Shares of ATMI ( ATMI) were among technology's losers Wednesday, falling 13% after the supplier of semiconductor materials posted third-quarter results that missed Wall Street expectations.

The company earned $8.3 million, or 22 cents a share, on sales of $69.7 million. Analysts polled by Thomson First Call were expecting earnings of 25 cents a share on sales of $73 million. A year ago, the company posted income from continuing operations of $6.4 million, or 20 cents a share, on sales of $64.4 million. ATMI called its most recent quarter's sales "somewhat disappointing." The company said its cleans material business didn't ramp up as anticipated.

Looking ahead, ATMI forecast fourth-quarter earnings of 22 cents to 27 cents a share on sales of $73 million to $78 million. Analysts had been expecting higher earnings of 28 cents a share on sales of $76.5 million.

Finally, the company announced a $75 million share repurchase plan that will span the next 12 months. Shares were down $3.79 to $24.67.

Imation ( IMN) rose 4% after the company posted third-quarter results that topped forecasts. The data-storage products company earned $16.8 million, or 48 cents a share, on sales of $298.6 million. Analysts were expecting earnings of 36 cents a share on sales of $294.9 million. A year ago, Imation earned $9.6 million, or 24 cents a share, on sales of $259.3 million.

For the fourth quarter, Imation forecast earnings of 44 cents to 48 cents a share, in line with analysts' expectations, and sales of $315 million to $330 million, also in line with forecasts. Shares were trading up $1.85 to $43.20.

Shares of EMC ( EMC) rose 2% after the data-storage products company turned in third-quarter earnings that topped Wall Street's forecast by a penny a share. The company reported earnings of $421.7 million, or 17 cents share, on sales of $2.37 billion. Excluding items, the company would have earned $316 million, or 13 cents a share. Analysts were expecting earnings of 12 cents a share, before items, and sales of $2.37 billion. A year earlier, the company earned $218 million, or 9 cents a share, on sales of $2.03 billion.

Looking ahead, EMC forecast fourth-quarter earnings of 16 cents to 17 cents a share on sales of $2.67 billion to $2.69 billion. Shares recently rose 24 cents to $13.48.

Stamps.com ( STMP) rose 7% after the online postage company reported third-quarter results that surpassed Wall Street expectations. The company earned $2.6 million, or 11 cents a share, on sales of $15.2 million. Analysts projected earnings of 8 cents a share and sales of $14.7 million. A year earlier, the company earned $660,000, or 3 cents a share, on sales of $10.7 million.

Stamps.com said it no longer will provide quarterly earnings guidance and instead will provide only annual forecasts. For 2005, the company anticipates earnings of 39 cents to 42 cents a share, with sales of $57.8 million to $58.8 million. For 2006, the company sees earnings of 52 cents to 60 cents a share and sales of $65 million to $75 million. Analysts predict 2005 earnings of 34 cents a share and 2006 earnings of 52 cents a share. Wall Street sees a top line of $57.4 million for 2005 and $67.3 million for 2006. Stamps.com shares were up $1.27 to $18.39.

Shares of Entrust ( ENTU) fell 16% after the digital signature technology company posted third-quarter results that missed expectations. The company earned $956,000, or 2 cents a share, on sales of $23.7 million. On an adjusted basis, the company earned $1.2 million, or 2 cents a share. Analysts were expecting adjusted earnings of 3 cents a share on sales of $25.4 million. A year ago, the company reported adjusted earnings of $657,000, or 1 cent a share, on sales of $21.3 million.

For the full year, Entrust expects earnings of 10 cents to 12 cents a share, in line with the 11 cents a share that analysts are expecting. Shares fell 81 cents to $4.36.

Motorola ( MOT) rose 3% after the company posted third-quarter results that topped forecasts. The cell-phone maker reported earnings of $1.75 billion, or 69 cents a share, on sales of $9.42 billion. Excluding items, the company would have earned 30 cents a share. Analysts were expecting earnings of 28 cents a share and sales of $9.1 billion. A year earlier, Motorola earned $479 million, or 18 cents a share, on sales of $7.5 billion.

Looking ahead, Motorola forecast fourth-quarter earnings of 32 cents to 34 cents a share and sales of $10.3 billion to $10.5 billion. Analysts project earnings of 33 cents a share and sales of $10 billion. Shares were up 58 cents to $20.75.

Other technology movers included Intel ( INTC), down 60 cents to $23.12; Yahoo! ( YHOO), up $1.99 to $35.69; Sirius Satellite Radio ( SIRI), down 19 cents to $5.78; Microsoft ( MSFT), up 26 cents to $24.83; Cisco ( CSCO), down 1 cent to $16.97; Lucent Technologies ( LU), down 5 cents to $3.06; Oracle ( ORCL), up 11 cents to $12.48; Dell ( DELL), down 50 cents to $31.68; eBay ( EBAY), up 93 cents to $41.35; Sun Microsystems ( SUNW), down 2 cents to $3.90; Applied Materials ( AMAT), down 51 cents to $16.72; and Apple Computer ( AAPL), down 91 cents to $51.30.

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