Monthly Returns (%)Amphastar Pharmaceuticals Inc.
| Years | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.2 | 0 | 0 |
| 2011 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -100 |
| 2012 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2013 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2014 | 0 | 0 | 0 | 0 | 0 | 0 | -11.3 | 36.2 | -3.6 | -13 | 2.9 | 11.3 | 0 |
| 2015 | 4.5 | 15.4 | 6.9 | -3.3 | 6.1 | 14.6 | -7.5 | -20.9 | -9.2 | 1.3 | 29.7 | -7.3 | 22.6 |
| 2016 | -15.3 | -12.6 | 14 | 2.5 | 27.9 | 2.5 | 0.4 | 17.4 | -0.2 | -4.4 | 11.7 | -9.1 | 29.4 |
| 2017 | -14.5 | -1.8 | -6.3 | 4.1 | 13.1 | 4.6 | -3.3 | -7.4 | 11.6 | 1.1 | 8.4 | -1.8 | 4.5 |
| 2018 | -3.1 | -1.5 | 2.1 | 1.8 | -17.2 | -3.4 | 14.4 | 8.8 | 1.4 | -6.7 | 21 | -8.4 | 3.4 |
| 2019 | 14.4 | 9.2 | -17.8 | 3.9 | -9.6 | 10 | -3.3 | 8.7 | -9.1 | -3.4 | 0.2 | -2.1 | -3.9 |
| 2020 | -0.9 | -19.7 | -2.4 | 14.2 | 10 | 20.5 | -10.9 | 1.8 | -8 | 4.5 | -9.3 | 13.2 | 5.2 |
| 2021 | -9.6 | -3.6 | 3.3 | -4 | 8.7 | 6.6 | 2.9 | -5.2 | -2.1 | -2.9 | 5.9 | 18.7 | 16.8 |
| 2022 | -1.7 | 20 | 29.6 | -1.2 | 6.1 | -7.6 | 6.9 | -20.4 | -5.1 | 10 | -4.6 | -5 | 19.3 |
| 2023 | 8 | 5.3 | 17.7 | -4.6 | 24 | 29.5 | 5.6 | -12.2 | -13.7 | -1.6 | 24.4 | 9.8 | 120.7 |
| 2024 | -13.7 | -12.7 | -5.7 | -4.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -21 |