If you invested $1000 in OSI Systems, Inc. (OSIS) 10 years ago, it would be worth $3,098.89 as of September 11, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $2,143.69, while $1000 invested 1 year ago would be worth $845.13. This corresponds to total returns of 209.89%, 114.37%, -15.49%, respectively, with annualized returns of 11.97%, 16.48%, -15.49%.
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 |
|---|---|---|---|---|---|---|
| September 10, 2026 | 196.05 | 201.25 | 201.25 | 202.21 | 195.69 | 267,760 |
| September 09, 2026 | 202.75 | 197.49 | 197.49 | 205.77 | 195.76 | 360,731 |
| September 08, 2026 | 203.64 | 204.25 | 204.25 | 207.26 | 201 | 332,833 |
| September 04, 2026 | 206.23 | 204.15 | 204.15 | 207.49 | 201.43 | 202,070 |
| September 03, 2026 | 207.93 | 206.62 | 206.62 | 207.93 | 201.1 | 284,326 |
| September 02, 2026 | 208.52 | 206.75 | 206.75 | 210.8 | 206.11 | 199,204 |
| September 01, 2026 | 207.93 | 208.52 | 208.52 | 210.47 | 204.83 | 192,270 |
| August 31, 2026 | 207.16 | 207.91 | 207.91 | 210.62 | 205.22 | 248,235 |
| August 28, 2026 | 210.27 | 206.64 | 206.64 | 212.21 | 205.7 | 215,090 |
| August 27, 2026 | 211.31 | 210.89 | 210.89 | 213 | 207.79 | 313,366 |
| August 26, 2026 | 203.92 | 211.04 | 211.04 | 211.43 | 203.67 | 347,866 |
| August 25, 2026 | 207.11 | 204.07 | 204.07 | 208.99 | 202.85 | 485,353 |
| August 24, 2026 | 206.44 | 204.05 | 204.05 | 209.99 | 202 | 857,522 |
| August 21, 2026 | 196 | 206.73 | 206.73 | 207.82 | 186.5 | 1.29M |
| August 20, 2026 | 219.32 | 218.09 | 218.09 | 221.4 | 214.17 | 353,612 |
| August 19, 2026 | 221 | 220.92 | 220.92 | 223.73 | 217.97 | 163,433 |
| August 18, 2026 | 226.47 | 218.73 | 218.73 | 226.65 | 218.52 | 162,580 |
| August 17, 2026 | 232.21 | 229.87 | 229.87 | 234.73 | 226.59 | 125,486 |
| August 14, 2026 | 228.56 | 228.27 | 228.27 | 232.91 | 226.98 | 132,263 |
| August 13, 2026 | 234.35 | 228.56 | 228.56 | 236.83 | 226.95 | 149,316 |
| August 12, 2026 | 236.8 | 231.57 | 231.57 | 236.8 | 228.55 | 196,513 |
| August 11, 2026 | 235.09 | 233.2 | 233.2 | 236.92 | 231.5 | 170,453 |
| August 10, 2026 | 236.06 | 232.61 | 232.61 | 239.07 | 231.62 | 210,667 |
| August 07, 2026 | 238.77 | 236.23 | 236.23 | 239 | 234.26 | 93,877 |
| August 06, 2026 | 236.26 | 237.1 | 237.1 | 240.9 | 233.7 | 96,612 |
| August 05, 2026 | 236.24 | 235.09 | 235.09 | 237.25 | 233.52 | 133,439 |
| August 04, 2026 | 228.82 | 236.6 | 236.6 | 237.46 | 225.3 | 159,010 |
| August 03, 2026 | 222.37 | 225.57 | 225.57 | 227.13 | 221.04 | 206,001 |
| July 31, 2026 | 222.07 | 221.39 | 221.39 | 223.9 | 218.62 | 198,804 |
| July 30, 2026 | 215.96 | 219.92 | 219.92 | 220.38 | 212.08 | 107,436 |
| July 29, 2026 | 219.27 | 214.02 | 214.02 | 224.03 | 213.55 | 142,418 |
| July 28, 2026 | 217.3 | 220.64 | 220.64 | 222.57 | 217.3 | 128,404 |
| July 27, 2026 | 217.95 | 217.3 | 217.3 | 220.34 | 213.08 | 134,679 |
| July 24, 2026 | 214.55 | 216.7 | 216.7 | 218.23 | 210.4 | 181,247 |
| July 23, 2026 | 208 | 214.39 | 214.39 | 214.68 | 205.87 | 187,423 |
| July 22, 2026 | 210.14 | 209.79 | 209.79 | 212.23 | 208.29 | 141,845 |
| July 21, 2026 | 211.92 | 210.25 | 210.25 | 213 | 208.02 | 238,180 |
| July 20, 2026 | 212.66 | 210.48 | 210.48 | 215.93 | 209.9 | 230,216 |
| July 17, 2026 | 213.35 | 212.66 | 212.66 | 218.01 | 210 | 217,205 |
| July 16, 2026 | 217.3 | 216.22 | 216.22 | 223.33 | 213.06 | 131,034 |
| July 15, 2026 | 211.69 | 218.29 | 218.29 | 218.76 | 211.01 | 134,822 |
| July 14, 2026 | 214.94 | 211.07 | 211.07 | 220.2 | 211.05 | 161,771 |
| July 13, 2026 | 214.95 | 213.2 | 213.2 | 216.25 | 211.3 | 279,859 |
| July 10, 2026 | 218.54 | 216.51 | 216.51 | 223.69 | 215.99 | 211,609 |
| July 09, 2026 | 217.35 | 216.65 | 216.65 | 217.98 | 213.1 | 159,362 |
| July 08, 2026 | 218.22 | 217.42 | 217.42 | 220.04 | 213.27 | 180,387 |
| July 07, 2026 | 219.89 | 218.72 | 218.72 | 221 | 213.85 | 194,818 |
| July 06, 2026 | 222.13 | 220.83 | 220.83 | 224.9 | 216.2 | 227,257 |
| July 02, 2026 | 217 | 221.76 | 221.76 | 221.93 | 213.87 | 172,885 |
| July 01, 2026 | 218.39 | 214.9 | 214.9 | 223.07 | 214.41 | 234,203 |
| June 30, 2026 | 214.74 | 218.7 | 218.7 | 221 | 214.04 | 278,333 |
| June 29, 2026 | 217.59 | 213.24 | 213.24 | 219.34 | 210.79 | 241,460 |
| June 26, 2026 | 216.28 | 218.29 | 218.29 | 219.7 | 212.88 | 645,590 |
| June 25, 2026 | 217.09 | 218.93 | 218.93 | 220.18 | 213.03 | 244,176 |
| June 24, 2026 | 213.95 | 213.72 | 213.72 | 219.11 | 212.3 | 340,642 |
| June 23, 2026 | 217.31 | 215.66 | 215.66 | 220.59 | 213.32 | 152,629 |
| June 22, 2026 | 221.3 | 219.26 | 219.26 | 228 | 219.06 | 165,065 |
| June 18, 2026 | 222.51 | 222.78 | 222.78 | 227.29 | 216.28 | 286,128 |
| June 17, 2026 | 222.69 | 217.51 | 217.51 | 231.39 | 216.6 | 213,459 |
| June 16, 2026 | 222.05 | 220.7 | 220.7 | 224.67 | 219.09 | 178,745 |