Put-Call Ratio (Open Interest) (180-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 Ultra S&P500 (SSO) had 180-Day Put-Call Ratio (Open Interest) of 0.3654 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2160
Historical Volatility (Parkinson)	0.1882
Implied Volatility (Calls)	0.2827
Implied Volatility (Puts)	0.2815
Implied Volatility (Mean)	0.2821
Put-Call Implied Volatility Ratio	0.9957
Implied Volatility Skew	0.0758
Option Statistics
Put-Call Ratio (Volume)	5.0906
Put-Call Ratio (Open Interest)	0.3654