Novavax call volume above normal and directionally bullish

Bullish option flow detected in Novavax (NVAX) with 5,702 calls trading, 1.1x expected, and implied vol increasing almost 10 points to 99.21%. 1/31 weekly 10 calls and 1/31 weekly 9.5 calls are the most active options, with total volume in those strikes near 4,000 contracts. The Put/Call Ratio is 0.06. Earnings are expected on February 26th.