Arq, Inc. (ARQ)

Last Closing Price: 2.30 (2026-09-04)

Historical Volatility (Close-to-Close) (60-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.

Arq, Inc. (ARQ) had 60-Day Historical Volatility (Close-to-Close) of 0.4856 for 2026-09-04.