Shares of Amazon.com ( AMZN) were among technology's winners Wednesday, jumping 12% after the Internet retailer posted third-quarter results that surpassed Wall Street's expectations.

The company earned $19 million, or 5 cents a share, down from $30 million, or 7 cents a share, a year earlier. Revenue rose to $2.31 billion from $1.86 billion. The results beat analysts' forecast for earnings of 3 cents a share on revenue of $2.25 billion.

Looking ahead, Amazon.com sees fourth-quarter revenue of $3.63 billion to $3.95 billion. Analysts project revenue of $3.68 billion. Shares were trading up $2.50 to $36.13.

Shares of QLogic ( QLGC) rose 8% after the maker of networking switches and adapters posted better-than-expected second-quarter results. For the period ended Oct. 1, the company earned $30.4 million, or 19 cents a share, on revenue of $145.3 million. Excluding items, QLogic earned $38.3 million, or 24 cents a share. Analysts expected earnings of 22 cents a share and revenue of $141.2 million. Last year, second-quarter adjusted earnings were $30.5 million, or 17 cents a share, on revenue of $119 million. Shares were trading up $1.57 to $20.80.

Supertex ( SUPX) jumped 15% after the chipmaker's second-quarter results topped estimates. For the period ended Sept. 30, the company earned $6 million, or 43 cents a share, on revenue of $26.5 million. Excluding stock-based compensation costs, the company earned $6.7 million, or 48 cents a share. Analysts predicted earnings of 40 cents a share on revenue of $25.9 million. A year earlier, the company earned $4.2 million, or 31 cents a share, on revenue of $20.2 million. Shares were adding $5.73 to $44.73.

Shares of Websense ( WBSN) climbed 13% after the software company bested third-quarter estimates. The company earned $8.5 million, or 18 cents a share, on revenue of $46.1 million. Excluding stock options costs, earnings totaled $11.5 million, or 25 cents a share. Analysts expected earnings of 23 cents a share, before options costs, on revenue of $45.6 million. During the year-earlier quarter, the company earned $10.1 million, or 21 cents a share, on revenue of $38.3 million.

Websense forecast fourth-quarter adjusted earnings of 24 cents to 25 cents a share. Analysts project EPS of 24 cents. Shares were up $3.04 to $26.02.

Shares of CheckFree ( CKFR) slid 6% after the electronic commerce-services company posted weaker-than-anticipated first-quarter revenue and warned that second-quarter results would be below expectations. For the quarter ended Sept. 30, the company earned $31.4 million, or 34 cents a share, on revenue of $228.6 million. Excluding items, earnings were $38.6 million, or 42 cents a share. Analysts polled by Thomson First Call expected earnings of 39 cents a share and revenue of $229.5 million. A year earlier, the company posted adjusted earnings of $43.1 million, or 46 cents a share, on revenue of $213.7 million.

CheckFree projected second-quarter adjusted earnings of 40 cents to 42 cents a share, compared with analysts' forecast of 45 cents. The company anticipates revenue of $230 million to $235 million. Wall Street had forecast revenue of $238.3 million. Shares were trading down $2.73 to $40.78.

Genesis Microchip ( GNSS) fell nearly 6% after the company reported a top-line shortfall for its second quarter, and also forecast third-quarter revenue well below expectations. The company, a maker of chips for flat-panel displays, said it earned $108,000, or less than a penny a share, for the quarter ended Sept. 30. Excluding items, the company earned $5.7 million, or 16 cents a share. Analysts expected earnings of 14 cents a share, before items. Genesis reported revenue of $69 million, compared with Wall Street's expectation of $69.5 million. During the year-earlier period, the company recorded adjusted earnings of $11.8 million, or 31 cents a share, on revenue of $74.9 million.

For the fiscal third quarter, Genesis Microchip sees revenue of $52 million to $57 million. Analysts project revenue of $72.2 million. Shares recently changed hands at $10.34, down 61 cents.

Other technology movers included Sun Microsystems ( SUNW), up 7 cents to $5.23; Applied Materials ( AMAT), up 20 cents to $17.24; Cisco Systems ( CSCO), down 16 cents to $24.18; Intel ( INTC), up 11 cents to $21.73; Microsoft ( MSFT), up 8 cents to $28.36; Level 3 Communications ( LVLT), down 8 cents to $5.58; Oracle ( ORCL), down 5 cents to $18.84; Advanced Micro Devices ( AMD), up 32 cents to $20.64; Texas Instruments ( TXN), up 36 cents to $30.88; and Lucent Technologies ( LU), down 1 cent to $2.48.

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