Implied Volatility Skew (120-Day)

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

ProShares Online Retail ETF (ONLN) had 120-Day Implied Volatility Skew of 0.0267 for 2026-10-20.

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2026-10-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2330
Historical Volatility (Parkinson)	0.1109
Implied Volatility (Calls)	0.2518
Implied Volatility (Puts)	0.2839
Implied Volatility (Mean)	0.2678
Put-Call Implied Volatility Ratio	1.1276
Implied Volatility Skew	0.0267
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0000