Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and Nasdaq Stock Market:
Lumber Liquidators Holdings Inc., up $1.34 at $25.72
A Stifel Nicolaus analyst raised his rating on the hardwood flooring retailer's stock to a "Buy" on possible market share growth.
Bristol-Myers Squibb Co., up $1.59 at $29.33
The drugmaker and Pfizer said they plan to file for a anticlotting drug for marketing approval by the end of the year.
Red Hat Inc., up $1.55 at $45.27
The company, which sells support services for open-source business software, reported better-than-expected first quarter results.
Lennar Corp., up 41 cents at $18.51
Although the homebuilder's net income fell in the second quarter, its earnings still beat Wall Street expectations.
Treehouse Foods Inc., down $4.40 at $54.10
The food maker lowered its 2011 outlook because of rising costs for freight, transportation and packaging.
Winnebago Industries Inc., up 48 cents at $9.17
The recreational vehicle maker said the company's current president will replace its chief executive who is stepping aside.
WD-40 Co., down $1.74 at $39.49
The maker of WD-40 lubricant lowered its 2011 outlook, saying rising commodity prices are hurting profit margins.
Bed Bath & Beyond Inc., up $2.87 at $56.93
The home furnishings retailer said its net income during the first quarter rose 31 percent as sales at its stores increased.