Put-Call Ratio (Open Interest) (30-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.

Sigma Lithium Corporation (SGML) had 30-Day Put-Call Ratio (Open Interest) of 0.8235 for 2025-10-13.

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Figures for 2025-10-13

Volatility Metrics
Historical Volatility (Close-to-Close)	1.0545
Historical Volatility (Parkinson)	0.8664
Implied Volatility (Calls)	1.0817
Implied Volatility (Puts)	1.1751
Implied Volatility (Mean)	1.1284
Put-Call Implied Volatility Ratio	1.0863
Implied Volatility Skew	-0.0149
Option Statistics
Put-Call Ratio (Volume)	0.1122
Put-Call Ratio (Open Interest)	0.8235