NEW YORK (AP) _ Stocks were mostly lower today as investors' nervousness over interest rates spread to the outlook for second-quarter corporate earnings.

At 11 a.m. on Wall Street, the Dow Jones industrial average was down 91.18 at 10,575.68.

Broader stock indicators were also lower. The Standard & Poor's 500 index was down 14.91 at 1,318.15, and the Nasdaq composite index was down 29.91 at 2,568.21.

After the market closed Wednesday, semiconductor maker Advanced Micro Devices said it expects its second-quarter loss to be far worse than analysts had expected, as microprocessor prices have collapsed and the company has lost market share to industry leader Intel. AMD fell 1 7/16 to 16 3/4 today.

Also late Wednesday, Micron Technology Inc. said it lost 10 cents a share in its fiscal third quarter. Analysts had expected the chip maker to break even in the quarter. Micron shares were down 2 1/8 to 41 13/16 today.

The poor results helped deflate Wall Street's high hopes for corporate earnings for the second quarter, which concludes at the end of this month. While stocks have sputtered in the month since the Federal Reserve first indicated it might raise interest rates, many analysts have looked to corporate earnings as a potential salvation for the market.

The investment firm Morgan Stanley Dean Witter beat Wall Street estimates in its earnings report today, and its stock rose 1/4 to 93 1/2.

The continuing slide of the bond market also pressured stocks today. The 30-year Treasury bond yield rose to 6.15 percent. The increasingly high yield of bonds has presented investors with an attractive alternative to stocks.

Declining issues outnumbered advancers by a 8-to-5 margin on the New York Stock Exchange, where volume came to 200.8 million shares, well behind Wednesday's quiet pace.

The NYSE composite index was down 5.40 at 625.35, and the American Stock Exchange composite index was down 3.32 at 767.84.