Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and Nasdaq Stock Market:
Guess Inc., down $6.16 at $37.71
The clothing maker issued a first-quarter forecast that fell short of Wall Street's expectations. Business in North America is weak.
FedEx Corp., up $2.61 at $87.89
The world's second-largest package delivery company said strong earnings should continue in the current quarter.
General Maritime Corp., down 69 cents at $1.81
The shipping company warned that fourth-quarter results would be weaker than Wall Street had expected.
Allergan Inc., up $1.23 at $70.13
Debt ratings for the medical device maker were raised by Fitch Ratings after the company had higher revenue in 2010.
Boeing Co., up 61 cents at $68.30
The earthquake and tsunami in Japan, where the plane maker gets some of its parts, has not slowed production, the company said.
Cree Inc., up $2.33 at $49.35
The company, which makes light emitting diode (LED) products, was upgraded by a Merriman Capital analyst to "Buy" from "Neutral."
Akamai Technologies Inc., up $1.51 at $36.47
Stifel Nicolaus upgraded the company, which provides Web streaming services, because its lower share price is attractive.
Diodes Inc., up $2.56 at $31.59
Collins Stewart said the chip maker could be seeing higher demand since it does not manufacture in Japan. Its rivals do.