Ameren Corp (NYSE:AEE) — Market Cap & Net Worth
Market Cap & Net Worth: Ameren Corp (AEE)
Ameren Corp (NYSE:AEE) has a market capitalization of $28.52 Billion ($28.52 Billion) as of September 17, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #932 globally and #406 in its home market, demonstrating a -3.24% decrease in market value over the past year.
Market capitalization, also known as net worth in stock markets, is calculated by multiplying Ameren Corp's stock price $103.02 by its total outstanding shares 276843251 (276.84 Million). Also see AEE asset base for a full breakdown of the balance sheet.
Ameren Corp Market Cap History: 2015 to 2026
Ameren Corp's market capitalization history from 2015 to 2026. Data shows growth from $9.25 Billion to $28.52 Billion (10.72% CAGR). Also see Ameren Corp operating cash flow efficiency for how efficiently the company converts equity into cash flow.
Index Memberships
Ameren Corp is a constituent of 1 market index:
| Index | Total Market Cap | Weight (%) | Rank by Market Cap |
|---|---|---|---|
|
S&P 500 Index
GSPC
|
$62.85 Trillion | 0.06% | #291 of 503 |
Weight: Ameren Corp's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.
Ameren Corp Market Cap to Earnings & Revenue Ratios Timeline
This chart shows how Ameren Corp's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check AEE live share price for real-time trading data and today's change.
Latest Price to Sales (P/S) Ratio
3.14x
Ameren Corp's market cap is 3.14 times its annual revenue
Latest Price to Earnings (P/E) Ratio
18.99x
Ameren Corp's market cap is 18.99 times its annual earnings
What These Ratios Tell Investors:
- Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
- Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
- Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
- Industry comparison provides context for whether the company is valued higher or lower than peers.
| Year | Market Cap (USD) | Revenue (USD) | Net Income (USD) | P/S Ratio | P/E Ratio |
|---|---|---|---|---|---|
| 2016 | $11.62 Billion | $6.08 Billion | $653.00 Million | 1.91x | 17.80x |
| 2017 | $13.47 Billion | $6.17 Billion | $523.00 Million | 2.18x | 25.76x |
| 2018 | $15.36 Billion | $6.29 Billion | $815.00 Million | 2.44x | 18.85x |
| 2019 | $18.56 Billion | $5.91 Billion | $828.00 Million | 3.14x | 22.41x |
| 2020 | $19.35 Billion | $5.79 Billion | $871.00 Million | 3.34x | 22.21x |
| 2021 | $22.66 Billion | $6.39 Billion | $990.00 Million | 3.54x | 22.89x |
| 2022 | $23.24 Billion | $7.96 Billion | $1.07 Billion | 2.92x | 21.64x |
| 2023 | $19.50 Billion | $7.50 Billion | $1.15 Billion | 2.60x | 16.93x |
| 2024 | $24.68 Billion | $7.62 Billion | $1.18 Billion | 3.24x | 20.88x |
| 2025 | $27.65 Billion | $8.80 Billion | $1.46 Billion | 3.14x | 18.99x |
Competitor Companies of AEE by Market Capitalization
Companies near Ameren Corp in the global market cap rankings as of September 17, 2026. Review AEE intangible-adjusted equity ratio to assess the quality of the company's equity after excluding intangible assets.
Key companies related to Ameren Corp by market ranking:
- Nextera Energy Inc (NYSE:NEE): Ranked #137 globally with a market cap of $168.84 Billion USD.
- Southern Company (NYSE:SO): Ranked #275 globally with a market cap of $94.64 Billion USD.
- Duke Energy Corporation (NYSE:DUK): Ranked #286 globally with a market cap of $91.83 Billion USD.
- National Grid PLC ADR (NYSE:NGG): Ranked #310 globally with a market cap of $86.46 Billion USD.
| Rank | Company | Symbol | Market Cap | Price |
|---|---|---|---|---|
| #137 | Nextera Energy Inc | NYSE:NEE | $168.84 Billion | $81.07 |
| #275 | Southern Company | NYSE:SO | $94.64 Billion | $85.95 |
| #286 | Duke Energy Corporation | NYSE:DUK | $91.83 Billion | $117.77 |
| #310 | National Grid PLC ADR | NYSE:NGG | $86.46 Billion | $86.96 |
Ameren Corp Historical Marketcap From 2015 to 2026
Between 2015 and today, Ameren Corp's market cap moved from $9.25 Billion to $ 28.52 Billion, with a yearly change of 10.72%.
| Year | Market Cap | Change (%) |
|---|---|---|
| 2026 | $28.52 Billion | +3.16% |
| 2025 | $27.65 Billion | +12.03% |
| 2024 | $24.68 Billion | +26.53% |
| 2023 | $19.50 Billion | -16.07% |
| 2022 | $23.24 Billion | +2.55% |
| 2021 | $22.66 Billion | +17.11% |
| 2020 | $19.35 Billion | +4.27% |
| 2019 | $18.56 Billion | +20.82% |
| 2018 | $15.36 Billion | +13.99% |
| 2017 | $13.47 Billion | +15.93% |
| 2016 | $11.62 Billion | +25.68% |
| 2015 | $9.25 Billion | -- |
End of Day Market Cap According to Different Sources
On Sep 16th, 2026 the market cap of Ameren Corp was reported to be:
| Source | Market Cap |
|---|---|
| Yahoo Finance | $28.52 Billion USD |
| MoneyControl | $28.52 Billion USD |
| MarketWatch | $28.52 Billion USD |
| marketcap.company | $28.52 Billion USD |
| Reuters | $28.52 Billion USD |
Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.
About Ameren Corp
Ameren Corporation, together with its subsidiaries, operates as a public utility holding company in the United States. The company operates through four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. It engages in the rate-regulated electric generation, transmission, and distribution business and natural gas transmission and… Read more