Old Second Bancorp, Inc. (OSBC)

Last Closing Price: 19.63 (2025-12-04)

Historical Volatility (Close-to-Close) (120-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.

Old Second Bancorp, Inc. (OSBC) had 120-Day Historical Volatility (Close-to-Close) of 0.2780 for 2025-12-04.