Amazon.com ( AMZN - Get Report) shares dropped after the bell Tuesday when its third-quarter earnings report failed to impress investors. The online retailer said it earned $30 million, or 7 cents a share, compared with $54 million, or 13 cents a share, a year ago. Excluding costs from a legal settlement, the company would have earned $50 million, or 12 cents a share, above analysts' estimate of 10 cents. Amazon's revenue rose 27% to $1.86 billion from $1.46 billion last year. Analysts polled by Thomson First Call expected revenue of $1.84 billion.

For the fourth quarter, Amazon expects revenue of $2.86 billion to $3.16 billion, in line with Wall Street's forecast of $3.1 billion. For the full year, the company anticipates revenue of $8.37 billion to $8.67 billion, bracketing Wall Street's estimate of $8.56 billion. The stock was down $3.52, or 7.6%, to $42.65 after hours.

Flextronics ( FLEX - Get Report) reported a loss of $2.4 million, or break-even on a per-share basis, for the second quarter ended Sept. 30, reversing a year-earlier profit of $92.6 million, or 16 cents a share. Excluding certain items, the company earned $101.3 million, or 17 cents a share. Revenue for the quarter fell to $3.9 billion from $4.1 billion last year. Analysts expected a profit of 19 cents a share, before items, on revenue of $4.1 billion. For the third quarter, the company expects to earn 18 cents to 20 cents a share on revenue in the range of $4 billion to $4.2 billion, below Wall Street's forecast of 25 cents a share on revenue of $4.56 billion. Shares of Flextronics sank $1.56, or 12.9%, to $10.54 in after-hours trading.

Chubb's ( CB - Get Report) third-quarter net income fell to $246 million, or $1.20 a share, from $364 million, or $1.88 a share, a year ago. The insurer said its latest results were affected by pretax costs of $568 million related to hurricanes Katrina and Rita. Operating income, which excludes realized after-tax investment gains and losses, was $183 million, or 89 cents a share. Analysts anticipated operating income of 44 cents a share, according to First Call. The stock rose 92 cents, or 1.1%, to $86.95 in after-hours trading.

Avaya ( AV said it earned $660 million, or $1.36 a share, for the fourth quarter ended Sept. 30, up from $100 million, or 21 cents a share, a year earlier. The latest results include a tax benefit totaling roughly $577 million. Excluding items, earnings from continuing operations were $95 million, or 20 cents a share. The office phone networker's revenue rose to $1.3 billion from $1.1 billion last year. Analysts, on average, expected the company to earn 17 cents a share on revenue of $1.28 billion. Avaya's stock was up 67 cents, or 5.8%, to $12.21 in after-hours trading.

InfoSpace ( INSP said its third-quarter profit dropped to $11.3 million, or 32 cents a share, from $13.4 million, or 37 cents a share, a year ago. The Internet media company's revenue increased 24% to $83.2 million from $67.2 million last year. The results beat analysts' targets for earnings of 18 cents a share and revenue of $77.4 million. For the fourth quarter, the company expects to earn 25 cents to 28 cents a share on revenue of $84 million to $86 million. Analysts projected earnings of 15 cents a share and $86 million in revenue. Shares were higher by $3.62, or 16.3%, to $25.85 in after-hours trading.

F5 Networks ( FFIV - Get Report) reported net income of $15.7 million, or 39 cents a share, for the fourth quarter ended Sept. 30, compared with earnings of $15.8 million, or 43 cents a share, a year ago. Excluding certain items, the company earned $19 million, or 47 cents a share, well above Wall Street's prediction of 38 cents a share. The networking company's revenue surged to $80.6 million from $50.2 million, also beating analysts' estimate of $77.4 million. The stock gained $6.77, or 16.4%, to $48.17 in after-hours trading.

Intuitive Surgical ( ISRG - Get Report) reported third-quarter net income of $20.7 million, or 55 cents a share, topping Wall Street's expectation of a 29-cents-a-share profit. Revenue came in at $60.9 million, above analysts' forecast of $49.7 million. A year ago, Intuitive earned $6.1 million, or 17 cents a share, on revenue of $35.5 million. The company cited higher da Vinci Surgical System shipments for the revenue growth. In after-hours trading, shares jumped $20.51, or 28.5%, to $92.50.

Silicon Storage Technology ( SSTI - Get Report) swung to a third-quarter loss of $4.8 million, or 5 cents a share, from net income of $14.5 million, or 15 cents a share, a year ago. The loss was narrower than analysts' mean estimate of 14 cents a share. The provider of flash memory technology said revenue for the quarter rose to $118.1 million from $112.2 million last year. For the fourth quarter, SST predicted earnings between break-even and 5 cents a share, better than analysts' estimate for a loss of 8 cents a share. The stock was up 22 cents, or 4.5%, to $5.11 after hours.