United Airlines call volume above normal and directionally bullish

Bullish option flow detected in United Airlines (UAL) with 19,598 calls trading, 2.0x expected, and implied vol increasing almost 3 points to 59.79%. Apr-25 85 calls and 3/28 weekly 81 calls are the most active options, with total volume in those strikes near 9,100 contracts. The Put/Call Ratio is 0.40. Earnings are expected on April 15th.