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.

Archer Aviation Inc. (ACHR) had 20-Day Put-Call Ratio (Volume) of 0.1667 for 2026-10-02.

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Figures for 2026-10-02

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5086
Historical Volatility (Parkinson)	0.4944
Implied Volatility (Calls)	0.5886
Implied Volatility (Puts)	0.5625
Implied Volatility (Mean)	0.5755
Put-Call Implied Volatility Ratio	0.9555
Implied Volatility Skew	-0.0085
Option Statistics
Put-Call Ratio (Volume)	0.1667
Put-Call Ratio (Open Interest)	0.2456