Historical Volatility (Parkinson) (20-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.

China Mobile (Hong Kong) Ltd. (CHL) had 20-Day Historical Volatility (Parkinson) of 0.3554 for 2021-01-19.

10-Day 20-Day 30-Day 60-Day
90-Day 120-Day 150-Day 180-Day

Figures for 2021-01-19

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6574
Historical Volatility (Parkinson)	0.3554
Implied Volatility (Calls)	--
Implied Volatility (Puts)	--
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0257
Forward Price	--
Call Breakeven Price	30.28
Put Breakeven Price	25.52
Option Breakeven Price	30.10