If you invested €1000 in Assystem S.A. (0OA7.L) 10 years ago, it would be worth €2,154.3 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a €1000 investment made 4 years ago would be worth €1,707.58, while €1000 invested 1 year ago would be worth €859.42. This corresponds to total returns of 115.43%, 70.76%, -14.06%, respectively, with annualized returns of 7.98%, 11.7%, -14.06%.
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 11, 2026 | 40.4 | 40.35 | 40.35 | 40.4 | 39.95 | 4 |
| September 10, 2026 | 40 | 40.35 | 40.35 | 40.6 | 40 | 4 |
| September 09, 2026 | 41.2 | 40.2 | 40.2 | 41.2 | 40.2 | 5 |
| September 08, 2026 | 41.5 | 41.3 | 41.3 | 41.75 | 41.2 | 6 |
| September 07, 2026 | 42.6 | 41.45 | 41.45 | 42.8 | 41.45 | 8 |
| September 04, 2026 | 43.2 | 42.3 | 42.3 | 43.2 | 42.3 | 8 |
| September 03, 2026 | 43.1 | 43.1 | 43.1 | 43.1 | 43.1 | 4 |
| September 02, 2026 | 43.6 | 43.2 | 43.2 | 43.6 | 43 | 8 |
| September 01, 2026 | 43.55 | 43.8 | 43.8 | 43.8 | 43.5 | 43 |
| August 28, 2026 | 44.9 | 44.75 | 44.75 | 45 | 44.75 | 3 |
| August 27, 2026 | 44.2 | 44.1 | 44.1 | 44.2 | 43.6 | 4,008 |
| August 26, 2026 | 44.15 | 44.3 | 44.3 | 44.3 | 44.15 | 4 |
| August 25, 2026 | 44.2 | 44.05 | 44.05 | 44.4 | 44 | 3 |
| August 24, 2026 | 44.6 | 44 | 44 | 44.6 | 44 | 6 |
| August 21, 2026 | 44.55 | 44.4 | 44.4 | 44.8 | 44.4 | 5 |
| August 20, 2026 | 44.4 | 44.5 | 44.5 | 44.8 | 44.4 | 3 |
| August 19, 2026 | 44.85 | 44.85 | 44.85 | 44.85 | 44.85 | 2 |
| August 18, 2026 | 44.8 | 44.9 | 44.9 | 44.95 | 44.8 | 3 |
| August 17, 2026 | 44.6 | 44.9 | 44.9 | 44.9 | 44.6 | 6 |
| August 14, 2026 | 44.6 | 44.75 | 44.75 | 44.8 | 44.4 | 22 |
| August 13, 2026 | 44.8 | 44.6 | 44.6 | 44.8 | 44.6 | 9 |
| August 12, 2026 | 44.2 | 44.8 | 44.8 | 44.9 | 44.2 | 4 |
| August 11, 2026 | 43.95 | 44.4 | 44.4 | 44.4 | 43.8 | 8 |
| August 10, 2026 | 43.3 | 43.7 | 43.7 | 43.8 | 43.25 | 12 |
| August 07, 2026 | 43.55 | 43.8 | 43.8 | 43.8 | 43.55 | 2 |
| August 06, 2026 | 44.25 | 43.75 | 43.75 | 44.25 | 43.45 | 6 |
| August 05, 2026 | 43.7 | 44 | 44 | 44.25 | 43.4 | 6 |
| August 04, 2026 | 42.3 | 43.6 | 43.6 | 43.6 | 42.3 | 20 |
| August 03, 2026 | 42.2 | 42.05 | 42.05 | 42.5 | 41.95 | 2 |
| July 31, 2026 | 42.2 | 42.2 | 42.2 | 42.2 | 42.2 | 2 |
| July 30, 2026 | 43.3 | 42.55 | 42.55 | 43.4 | 42.15 | 9 |
| July 29, 2026 | 42.75 | 43.15 | 43.15 | 43.35 | 42.75 | 9 |
| July 28, 2026 | 42.4 | 43 | 43 | 43.05 | 42.2 | 1,088 |
| July 27, 2026 | 42.2 | 42.5 | 42.5 | 42.5 | 42.1 | 6 |
| July 24, 2026 | 41.6 | 42 | 42 | 42 | 41.5 | 2 |
| July 23, 2026 | 43.3 | 41.75 | 41.75 | 43.6 | 41.6 | 2 |
| July 22, 2026 | 43.55 | 43.55 | 43.55 | 43.55 | 43.55 | 3 |
| July 21, 2026 | 43.8 | 42.65 | 42.65 | 43.8 | 42.65 | 174 |
| July 20, 2026 | 43.4 | 43.6 | 43.6 | 43.6 | 43.3 | 152 |
| July 17, 2026 | 43.2 | 43.2 | 43.2 | 43.3 | 42.85 | 450 |
| July 16, 2026 | 43.7 | 42.9 | 42.9 | 43.95 | 42.9 | 8 |
| July 15, 2026 | 42.6 | 43.8 | 43.8 | 43.8 | 42.4 | 4 |
| July 14, 2026 | 42.4 | 42.85 | 42.85 | 43 | 42 | 105 |
| July 13, 2026 | 43.05 | 42.7 | 42.7 | 43.1 | 42.05 | 4 |
| July 10, 2026 | 43.75 | 43.45 | 43.45 | 43.9 | 43.15 | 3 |
| July 09, 2026 | 42.6 | 42.4 | 42.4 | 42.9 | 42.05 | 3 |
| July 08, 2026 | 41.45 | 42.2 | 42.2 | 42.2 | 40.9 | 5 |
| July 07, 2026 | 41.25 | 41.55 | 41.55 | 41.6 | 41.2 | 6 |
| July 06, 2026 | 42.5 | 43 | 43 | 43 | 42.25 | 10 |
| July 03, 2026 | 41.65 | 41.55 | 41.55 | 41.75 | 41.2 | 8 |
| July 02, 2026 | 40.7 | 42 | 42 | 42 | 40.7 | 6 |
| July 01, 2026 | 40.2 | 40.7 | 40.7 | 40.75 | 40.1 | 13 |
| June 30, 2026 | 41.15 | 40.5 | 40.5 | 41.15 | 40.2 | 6 |
| June 29, 2026 | 40.9 | 40.8 | 40.8 | 41 | 40.8 | 5 |
| June 26, 2026 | 40.1 | 41.2 | 41.2 | 41.2 | 40.1 | 7 |
| June 25, 2026 | 41 | 40.8 | 40.8 | 41 | 40.4 | 1,717 |
| June 24, 2026 | 41.1 | 41 | 41 | 41.4 | 40.9 | 19 |
| June 23, 2026 | 41.5 | 41.25 | 41.25 | 41.5 | 41.05 | 4 |
| June 22, 2026 | 42.2 | 41.5 | 41.5 | 42.2 | 41.25 | 135 |
| June 19, 2026 | 41.3 | 41.6 | 41.6 | 41.6 | 40.8 | 3 |