From Bloomberg News | Sara Lee Corp. was headed for the highest close in almost three years and trading of bullish options jumped to five times the four-week average on speculation that the food company may be acquired.

The shares advanced a fourth day, touching a high of $16.05 around 9 a.m.. Almost 10,000 calls to buy the stock changed hands, six times the number of puts to sell. About half of the call volume was concentrated in December $16 calls, which rose 50 percent. Get the full story>>