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

NYSE

American Medical Security Group, up $1.11 at $12.71

The marketer of health care benefits and insurance products reported better-than-expected fourth-quarter results and raised its forecast for 2002.

Sprint Corp. PCS Group, down $3.30 at $10.46; Sprint Corp. FON Group, down $1.70 at $14.31

The telecommunications provider failed Monday to meet analysts' expectations for the fourth quarter. Sprint's FON Group, which includes businesses such as local and long-distance calling, lost $906 million, while its PCS Group, which focuses on the wireless market, lost $328 million.

Colgate-Palmolive Co., down 93 cents at $55.40

The consumer products company reported a 3 percent increase in fourth-quarter profits, meeting expectations.

NASDAQ

Ciena Corp., down 52 cents at $9.60

Optical networking equipment maker Ciena announced Tuesday it will cut 400 jobs, or 12 percent of its work force, and expects its first-quarter loss to be nearly double what analysts expected.

Nextel Communications Inc., down $2.08 at $4.70

The company said Monday one of its units failed to make a $41 million interest payment. Weakness in the overall wireless communications sector also affected the stock.

Antares Pharma, Inc., up 96 cents at $4.57; Eli Lilly & Co., up 61 cents at $73.91

The pharmaceutical devices company announced an agreement with Eli Lilly involving some of its needle-free drug delivery technology. More specific terms weren't released.