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.

Coya Therapeutics, Inc. (COYA) had 30-Day Put-Call Ratio (Volume) of 1.1034 for 2025-08-28.

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Figures for 2025-08-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6908
Historical Volatility (Parkinson)	0.7340
Implied Volatility (Calls)	0.9847
Implied Volatility (Puts)	1.3923
Implied Volatility (Mean)	1.1885
Put-Call Implied Volatility Ratio	1.4139
Implied Volatility Skew	0.0675
Option Statistics
Put-Call Ratio (Volume)	1.1034
Put-Call Ratio (Open Interest)	0.0294