Moderately bullish activity in Riot Blockchain with shares up 2.34%

Moderately bullish activity in Riot Blockchain (RIOT), with shares up 23c, or 2.34%, near $10.08. Options volume running well above average with 184k contracts traded and calls leading puts for a put/call ratio of 0.2, compared to a typical level near 0.28. Implied volatility (IV30) dropped 1.13 near 73.71,in the lowest 10% of observations over the past year, suggesting an expected daily move of $0.47. Put-call skew flattened, suggesting a modestly bullish tone.