Historical Volatility (Close-to-Close) (180-Day)

Historical Volatility (Close-to-Close): The past volatility of the security over the selected time frame, calculated using the closing price on each trading day.

AT&T Inc. (T) had 180-Day Historical Volatility (Close-to-Close) of 0.1916 for 2021-01-20.

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

Figures for 2021-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1916
Historical Volatility (Parkinson)	0.1630
Implied Volatility (Calls)	0.2135
Implied Volatility (Puts)	0.2909
Implied Volatility (Mean)	0.2522
Put-Call Implied Volatility Ratio	1.3625
Implied Volatility Skew	-0.0077
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	--
Forward Price	--
Call Breakeven Price	--
Put Breakeven Price	--
Option Breakeven Price	--

Data from Quantcha