According to analyst Murphy, Bitcoin options implied volatility (IV) fell to record lows on July 20, with 1-week IV at 33% and 1-month IV at 34%, both below the 40% historical threshold that signals significant price volatility.
Murphy noted three similar episodes in the past year where IV dropped below 40%, each followed by sharp BTC declines within two weeks: BTC fell from $97,000 to $62,000 after the January low-IV period; from $82,000 to $60,000 after the April episode; and from $66,000 to $58,000 following mid-June. The analyst attributed the current low IV to market consensus convergence, volatility arbitrage accumulation, and market makers' short gamma hedging mechanisms amplifying unexpected market events.