Merck & Co., Inc. (NYSE:MRK) will release earnings results for the second quarter before the opening bell on Tuesday, July 29. Analysts expect the health care company to report quarterly earnings at $2.03 per share, down from $2.28 per share in the year-ago period. Merck projects to report quarterly revenue at $15.87 billion, compared to $16.11 billion a year earlier, according to data from Benzinga Pro. With the recent buzz around Merck, some investors may be eyeing potential gains from the com