AstraZeneca call volume above normal and directionally bullish

Bullish option flow detected in AstraZeneca with 13,646 calls trading, 2x expected, and implied vol increasing over 1 point to 20.52%. 5/24 weekly 78 calls and 5/24 weekly 80 calls are the most active options, with total volume in those strikes near 5,500 contracts. The Put/Call Ratio is 0.45. Earnings are expected on July 25th.