Old Second Bancorp's 15-minute chart shows RSI oversold, KDJ golden cross.

According to the 15-minute chart for Old Second Bancorp, the Relative Strength Index (RSI) has fallen into the oversold territory and the KDJ (KST Divergence J) has formed a golden cross on November 17, 2025 at 15:45. This suggests that the stock price has experienced a significant and rapid decline, which may be at odds with the underlying fundamentals of the company. Furthermore, the momentum of the stock price appears to be shifting towards the upside, indicating a potential for further increase in the stock price.