Implied Volatility Skew (20-Day)

Implied Volatility Skew: A measurement that quantifies the difference in implied volatility of options at lower and higher strike prices.

Spire Inc. (SR) had 20-Day Implied Volatility Skew of 0.1589 for 2026-07-20.

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2635
Historical Volatility (Parkinson)	0.2036
Implied Volatility (Calls)	0.2879
Implied Volatility (Puts)	0.3133
Implied Volatility (Mean)	0.3006
Put-Call Implied Volatility Ratio	1.0882
Implied Volatility Skew	0.1589
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.6000