Bullish flow in Moderna with shares up 3.33%

Bullish flow in Moderna (MRNA), with shares up $1.67, or 3.33%, near $51.78. Options volume relatively light with 11k contracts traded and calls leading puts for a put/call ratio of 0.73, compared to a typical level near 0.86. Implied volatility (IV30) is higher by 1.7 points near 81.05,in the top quartile of the past year, suggesting an expected daily move of $2.64. Put-call skew flattened, suggesting a modestly bullish tone.