Put-Call Ratio (Volume) (30-Day)

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

Schwab U.S. Small-Cap ETF (SCHA) had 30-Day Put-Call Ratio (Volume) of 0.0625 for 2025-08-28.

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Figures for 2025-08-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2049
Historical Volatility (Parkinson)	0.1406
Implied Volatility (Calls)	0.1809
Implied Volatility (Puts)	0.2129
Implied Volatility (Mean)	0.1969
Put-Call Implied Volatility Ratio	1.1770
Implied Volatility Skew	0.0031
Option Statistics
Put-Call Ratio (Volume)	0.0625
Put-Call Ratio (Open Interest)	0.0367