Over the past six months, Old Second Bancorp, Inc.'s (OSBC) stock price has trended upwards, gaining 20.44%, closing at $24.66 on October 7, 2026, reflecting a 43.0% gain over the past 12 months. Key events impacting the stock price in the past six months include a notable decrease of 6.41% on April 22, 2026. On May 21, 2026, O2 Sponsor Finance provided senior secured credit facilities to support Fort Point Capital, with the stock seeing a +0.52% change. On June 15, 2026, Graf joined Old Second National Bank, and the stock decreased by 2.18%. O2 Sponsor Finance promoted Chris Gallun on June 30, 2026, resulting in a +0.47% stock change. On July 22, 2026, Old Second Bancorp, Inc. reported its Second Quarter 2026 net income of $28.2 million, or $0.54 per diluted share, with revenues of $96.91 million, up 28.4% year-on-year and exceeding analysts' expectations, leading to a 7% stock increase. On September 2, 2026, O2 Sponsor Finance hired Aaron Markos as Senior Vice President, causing a +1.91% stock change. On September 9, 2026, O2 Sponsor Finance hired Kyle Bucsa as Assistant Vice President, with the stock changing by -1.06%. A 17-share profit-sharing allocation went to CEO James Eccher on October 1, 2026. On October 6, 2026, Raymond James Financial upgraded Old Second Bancorp from an "outperform" rating to a "strong-buy" rating, setting a $30.00 price target. On October 9, 2026, Old Second Bancorp was upgraded to a Zacks Rank #2 (Buy), reflecting an upward trend in earnings estimates. Insider selling has also been noted, with executives and directors selling a combined 149,000 shares worth approximately $3.81 million over the past 90 days, though insiders still retain a 3.60% ownership stake.
