NEW YORK (AP) â¿¿ Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and Nasdaq Stock Market:

NYSE

Beazer Homes USA Inc., down 25 cents at $5.37

Homebuilders' stocks took a hit after a real estate index said home prices dropped in October, and economists expect more declines in 2011.

Rare Element Resources Ltd., up $1.21 at $12.94

Shares of the North American "rare earths" miner jumped after China said it would cut exports of the minerals used in high-tech products.

KBR Inc., up $1.39 at $30.90

An analyst upgraded the engineering and construction firm, saying rising commodity prices should boost demand for its services.

Hecla Mining Co., up 58 cents at $11.24

A jump in gold and silver prices boosted shares of the metal miner, which owns mines in Idaho and Alaska.

NASDAQ

BioSante Pharmaceuticals Inc., down 39 cents at $1.61

The drug and vaccine maker plans to raise $18 million by selling common stock and warrants to purchase common stock.

Sears Holdings Corp., up $1.60 at $70.02

The owner of Sears and Kmart launched an online streaming video service that lets customers download new movies.

Santarus Inc., up 10 cents at $3.27

Shares climbed after the drug developer said it submitted an application for FDA approval of Rhucin, a treatment for a rare genetic disorder.

Alphatec Holdings Inc., up 16 cents at $2.69

A Stifel Nicolaus analyst said the medical device maker's new CFO would help usher in positive changes for the company.
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