2 Blue-Chip Drug Stocks in Focus Today After Earnings

MRK and PFE have both been quiet on the charts latelyStocks are struggling for direction today, and one sector that represents this choppiness is blue-chip drugmakers. Merck & Co Inc (NYSE:MRK) and Pfizer Inc (NYSE:PFE) are both making outsized moves -- in opposite directions -- with the only common thread the ramped up option activity in response.MRK Eyes Worst Day in 17 YearsMerck, the maker of cancer drug Keytruda, reported fiscal year guidance below estimates. The whiff overshadows an earnings beat, and ...