$1,000 in Ameren Corporation in 2003 → $7,032 today
If you'd invested $1,000 in Ameren Corporation (AEE) on January 1, 2003 — at the December 2002 month-end close of $15.54 — and held to the latest close (2026-08-), you'd have $7,032. That's a +603.2% total return — trailing the S&P 500, where the same $1,000 became $8,761.
Nearby years: 2000 · 2001 · 2002 · 2004 · 2005 · 2006 · 2007 all years →
FAQ
How much is $1,000 invested in AEE in 2003 worth today?
$1,000 invested in Ameren Corporation (AEE) at the month-end close of 2002-12- would be worth $7,032 at the latest month-end close (2026-08-), a total return of +603.2% with dividends reinvested.
Did $1,000 in AEE in 2003 beat the market?
Over the same span, $1,000 in the S&P 500 index would be worth $8,761 — so Ameren Corporation (AEE) trailed the index by +19.7%.
What does "month-end close" mean for this calculation?
The scenario invests at the December 2002 month-end close (the price entering 2003) and values the position at the most recent month-end close (2026-08-). Intra-month extremes are shown on the AEE calculator page.
Is the 2003–2026 return in AEE typical?
No single year is typical. AEE's best calendar-year return since 1998 was about +51.8%, and its worst was -34.5%.
Methodology
Ameren Corporation (AEE) total-return data from January 2003 through the latest month-end close (2026-08-).
The entry price is the 2002 December month-end close and the exit is the latest available month-end close, both from adjusted (split and dividend) Yahoo Finance historical data.
Month-end resolution, no taxes or fees, and history never guarantees the future. For exact-date precision (including buying at a panic low), use the AEE calculator page.
Compute your own AEE scenario
Data: Yahoo Finance. As of 2026-08-. Not financial advice.