Vale call volume above normal and directionally bullish

Bullish option flow detected in Vale with 24,614 calls trading, 1.3x expected, and implied vol increasing almost 2 points to 45.80%. Jun-23 18 calls and Dec-22 17 calls are the most active options, with total volume in those strikes near 8,500 contracts. The Put/Call Ratio is 0.34. Earnings are expected on February 23rd.