Put-Call Ratio (Open Interest) (10-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

NioCorp Developments Ltd. (NB) had 10-Day Put-Call Ratio (Open Interest) of 0.2915 for 2026-08-20.

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Figures for 2026-08-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3397
Historical Volatility (Parkinson)	0.5498
Implied Volatility (Calls)	0.8443
Implied Volatility (Puts)	0.8900
Implied Volatility (Mean)	0.8672
Put-Call Implied Volatility Ratio	1.0541
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	1.6470
Put-Call Ratio (Open Interest)	0.2915