Historical Volatility (Parkinson) (60-Day)

Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.

TransUnion (TRU) had 60-Day Historical Volatility (Parkinson) of 0.4306 for 2026-03-09.

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Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2026-03-09

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5308
Historical Volatility (Parkinson)	0.4306
Implied Volatility (Calls)	0.4688
Implied Volatility (Puts)	0.4745
Implied Volatility (Mean)	0.4716
Put-Call Implied Volatility Ratio	1.0121
Implied Volatility Skew	0.0643
Option Statistics
Put-Call Ratio (Volume)	0.2000
Put-Call Ratio (Open Interest)	1.6369