NEW YORK — Investors aren't giving up on the stock market's rally, but they're not making big bets either.

Stocks ended a quiet day mixed yesterday as traders were hesitant to commit more money to the market after a weeklong surge. A mix of earnings reports drove trading. Apple Inc. and Starbucks Inc. jumped on their results, but chip maker Advanced Micro Devices Inc. and big bank Wells Fargo & Co. slid.