Put-Call Implied Volatility Ratio (20-Day)

Put-Call Implied Volatility Ratio: The ratio of implied volatilities of the at-the-money puts to the at-the-money calls.

Companhia de saneamento Basico Do Estado De Sao Paulo - Sabesp (SBS) had 20-Day Put-Call Implied Volatility Ratio of 1.1116 for 2026-05-22.

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Figures for 2026-05-22

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3630
Historical Volatility (Parkinson)	0.2693
Implied Volatility (Calls)	0.7440
Implied Volatility (Puts)	0.8270
Implied Volatility (Mean)	0.7855
Put-Call Implied Volatility Ratio	1.1116
Implied Volatility Skew	-0.3761
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0004