Northern Dynasty Minerals, Ltd. (NAK)

Last Closing Price: 1.73 (2026-07-21)

Put-Call Implied Volatility Ratio (90-Day)

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

Northern Dynasty Minerals, Ltd. (NAK) had 90-Day Put-Call Implied Volatility Ratio of 1.0987 for 2026-07-21.