Old Second Bancorp (OSBC) Interest Income - Net (2010 - 2026)

Old Second Bancorp's Interest Income - Net history runs 17 years deep, the most recent figure standing at $81.1 million for Q1 2026.

• Quarterly Interest Income - Net rose 29.0% year-over-year to $81.1 million in Q1 2026, while the trailing twelve-month figure through Mar 2026 was $343.9 million (up 58.16% YoY) and the FY2025 annual result came in at $325.7 million, up 8.9% from the prior year.
• Interest Income - Net was $81.1 million for Q1 2026 at Old Second Bancorp, down from $115.7 million in the prior quarter.
• Across five years, Interest Income - Net topped out at $115.7 million in Q4 2025 and bottomed at $19.6 million in Q4 2024.
• A 5-year average of $63.5 million and a median of $63.0 million in 2023 frame the typical range for Interest Income - Net.
• Annual changes were most pronounced in 2024 — Interest Income - Net sank 67.95% — and 2025, when it surged 489.77%.
• Old Second Bancorp's Interest Income - Net stood at $64.1 million in 2022, then declined by 4.46% to $61.2 million in 2023, then sank by 67.95% to $19.6 million in 2024, then jumped by 489.77% to $115.7 million in 2025, then declined by 29.9% to $81.1 million in 2026.
• Business Quant data shows OSBC's Interest Income - Net at $81.1 million in Q1 2026, $115.7 million in Q4 2025, and $82.8 million in Q3 2025.