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.

AT&T Inc. (T) had 30-Day Historical Volatility (Parkinson) of 0.1831 for 2024-06-13.

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

Figures for 2024-06-13

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2140
Historical Volatility (Parkinson)	0.1831
Implied Volatility (Calls)	0.1531
Implied Volatility (Puts)	0.2628
Implied Volatility (Mean)	0.2079
Put-Call Implied Volatility Ratio	1.7164
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	1.5409
Put-Call Ratio (Open Interest)	0.6428
Forward Price	17.53
Call Breakeven Price	18.77
Put Breakeven Price	16.26
Option Breakeven Price	17.79