Bullish option flow detected in 3M with 7,815 calls trading, 1.1x expected, and implied vol increasing over 2 points to 28.29%. Nov-24 145 calls and 10/25 weekly 138 calls are the most active options, with total volume in those strikes near 3,000 contracts. The Put/Call Ratio is 0.46. Earnings are expected on October 29th.