Stocks: Best monthly gain in a year

(CNNMoney.com) -- Despite a mixed performance on Friday, stocks booked the best monthly gain in a year, with the Dow Jones industrial average and S&P 500 both rising nearly 7% in July.

Stocks were supported this month by strong quarterly financial results from major U.S. companies. About 75% of the roughly 300 companies in the S&P 500 that have reported earnings so far have beat analysts' estimates.

But the earnings optimism has been tempered by ongoing concerns about the economy, particularly worries that tepid job growth will eventually undermine corporate profits.

"Even though earnings and guidance have been better than expected, there's still skepticism in the market because jobs have been missing in action," said Alec Young, an equity strategist at Standard & Poor's. (more)