Quarterly Returns (%)MGE Energy Inc
| Years | Q1 | Q2 | Q3 | Q4 | Annual |
|---|---|---|---|---|---|
| 1990 | 0 | 6 | 1.6 | 6.9 | 0 |
| 1991 | 13.7 | 11 | 6.8 | 27.1 | 71.9 |
| 1992 | 2.5 | 1.2 | 14.5 | 3.9 | 23.4 |
| 1993 | 9.2 | 0.9 | 11.1 | -2.8 | 19 |
| 1994 | -0.3 | 6.9 | 2.7 | 1 | 10.5 |
| 1995 | 5.2 | -2 | 10 | 7.2 | 23.5 |
| 1996 | 10.2 | -12.2 | 7.5 | -6.4 | -1.7 |
| 1997 | 3.2 | 4.9 | 3.1 | 16.5 | 30.2 |
| 1998 | -2.3 | 8.5 | 3.7 | 1.9 | 12.1 |
| 1999 | -11.4 | 8.2 | 0 | 4.7 | 0.4 |
| 2000 | -8 | 12.6 | 17.1 | 12.1 | 22.5 |
| 2001 | 3.4 | 22 | -1.4 | 7.9 | 16.9 |
| 2002 | 7.5 | -2.3 | -5.6 | 5.6 | 3.7 |
| 2003 | 0.2 | 19.9 | -2.6 | 5.1 | 22.9 |
| 2004 | -0.9 | 7 | -1.4 | 14.4 | 19.5 |
| 2005 | -7.1 | 10.9 | 1.3 | -6.2 | -2.1 |
| 2006 | -1.2 | -5.1 | 5.1 | 13.4 | 12.5 |
| 2007 | -2.1 | -7.9 | 2.8 | 4.2 | 1.1 |
| 2008 | -2.9 | -3.3 | 10.2 | -6.2 | -3 |
| 2009 | -3.8 | 8.2 | 9.9 | -1 | 13.3 |
| 2010 | 0 | 3 | 11 | 9 | 24.5 |
| 2011 | -4.5 | 1.1 | 1.2 | 16.1 | 13.4 |
| 2012 | -4.3 | 7 | 11.4 | -3 | 12.6 |
| 2013 | 9.6 | 0.2 | 1.2 | 6.6 | 16.6 |
| 2014 | 2.7 | 1.4 | -5 | 23.2 | 21.9 |
| 2015 | -2.2 | -12 | 7.2 | 13.4 | 4.7 |
| 2016 | 13.2 | 8.8 | 0.6 | 16.1 | 43.8 |
| 2017 | 0 | -0.5 | 0.9 | -3.1 | -1.5 |
| 2018 | -10.6 | 14.8 | 0.2 | -4.3 | -2.9 |
| 2019 | 13.4 | 8.1 | 10.4 | -0.6 | 32.1 |
| 2020 | -5 | 4 | 8 | 11.8 | -11.6 |
| 2021 | 0.9 | 5.3 | -0.3 | 10.3 | 16.8 |
| 2022 | -2.5 | -2.5 | -15.7 | 7.3 | -14 |
| 2023 | 10.3 | 1.9 | -13.4 | 9.1 | 2.7 |
| 2024 | 8.9 | -4.7 | -1.5 | -3.6 | 29.9 |
| 2025 | -0.8 | 0 | 0 | -0.8 |