Novavax call volume above normal and directionally bullish

Bullish option flow detected in Novavax with 16,648 calls trading, 1.7x expected, and implied vol increasing over 12 points to 133.59%. Mar-23 15 calls and Mar-23 12.5 calls are the most active options, with total volume in those strikes near 4,800 contracts. The Put/Call Ratio is 0.41. Earnings are expected on February 27th.