Bitcoin (BTC USD) volatility explained : Bitcoin’s market behavior is starting to look unusually calm, and that shift is becoming the main focus for investors. The Bitcoin Volmex Implied Volatility Index has dropped to 36.11, its lowest level in nine months and close to its weakest reading since 2023, as per a report. The index reflects expected 30-day volatility based on Bitcoin options pricing, suggesting traders are pricing in a quieter short-term market.