AT&T Inc. (T)

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Historical Volatility (Close-to-Close) (20-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 20-Day Historical Volatility (Close-to-Close) of 0.2384 for 2020-07-01.