Pfizer call volume above normal and directionally bullish

Bullish option flow detected in Pfizer with 61,082 calls trading, 1.4x expected, and implied vol increasing over 1 point to 24.77%. 7/24 weekly 24.5 calls and Sep-26 22 puts are the most active options, with total volume in those strikes near 18,900 contracts. The Put/Call Ratio is 0.60. Earnings are expected on August 4th.