Historical Volatility (Close-to-Close) (10-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 10-Day Historical Volatility (Close-to-Close) of 0.2126 for 2021-11-29.

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

Figures for 2021-11-29

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2126
Historical Volatility (Parkinson)	0.1682
Implied Volatility (Calls)	0.2266
Implied Volatility (Puts)	0.2192
Implied Volatility (Mean)	0.2229
Put-Call Implied Volatility Ratio	0.9673
Implied Volatility Skew	0.1094
Option Statistics
Put-Call Ratio (Volume)	0.4809
Put-Call Ratio (Open Interest)	0.6361
Forward Price	24.73
Call Breakeven Price	25.46
Put Breakeven Price	23.48
Option Breakeven Price	24.65

Data from Quantcha