A. After the morning, there wasn't a lot of program selling.

But a wave of program selling brought on a plunge, and the Dow ended the day down 27.12 points, to 3,494.77.

Heavy computerized program selling helped bring down the market, traders said.

Despite heavy program selling, stock prices recovered some ground yesterday in strong trading.

Profit taking and some program selling, however, left the market mixed as 849 issues fell in price while only 708 advanced.

Analysts said profit taking and program selling toppled the market.

For the day as a whole, though, the Dow lost 43 points because of heavy program selling.

Based on prior stock exchange data, professional program selling represented at least 10 percent of the total.

Much of the program selling, the firm said, came in the last hour of trading.

Markets Stock prices moved broadly lower, pulled down by a late wave of program selling.