If you invested $1000 in American Funds AMCAP Fund (AMPFX) 10 years ago, it would be worth $2,894.74 as of September 20, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,308.74, while $1000 invested 1 year ago would be worth $984.34. This corresponds to total returns of 189.47%, 30.87%, -1.57%, respectively, with annualized returns of 11.21%, 5.53%, -1.57%.
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 18, 2026 | 43.93 | 44 | 44 | 44 | 43.93 | 0 |
| September 17, 2026 | 43.5 | 43.93 | 43.93 | 43.93 | 43.5 | 0 |
| September 16, 2026 | 43.58 | 43.58 | 43.58 | 43.58 | 43.58 | 0 |
| September 15, 2026 | 44.02 | 43.58 | 43.58 | 44.02 | 43.58 | 0 |
| September 11, 2026 | 43.95 | 44.21 | 44.21 | 44.21 | 43.95 | 0 |
| September 10, 2026 | 44.34 | 43.95 | 43.95 | 44.34 | 43.95 | 0 |
| September 09, 2026 | 44.65 | 44.34 | 44.34 | 44.65 | 44.34 | 0 |
| September 08, 2026 | 44.96 | 44.65 | 44.65 | 44.96 | 44.65 | 0 |
| September 04, 2026 | 45.1 | 44.96 | 44.96 | 45.1 | 44.96 | 0 |
| September 03, 2026 | 44.5 | 45.1 | 45.1 | 45.1 | 44.5 | 0 |
| September 02, 2026 | 44.5 | 44.77 | 44.77 | 44.77 | 44.5 | 0 |
| September 01, 2026 | 44.93 | 44.5 | 44.5 | 44.93 | 44.5 | 0 |
| August 31, 2026 | 45.26 | 44.93 | 44.93 | 45.26 | 44.93 | 0 |
| August 28, 2026 | 45.31 | 45.26 | 45.26 | 45.31 | 45.26 | 0 |
| August 27, 2026 | 44.9 | 45.31 | 45.31 | 45.31 | 44.9 | 0 |
| August 26, 2026 | 44.96 | 44.96 | 44.96 | 44.96 | 44.96 | 0 |
| August 25, 2026 | 44.68 | 44.96 | 44.96 | 44.96 | 44.68 | 0 |
| August 24, 2026 | 44.85 | 44.85 | 44.85 | 44.85 | 44.85 | 0 |
| August 21, 2026 | 44.6 | 44.85 | 44.85 | 44.85 | 44.6 | 0 |
| August 20, 2026 | 44.99 | 44.6 | 44.6 | 44.99 | 44.6 | 0 |
| August 19, 2026 | 44.83 | 44.99 | 44.99 | 44.99 | 44.83 | 0 |
| August 18, 2026 | 45.67 | 44.83 | 44.83 | 45.67 | 44.83 | 0 |
| August 17, 2026 | 45.67 | 45.36 | 45.36 | 45.67 | 45.36 | 0 |
| August 14, 2026 | 45.89 | 45.67 | 45.67 | 45.89 | 45.67 | 0 |
| August 13, 2026 | 45.72 | 46.04 | 46.04 | 46.04 | 45.72 | 0 |
| August 12, 2026 | 45.89 | 45.72 | 45.72 | 45.89 | 45.72 | 0 |
| August 11, 2026 | 45.89 | 45.72 | 45.72 | 45.89 | 45.72 | 0 |
| August 10, 2026 | 45.77 | 45.89 | 45.89 | 45.89 | 45.77 | 0 |
| August 07, 2026 | 45.42 | 45.77 | 45.77 | 45.77 | 45.42 | 0 |
| August 06, 2026 | 45.64 | 45.42 | 45.42 | 45.64 | 45.42 | 0 |
| August 05, 2026 | 45.62 | 45.64 | 45.64 | 45.64 | 45.62 | 0 |
| August 04, 2026 | 45.62 | 45.62 | 45.62 | 45.62 | 45.62 | 0 |
| August 03, 2026 | 44.89 | 44.89 | 44.89 | 44.89 | 44.89 | 0 |
| July 31, 2026 | 44.01 | 44.01 | 44.01 | 44.01 | 44.01 | 0 |
| July 30, 2026 | 43.21 | 43.21 | 43.21 | 43.21 | 43.21 | 0 |
| July 29, 2026 | 42.78 | 42.78 | 42.78 | 42.78 | 42.78 | 0 |
| July 28, 2026 | 43.47 | 43.47 | 43.47 | 43.47 | 43.47 | 0 |
| July 27, 2026 | 43.23 | 43.23 | 43.23 | 43.23 | 43.23 | 0 |
| July 23, 2026 | 43.17 | 43.17 | 43.17 | 43.17 | 43.17 | 0 |
| July 22, 2026 | 43.71 | 43.71 | 43.71 | 43.71 | 43.71 | 0 |
| July 21, 2026 | 43.91 | 43.91 | 43.91 | 43.91 | 43.91 | 0 |
| July 20, 2026 | 43.62 | 43.62 | 43.62 | 43.62 | 43.62 | 0 |
| July 17, 2026 | 43.68 | 43.68 | 43.68 | 43.68 | 43.68 | 0 |
| July 16, 2026 | 44.47 | 44.47 | 44.47 | 44.47 | 44.47 | 0 |
| July 15, 2026 | 44.79 | 44.79 | 44.79 | 44.79 | 44.79 | 0 |
| July 14, 2026 | 44.49 | 44.49 | 44.49 | 44.49 | 44.49 | 0 |
| July 13, 2026 | 44.32 | 44.32 | 44.32 | 44.32 | 44.32 | 0 |
| July 10, 2026 | 44.84 | 44.84 | 44.84 | 44.84 | 44.84 | 0 |
| July 09, 2026 | 44.39 | 44.39 | 44.39 | 44.39 | 44.39 | 0 |
| July 08, 2026 | 44.39 | 44.39 | 44.39 | 44.39 | 44.39 | 0 |
| July 07, 2026 | 44.56 | 44.56 | 44.56 | 44.56 | 44.56 | 0 |
| July 06, 2026 | 44.79 | 44.79 | 44.79 | 44.79 | 44.79 | 0 |
| July 02, 2026 | 44.48 | 44.48 | 44.48 | 44.48 | 44.48 | 0 |
| July 01, 2026 | 44.51 | 44.51 | 44.51 | 44.51 | 44.51 | 0 |
| June 30, 2026 | 44.07 | 44.07 | 44.07 | 44.07 | 44.07 | 0 |
| June 29, 2026 | 44.07 | 44.07 | 44.07 | 44.07 | 44.07 | 0 |
| June 26, 2026 | 43.41 | 43.41 | 43.41 | 43.41 | 43.41 | 0 |
| June 25, 2026 | 43.45 | 43.45 | 43.45 | 43.45 | 43.45 | 0 |
| June 24, 2026 | 43.45 | 43.45 | 43.45 | 43.45 | 43.45 | 0 |
| June 23, 2026 | 43.23 | 43.23 | 43.23 | 43.23 | 43.23 | 0 |