12% DROP IN CATERPILLAR DRAINS DOW.(BUSINESS)

Byline: NOELLE KNOX Associated Press

NEW YORK -- Prices were mixed on Wall Street Friday as the stock market was unable to settle on a clear direction after Thursday's big rally. A profit warning from Caterpillar pushed blue chip stocks lower, but the Nasdaq composite managed another record high close as technology issues advanced.

The Dow Jones industrial average fell 31.81 to 11,003.89, losing ground after a 152-point gain on Thursday. The Dow ended the week, which included a big rally on optimism about stable interest rates, with a gain of 234.57, or nearly 2.2 percent.

Broader market indexes were mixed. The Standard & Poor's 500 index fell 2.94 …