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.

Invesco Aerospace & Defense ETF (PPA) had 20-Day Put-Call Ratio (Volume) of 2.0000 for 2026-04-21.

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Figures for 2026-04-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2373
Historical Volatility (Parkinson)	0.1670
Implied Volatility (Calls)	0.3378
Implied Volatility (Puts)	0.1823
Implied Volatility (Mean)	0.2600
Put-Call Implied Volatility Ratio	0.5397
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	2.0000
Put-Call Ratio (Open Interest)	0.7353