Market capitalization is the total value the stock market puts on a company: its share price multiplied by the number of shares outstanding. Each point here is the share count reported in a filing multiplied by the closing price on that filing date, adjusted for later stock splits, so the history moves when a new filing arrives rather than with each day's trading. A larger market cap means investors collectively value the company more highly; by itself it says nothing about profit or debt. Annual points keep the latest observation in each calendar year.
OLD SECOND BANCORP INC market cap for the quarter ending 2026-08-04 was $1.31B, a 46.56% increase year-over-year.
OLD SECOND BANCORP INC market cap for the quarter ending 2026-06-30 was $1.19B, a 48.73% increase year-over-year.
OLD SECOND BANCORP INC market cap for the quarter ending 2026-05-05 was $1.08B, a 46.05% increase year-over-year.
OLD SECOND BANCORP INC market cap for the quarter ending 2026-03-31 was $1.04B, a 39.02% increase year-over-year.
OLD SECOND BANCORP INC market cap for fiscal 2026 was $1.31B.
OLD SECOND BANCORP INC market cap for fiscal 2025 was $1.03B, a 28.66% increase from fiscal 2024.
OLD SECOND BANCORP INC market cap for fiscal 2024 was $797.85M, a 15.61% increase from fiscal 2023.
OLD SECOND BANCORP INC market cap for fiscal 2023 was $690.14M, a 3.49% decline from fiscal 2022.