Amazon.com ( AMZN) 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) 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) 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.