Historical Volatility (Parkinson) (30-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.

Apple Inc. (AAPL) had 30-Day Historical Volatility (Parkinson) of 0.1752 for 2021-10-25.

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

Figures for 2021-10-25

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1875
Historical Volatility (Parkinson)	0.1752
Implied Volatility (Calls)	0.2207
Implied Volatility (Puts)	0.2300
Implied Volatility (Mean)	0.2254
Put-Call Implied Volatility Ratio	1.0421
Implied Volatility Skew	0.0290
Option Statistics
Put-Call Ratio (Volume)	0.7693
Put-Call Ratio (Open Interest)	0.8386
Forward Price	148.54
Call Breakeven Price	158.65
Put Breakeven Price	133.69
Option Breakeven Price	147.30

Data from Quantcha