Quarterly Returns (%)American Electric Power Company Inc
| Years | Q1 | Q2 | Q3 | Q4 | Annual |
|---|---|---|---|---|---|
| 1990 | 0 | 0.5 | -8.7 | 4.9 | 0 |
| 1991 | 6.3 | -0.6 | 9.1 | 14 | 32.6 |
| 1992 | -8.5 | 5.7 | 5.4 | 2.3 | 4.3 |
| 1993 | 13.3 | 4 | 3.6 | -2 | 19.6 |
| 1994 | -15.7 | -6.4 | 13.2 | 6.8 | -4.6 |
| 1995 | -1.8 | 12.8 | 5.3 | 13.9 | 31.9 |
| 1996 | 4.5 | 3.7 | -3 | 2.7 | 7.5 |
| 1997 | 1.8 | 3.2 | 9.9 | 14.9 | 32.7 |
| 1998 | -1.5 | -8.5 | 9.1 | -2.4 | -4.1 |
| 1999 | -14.5 | -4 | -7.7 | -4.2 | -27.4 |
| 2000 | -5.5 | 1.1 | 34.4 | 20.8 | 54.8 |
| 2001 | 2.5 | -1.8 | -6.6 | 0.7 | -1.3 |
| 2002 | 7.4 | -11.2 | -26.6 | -2 | -32.8 |
| 2003 | -14.1 | 32.3 | 1.9 | 3 | 19.3 |
| 2004 | 9 | -1.7 | 1 | 8.6 | 17.5 |
| 2005 | 0.2 | 9.4 | 8.7 | -5.6 | 12.3 |
| 2006 | -7.3 | 1.8 | 7.3 | 16.8 | 19.6 |
| 2007 | 15.5 | -8.9 | 1.4 | -0.1 | 13.1 |
| 2008 | -9.7 | -2.5 | -7 | -8.9 | -25.5 |
| 2009 | -23.2 | 16.2 | 10.2 | 13.7 | 11.8 |
| 2010 | -0.5 | -4.3 | 13.5 | 0.5 | 8.6 |
| 2011 | -1.1 | 8.6 | 2.2 | 10 | 20.7 |
| 2012 | -5.5 | 3.9 | 9.9 | -1.8 | 8.2 |
| 2013 | 15.2 | -6.8 | -1.5 | 9 | 14.2 |
| 2014 | 9.5 | 11.1 | -5.4 | 17.3 | 35.1 |
| 2015 | -6.6 | -4.9 | 8.4 | 3.5 | -0.4 |
| 2016 | 15 | 6.5 | -7.6 | -1 | 11.9 |
| 2017 | 7.6 | 4.4 | 2 | 5.3 | 20.9 |
| 2018 | -5.9 | 2.4 | 2.1 | 6.4 | 5.4 |
| 2019 | 12.1 | 6.2 | 7.5 | -0.1 | 26 |
| 2020 | -5 | 4 | 8 | 1.9 | -11.6 |
| 2021 | 1.7 | -0.1 | -4 | 9 | 6.3 |
| 2022 | 13.5 | -4.5 | 10.9 | -10.7 | 7.3 |
| 2023 | -4.2 | -7.5 | -10.7 | 13.1 | -14.5 |
| 2024 | 6 | 4.5 | 1.7 | -4.2 | 13.6 |
| 2025 | -0.2 | 0 | 0 | -0.2 |