Walgreen Boots call volume above normal and directionally bullish

Bullish option flow detected in Walgreen Boots with 11,758 calls trading, 1.2x expected, and implied vol increasing almost 2 points to 49.27%. 7/12 weekly 16 calls and 6/7 weekly 16 calls are the most active options, with total volume in those strikes near 6,400 contracts. The Put/Call Ratio is 0.16. Earnings are expected on June 27th.