Put-Call Ratio (Open Interest) (120-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 Short Real Estate (REK) had 120-Day Put-Call Ratio (Open Interest) of 0.1899 for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1252
Historical Volatility (Parkinson)	0.0880
Implied Volatility (Calls)	0.3430
Implied Volatility (Puts)	0.3592
Implied Volatility (Mean)	0.3511
Put-Call Implied Volatility Ratio	1.0473
Implied Volatility Skew	-0.0230
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.1899