Annual Returns (%) MGE Energy Inc
| Year | Return |
|---|---|
| 1990 | 0 |
| 1991 | 71.94 |
| 1992 | 23.43 |
| 1993 | 18.98 |
| 1994 | 10.54 |
| 1995 | 23.45 |
| 1996 | -1.67 |
| 1997 | 30.15 |
| 1998 | 12.07 |
| 1999 | 0.44 |
| 2000 | 22.46 |
| 2001 | 16.92 |
| 2002 | 3.74 |
| 2003 | 22.93 |
| 2004 | 19.52 |
| 2005 | -2.12 |
| 2006 | 12.48 |
| 2007 | 1.09 |
| 2008 | -2.98 |
| 2009 | 13.28 |
| 2010 | 24.54 |
| 2011 | 13.43 |
| 2012 | 12.57 |
| 2013 | 16.63 |
| 2014 | 21.87 |
| 2015 | 4.66 |
| 2016 | 43.84 |
| 2017 | -1.47 |
| 2018 | -2.9 |
| 2019 | 32.1 |
| 2020 | -11.58 |
| 2021 | 16.84 |
| 2022 | -13.96 |
| 2023 | 2.71 |
| 2024 | 29.9 |
| 2025 | -0.75 |