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.

Invesco Aerospace & Defense ETF (PPA) had 30-Day Put-Call Ratio (Volume) of 0.2353 for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2345
Historical Volatility (Parkinson)	0.1755
Implied Volatility (Calls)	0.2453
Implied Volatility (Puts)	0.2058
Implied Volatility (Mean)	0.2255
Put-Call Implied Volatility Ratio	0.8389
Implied Volatility Skew	0.0824
Option Statistics
Put-Call Ratio (Volume)	0.2353
Put-Call Ratio (Open Interest)	1.1628