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

NYSE

Choice Hotels, up $1.75 at $40.50

The hotel chain was upgraded to ``buy'' by Smith Barney.

PacifiCare Health Systems Inc., up $3.95 at $35.44

The medical insurer posted strong quarterly gains and a solid 2004 outlook.

Hewlett-Packard Co., up 22 cents at $23.13

The computer maker rallied on a strong corporate buying outlook from rival Dell Inc.

NASDAQ

ImClone Systems Inc., up $10.89 at $44.89

The company's colon cancer drug received Food and Drug Administration approval. The sharp gain was due to an unusual drop in prices Thursday just minutes before Nasdaq halted trading for the company in anticipation of the news.

Peet's Coffee & Tea Inc., up $2.02 at $19.44

The coffee retailer had better-than-expected fourth quarter earnings.

Advanced Energy Industries Inc., up $2.46 at $24.04

A strong 2004 outlook added to the equipment manufacturer's strong quarterly profits.