Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and Nasdaq Stock Market:
ConAgra Foods Inc., up 76 cents at $25.51
The packaged food maker made a $4.9 billion bid for cereal maker Ralcorp Holdings Inc. that was later rejected by the company.
Kellogg Co., down 68 cents at $56.76
First-quarter net income fell 12 percent as the cereal maker dealt with higher ingredient costs and spent more on new products.
MGM Resorts International, up $1.33 at $14.22
The casino operator, which owns the Bellagio and Luxor in Las Vegas, said its first-quarter loss narrowed as its revenue rose.
CBS Corp., up $1.97 at $27.21
The television network which airs "Hawaii Five-O" and "CSI" said it had a strong quarter and it doubled its quarterly dividend.
Las Vegas Sands Corp., down $3.34 at $42.53
The casino operator's first-quarter earnings missed Wall Street expectations and results in Las Vegas and Singapore disappointed.
CardioNet Inc., up 53 cents at $4.96
A Citi analyst upgraded shares of the heart device maker saying the company may see quarter-over-quarter revenue growth.
Green Mountain Coffee Roasters Inc., up $11.91 at $75.98
The seller of single-cup brewers said its revenue rose and it expects further growth from its deals with popular coffee brands.
OpenTable Inc., down $15.65 at $89.35
The online restaurant reservation system announced that its Chief Financial Officer Matthew Roberts will become its new CEO.