Put-Call Ratio (Volume) (60-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 60-Day Put-Call Ratio (Volume) of 0.5011 for 2026-04-20.

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Figures for 2026-04-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.9718
Historical Volatility (Parkinson)	0.8961
Implied Volatility (Calls)	1.2525
Implied Volatility (Puts)	1.2777
Implied Volatility (Mean)	1.2651
Put-Call Implied Volatility Ratio	1.0201
Implied Volatility Skew	0.0255
Option Statistics
Put-Call Ratio (Volume)	0.5011
Put-Call Ratio (Open Interest)	0.2495