Grayscale Bitcoin Trust ETF (GBTC)

Last Closing Price: 63.11 (2026-10-08)

Put-Call Implied Volatility Ratio (150-Day)

Put-Call Implied Volatility Ratio: The ratio of implied volatilities of the at-the-money puts to the at-the-money calls.

Grayscale Bitcoin Trust ETF (GBTC) had 150-Day Put-Call Implied Volatility Ratio of 1.0013 for 2026-10-08.