Bullish option flow detected in American Airlines (AAL) with 48,632 calls trading, 1.8x expected, and implied vol increasing almost 2 points to 52.18%. Jun-25 12 calls and 3/28 weekly 11 puts are the most active options, with total volume in those strikes near 18,500 contracts. The Put/Call Ratio is 0.53. Earnings are expected on April 24th.