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.

State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM) had 120-Day Put-Call Ratio (Open Interest) of 0.1044 for 2026-01-16.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.1158
Historical Volatility (Parkinson)	0.1017
Implied Volatility (Calls)	0.1582
Implied Volatility (Puts)	0.1551
Implied Volatility (Mean)	0.1567
Put-Call Implied Volatility Ratio	0.9803
Implied Volatility Skew	0.0526
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.1044