Old Second Bancorp (OSBC) investor relations material

Executive summary

• Net income for Q2 2026 was $28.2 million ($0.54 per diluted share), up from $25.6 million ($0.48 per share) in Q1 2026.

• Adjusted net income was $28.7 million ($0.55 per share), compared to $26.0 million ($0.49 per share) in the prior quarter.

• Strong revenue and margin performance, with disciplined operating efficiency and double-digit annualized growth in tangible book value per share.

• Board declared a $0.07 per share dividend, payable August 10, 2026.

Financial highlights

• Net interest and dividend income rose to $83.3 million, a 2.69% increase quarter-over-quarter.

• Net interest margin (tax-equivalent) improved to 5.23%, up nine basis points.

• Noninterest income increased 5% to $13.3 million; noninterest expense rose 2.08% to $51.3 million.

• Efficiency ratio improved to 51.72%; adjusted efficiency ratio at 50.80%.

• Return on average assets was 1.65%; return on tangible common equity (ROATCE) was 15.58%.

Outlook and guidance

• Management expects continued strong performance, citing a well-positioned balance sheet and adequate reserves for future losses.

• Focus remains on delivering improved results in the second half of the year.