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

NYSE

Marriott International Inc., up $1.62 at $39.95.

Third-quarter earnings weakened but beat estimates at Marriott, the world's largest hotel company by revenue.

Wal-Mart Stores Inc., down $1.02 at $48.53.

The world's largest retailer reported disappointing September sales.

Wyeth, down 32 cents at 50.86.

A Philadelphia jury awarded a woman $1.5 million after finding that the drug company's hormone replacement drug was a factor in her breast cancer.

NASDAQ

Dynavax Technologies Corp., up $1.41 at $6.37.

A pilot study on the drug development company's ragweed allergy treatment showed promise.

Taser International Inc., up 93 cents at $8.58.

The stun gun maker reported three big orders and offered third-quarter revenue guidance that beat Wall Street estimates.

Helen of Troy Ltd., up $2.79 at $20.80.

The beauty and consumer products company reported its second-quarter income grew 15 percent to soundly beat analyst estimates, and offered guidance for the full fiscal year that topped Street views.