Put-Call Ratio (Open Interest) (180-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

COMPASS Pathways PLC Sponsored ADR (CMPS) had 180-Day Put-Call Ratio (Open Interest) of 0.4773 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6988
Historical Volatility (Parkinson)	0.6818
Implied Volatility (Calls)	1.1459
Implied Volatility (Puts)	0.9504
Implied Volatility (Mean)	1.0481
Put-Call Implied Volatility Ratio	0.8294
Implied Volatility Skew	0.0711
Option Statistics
Put-Call Ratio (Volume)	0.0321
Put-Call Ratio (Open Interest)	0.4773