Put-Call Ratio (Open Interest) (20-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.

ProShares S&P Global Core Battery Metals ETF (ION) had 20-Day Put-Call Ratio (Open Interest) of 1.3000 for 2026-03-05.

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Figures for 2026-03-05

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5097
Historical Volatility (Parkinson)	0.4096
Implied Volatility (Calls)	0.4504
Implied Volatility (Puts)	0.5339
Implied Volatility (Mean)	0.4922
Put-Call Implied Volatility Ratio	1.1854
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	1.3000