Monthly Returns (%)Great Lakes Dredge & Dock Corporation
| Years | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2006 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2007 | 5.9 | 3.9 | -2.9 | 12.4 | 17 | 4.8 | -12.2 | 6.4 | -1.2 | 2.1 | -0.2 | -2.1 | 35.5 |
| 2008 | -27.4 | -3.3 | -15.4 | 15.6 | 1.3 | 1.3 | 6.4 | 15.2 | -15.5 | -29 | -40.2 | 55.5 | -51.9 |
| 2009 | -19.5 | -27.5 | 25 | 31.8 | 31.4 | -8 | 21.1 | 12.8 | 7.2 | -12.1 | -4 | 10.3 | 58.3 |
| 2010 | -8.7 | -23.6 | 16.8 | 3.2 | 7.2 | 3.5 | -6.7 | -9.8 | 15.5 | 6.7 | 23.6 | -3.7 | 15.1 |
| 2011 | 12.9 | -5.3 | -2.9 | -2.3 | -18.5 | -7.8 | 6.8 | -17.9 | -16.3 | 26.6 | 17.4 | -7.8 | -23.4 |
| 2012 | 14.9 | 10.9 | 2.2 | 2.6 | -12.3 | 9.9 | 0.1 | 2.6 | 5.6 | 3.2 | 11.1 | 4 | 66.6 |
| 2013 | 5 | 3.9 | -31 | 2.8 | 19.9 | -5.8 | -1.7 | -12.5 | 10.4 | 9.4 | 9.6 | 3.3 | 3 |
| 2014 | -18.2 | 9.7 | 10.5 | -5.5 | -11.7 | 4.9 | -9.6 | 5.5 | -18.9 | 13.1 | 8.4 | 12.9 | -7 |
| 2015 | -9.2 | -21.5 | -1.5 | -3.5 | -4.1 | 7.2 | -14.9 | 9.5 | -9.2 | -20.6 | 13.3 | -12.6 | -53.7 |
| 2016 | -13.1 | -1.2 | 31.2 | 2.5 | -0.2 | -4.4 | 1.8 | -13.1 | -9.3 | 1.4 | 19.7 | -1.2 | 6.1 |
| 2017 | 23.8 | -16.4 | -8.1 | 13.8 | -8.8 | 3.6 | -8.1 | 2.5 | 19.8 | 5.2 | -2 | 8 | 28.6 |
| 2018 | -13 | -3.2 | 1.1 | 0 | 9.4 | 4.4 | 2.9 | 1.5 | 13.1 | -6.3 | 27.5 | -10.7 | 22.6 |
| 2019 | 6.8 | 25.9 | 0.1 | 11.6 | 6.9 | 2.3 | -1.1 | 1 | -4.2 | 3.1 | 0.6 | 1.3 | 65 |
| 2020 | -2.8 | -11.2 | -12 | 6.5 | 4.9 | -0.1 | -9.7 | 12.1 | 1.5 | 8.6 | 9.3 | 16.7 | 20.6 |
| 2021 | 4.6 | 10.2 | -4 | 7.7 | -6.9 | 0 | 5.4 | -1.9 | -0.1 | 0.9 | -2.6 | 6.1 | 19.4 |
| 2022 | -12.9 | 3.1 | -0.6 | -1.6 | 6.4 | -10.8 | -1.4 | -26 | -20.8 | -0.3 | -3.2 | -18.7 | -62.2 |
| 2023 | 15.6 | -16.6 | -5.3 | 5.5 | 10.7 | 28.7 | 2.9 | 5.1 | -9.7 | -4.6 | -11.6 | 14.3 | 29.1 |
| 2024 | -0.5 | 17 | -2.1 | -3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27.7 |