Shares of some top food companies are up at 10 a.m.:
Burger King rose $.69 or 3.6 percent, to $20.00.
CKE Restaurants rose $.18 or 1.5 percent, to $12.39.
McDonalds rose $2.20 or 3.2 percent, to $70.21.
WendyArby rose $.28 or 5.9 percent, to $5.00.