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 0.1367 for 2021-11-26.

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

Figures for 2021-11-26

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1367
Historical Volatility (Parkinson)	0.1332
Implied Volatility (Calls)	0.2034
Implied Volatility (Puts)	0.3269
Implied Volatility (Mean)	0.2652
Put-Call Implied Volatility Ratio	1.6072
Implied Volatility Skew	-0.0223
Option Statistics
Put-Call Ratio (Volume)	0.4811
Put-Call Ratio (Open Interest)	0.5612
Forward Price	23.59
Call Breakeven Price	28.89
Put Breakeven Price	21.67
Option Breakeven Price	26.43

Data from Quantcha