Schlumberger call volume above normal and directionally bullish

Bullish option flow detected in Schlumberger with 10,225 calls trading, 1.3x expected, and implied vol increasing over 1 point to 42.76%. 12/30 weekly 53 calls and Jan-23 57 calls are the most active options, with total volume in those strikes near 4,100 contracts. The Put/Call Ratio is 0.34. Earnings are expected on January 20th.