PepsiCo, Inc. (NASDAQ:PEP) will release earnings results for the third quarter, before the opening bell on Thursday, Oct. 9.Analysts expect the Purchase, New York-based company to report quarterly earnings at $2.26 per share, down from$2.31 per share in the year-ago period. PepsiCo projects quarterly revenue of $23.86 billion, compared to$23.32 billion a year earlier, according to data from Benzinga Pro.Last month, activist investor Elliott Investment Management took a roughly $4 billion stake in PepsiCo, ...