.3 million. A year earlier, the company earned $3.2 million, or 18 cents a share, on sales of $25.6 million. Last year's results included stock-based compensation charges of $1.4 million.

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