Old Second Bancorp, Inc. (OSBC) NASDAQ
Currency In USD
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Currency In USD
If you invested $1000 in Old Second Bancorp, Inc. (OSBC) 10 years ago, it would be worth $3,573.34 as of August 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $2,268.13, while $1000 invested 1 year ago would be worth $1,404.38. This corresponds to total returns of 257.33%, 126.81%, 40.44%, respectively, with annualized returns of 13.57%, 17.79%, 40.44%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| August 21, 2026 | 25.39 | 25.34 | 25.34 | 25.5 | 25.07 | 337,299 |
| August 20, 2026 | 24.89 | 25.2 | 25.2 | 25.25 | 24.7 | 370,489 |
| August 19, 2026 | 25.64 | 25.04 | 25.04 | 25.74 | 25.02 | 529,123 |
| August 18, 2026 | 25.93 | 25.66 | 25.66 | 26 | 25.62 | 344,212 |
| August 17, 2026 | 25.78 | 25.83 | 25.83 | 26.06 | 25.71 | 381,531 |
| August 14, 2026 | 25.82 | 25.91 | 25.91 | 25.95 | 25.67 | 338,550 |
| August 13, 2026 | 25.89 | 25.81 | 25.81 | 26.01 | 25.71 | 352,114 |
| August 12, 2026 | 25.48 | 25.8 | 25.8 | 25.84 | 25.47 | 302,953 |
| August 11, 2026 | 25.32 | 25.45 | 25.45 | 25.62 | 25.3 | 371,393 |
| August 10, 2026 | 25.34 | 25.28 | 25.28 | 25.56 | 25.15 | 395,330 |
| August 07, 2026 | 25.68 | 25.44 | 25.44 | 25.73 | 25.33 | 460,721 |
| August 06, 2026 | 25.99 | 25.78 | 25.78 | 26.02 | 25.68 | 413,238 |
| August 05, 2026 | 25.95 | 25.89 | 25.89 | 25.95 | 25.72 | 468,476 |
| August 04, 2026 | 25.72 | 25.79 | 25.79 | 26.04 | 25.58 | 551,602 |
| August 03, 2026 | 25.48 | 25.78 | 25.78 | 25.87 | 25.45 | 521,281 |
| July 31, 2026 | 25.17 | 25.29 | 25.29 | 25.35 | 24.94 | 336,671 |
| July 30, 2026 | 25.37 | 25.34 | 25.34 | 25.6 | 25.08 | 343,877 |
| July 29, 2026 | 25.02 | 25.29 | 25.29 | 25.67 | 25.02 | 539,318 |
| July 28, 2026 | 24.78 | 25.22 | 25.22 | 25.23 | 24.76 | 515,929 |
| July 27, 2026 | 24.39 | 24.72 | 24.72 | 24.83 | 24.23 | 651,037 |
| July 24, 2026 | 23.69 | 24.03 | 24.03 | 24.21 | 23.62 | 494,939 |
| July 23, 2026 | 23 | 23.51 | 23.51 | 23.54 | 22.6 | 544,005 |
| July 22, 2026 | 23.66 | 23.41 | 23.41 | 23.68 | 23.27 | 502,508 |
| July 21, 2026 | 23.48 | 23.68 | 23.68 | 23.72 | 23.38 | 472,514 |
| July 20, 2026 | 23.64 | 23.6 | 23.6 | 23.71 | 23.37 | 506,169 |
| July 17, 2026 | 23.7 | 23.64 | 23.64 | 23.82 | 23.49 | 463,854 |
| July 16, 2026 | 23.2 | 23.88 | 23.88 | 23.99 | 23.2 | 736,351 |
| July 15, 2026 | 23.01 | 23.19 | 23.19 | 23.41 | 22.75 | 337,789 |
| July 14, 2026 | 23.06 | 23.01 | 23.01 | 23.3 | 22.91 | 215,927 |
| July 13, 2026 | 22.89 | 23.06 | 23.06 | 23.14 | 22.76 | 329,672 |
| July 10, 2026 | 22.92 | 22.89 | 22.89 | 22.97 | 22.78 | 370,665 |
| July 09, 2026 | 22.96 | 22.85 | 22.85 | 23.05 | 22.83 | 507,483 |
| July 08, 2026 | 22.99 | 22.71 | 22.71 | 22.99 | 22.6 | 327,245 |
| July 07, 2026 | 23.33 | 22.99 | 22.99 | 23.36 | 22.97 | 354,430 |
| July 06, 2026 | 23.15 | 23.22 | 23.22 | 23.55 | 23.05 | 394,905 |
| July 02, 2026 | 23.75 | 23.23 | 23.23 | 23.95 | 23.12 | 246,121 |
| July 01, 2026 | 23.33 | 23.62 | 23.62 | 23.66 | 23.28 | 379,888 |
| June 30, 2026 | 23.21 | 23.32 | 23.32 | 23.36 | 22.99 | 342,120 |
| June 29, 2026 | 23.13 | 23.21 | 23.21 | 23.34 | 23.02 | 415,930 |
| June 26, 2026 | 23.08 | 23.38 | 23.38 | 23.55 | 22.89 | 1.48M |
| June 25, 2026 | 22.79 | 23.02 | 23.02 | 23.08 | 22.75 | 392,311 |
| June 24, 2026 | 22.63 | 22.89 | 22.89 | 22.91 | 22.43 | 331,063 |
| June 23, 2026 | 22.15 | 22.57 | 22.57 | 22.63 | 21.83 | 307,316 |
| June 22, 2026 | 21.87 | 22.08 | 22.08 | 22.25 | 21.86 | 335,595 |
| June 18, 2026 | 21.98 | 21.89 | 21.89 | 22.17 | 21.73 | 530,929 |
| June 17, 2026 | 22.06 | 21.66 | 21.66 | 22.45 | 21.5 | 435,665 |
| June 16, 2026 | 22.16 | 22.06 | 22.06 | 22.53 | 21.91 | 361,802 |
| June 15, 2026 | 22.58 | 22.01 | 22.01 | 22.67 | 21.92 | 440,982 |
| June 12, 2026 | 22.36 | 22.5 | 22.5 | 22.54 | 22.08 | 311,985 |
| June 11, 2026 | 22.23 | 22.22 | 22.22 | 22.41 | 21.94 | 300,508 |
| June 10, 2026 | 22.03 | 22.12 | 22.12 | 22.26 | 21.9 | 319,088 |
| June 09, 2026 | 21.84 | 21.94 | 21.94 | 22.3 | 21.4 | 251,206 |
| June 08, 2026 | 21.62 | 21.71 | 21.71 | 21.88 | 21.59 | 176,998 |
| June 05, 2026 | 21.42 | 21.56 | 21.56 | 21.76 | 21.42 | 226,814 |
| June 04, 2026 | 21.08 | 21.42 | 21.42 | 21.51 | 20.98 | 254,564 |
| June 03, 2026 | 21.43 | 20.7 | 20.7 | 21.49 | 20.68 | 272,495 |
| June 02, 2026 | 20.97 | 21.36 | 21.36 | 21.4 | 20.74 | 398,142 |
| June 01, 2026 | 21.11 | 21.07 | 21.07 | 21.24 | 20.76 | 407,053 |
| May 29, 2026 | 21.29 | 21.32 | 21.32 | 21.5 | 21.02 | 346,178 |
| May 28, 2026 | 21.23 | 21.3 | 21.3 | 21.31 | 20.95 | 308,382 |