Put-Call Ratio (Volume) (120-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

SELLAS Life Sciences Group, Inc. (SLS) had 120-Day Put-Call Ratio (Volume) of 0.2441 for 2026-10-19.

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Figures for 2026-10-19

Volatility Metrics
Historical Volatility (Close-to-Close)	1.0521
Historical Volatility (Parkinson)	0.9410
Implied Volatility (Calls)	1.8551
Implied Volatility (Puts)	1.9661
Implied Volatility (Mean)	1.9106
Put-Call Implied Volatility Ratio	1.0598
Implied Volatility Skew	0.0413
Option Statistics
Put-Call Ratio (Volume)	0.2441
Put-Call Ratio (Open Interest)	0.6044