Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and Nasdaq Stock Market:
Dynegy Inc., up 81 cents at $3.76
The power company said that one of its subsidiaries filed for bankruptcy protection after struggling with lower electricity prices.
Rockwell Automation Inc., up $4.52 at $74.33
The company, which specializes in industrial machinery, said its fourth-quarter profit rose 54 percent as its revenue increased.
Signet Jewelers Limited, up $3.24 at $45.93
The company, which operates Kay Jewelers and Jared The Galleria Of Jewelry stores, is being added to the S&P MidCap 400 index.
Sotheby's, down 75 cents at $33.69
The New York auction house reported a wider-than-expected loss in its third quarter, as revenue from auction commissions fell.
International Flavors & Fragrances Inc., down $6.28 at $55.03
The creator of flavors and fragrances said that its third-quarter net income rose 7 percent, but it missed analyst expectations.
Fossil Inc., down $2.39 at $94.81
The watch and apparel maker said that its third-quarter net income rose 2 percent, but it lowered its fourth-quarter outlook.
Priceline.com Inc., up $43.85 at $552.85
The online travel company said that its third-quarter net income more than doubled as hotel, rental car and airline bookings rose.
Amylin Pharmaceuticals Inc., down $1.20 at $9.73
The company and fellow drugmaker Eli Lilly said they have ended their long-standing collaboration to develop diabetes drugs.