NEW YORK (AP) _ Stocks that were moving substantially or trading heavily Wednesday on the New York Stock Exchange and Nasdaq Stock Market.

NYSE

Lucent Technologies, down 33 cents at $4.42

The telecommunication manufacturer shed 28 cents to $4.47 after it reported earnings that beat expectations, but said it expected future earnings to be flat to only slightly higher.

J.P. Morgan Chase & Co., up $1.01 at $40.10

The banking company reported profits of $1.86 billion, well above Wall Street's estimates, as its profits were boosted by improvements in both corporate and consumer credit as well as the rebounding stock market.

AMR Corp., up 83 cents at $14.55

The parent of American Airlines cut its losses and generated positive cash flow for the fourth quarter thanks to its restructuring plan, and beat Wall Street's estimates for the third consecutive quarter. It also announced plans to retool its Miami hub.

NASDAQ

CheckFree Corp., up $4.06 at $34.18

The electronic bill payment and banking provider narrowed a quarterly loss and boosted its outlook for the year.

RF Micro Devices Inc., down $2.41 at $9.85

The company warned it could miss Wall Street expectations for the quarter because of falling demand for its wireless network.

Tractor Supply Co., up $5.10 at $44.00

The company's earnings beat Wall Street expectations for fourth-quarter earnings, as sales from stores open at least a year climbed 9.6 percent on strong livestock and pet product sales.