Put-Call Ratio (Volume) (20-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Schwab Short-Term U.S. Treasury ETF (SCHO) 20-Day Put-Call Ratio (Volume) data is not available for 2026-01-16.

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.0079
Historical Volatility (Parkinson)	0.0058
Implied Volatility (Calls)	0.2163
Implied Volatility (Puts)	0.1270
Implied Volatility (Mean)	0.1717
Put-Call Implied Volatility Ratio	0.5873
Implied Volatility Skew	0.2173
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	1.1353