Riot Blockchain call volume above normal and directionally bullish

Bullish option flow detected in Riot Blockchain with 42,405 calls trading, 1.2x expected, and implied vol increasing over 1 point to 77.15%. 8/23 weekly 8.5 calls and 8/23 weekly 8 calls are the most active options, with total volume in those strikes near 15,400 contracts. The Put/Call Ratio is 0.17. Earnings are expected on October 30th.