American Water Works Co (STU:AWC) Market Cap: €22,806 Mil (As of Jun. 29, 2026)


STU:AWC American Water Works Co Inc STU:AWC
84 GF Score
Price €116.15
GF Value €136.14
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is American Water Works Co Market Cap?

American Water Works Co STU:AWC +1.93% 84 Market Cap is €22,806 Mil as of Jun. 29, 2026. GuruFocus rates STU:AWC with a GF Score™ of 84/100 and a GF Value™ of €136.14 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 515 Utilities - Regulated companies, American Water Works Co ranks better than 92.43% on this metric.

Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). American Water Works Co's share price for the quarter that ended in Mar. 2026 was €117.65. American Water Works Co's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 195 Mil. Therefore, American Water Works Co's market cap for the quarter that ended in Mar. 2026 was €22,975 Mil.

American Water Works Co's quarterly market cap declined from Sep. 2025 (€22,703 Mil) to Dec. 2025 (€21,616 Mil) but then increased from Dec. 2025 (€21,616 Mil) to Mar. 2026 (€22,975 Mil).

American Water Works Co's annual market cap declined from Dec. 2023 (€23,368 Mil) to Dec. 2024 (€23,244 Mil) and declined from Dec. 2024 (€23,244 Mil) to Dec. 2025 (€21,616 Mil).

Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. American Water Works Co's Enterprise Value for Today is €36,502 Mil.


American Water Works Co  (STU:AWC) Market Cap Explanation

Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the company’s debt. The real price you pay is the Enterprise Value.

Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.


American Water Works Co Market Cap Related Terms


American Water Works Co Market Cap Historical Data

* Premium members only.

The historical data trend for American Water Works Co's Market Cap can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

American Water Works Co Market Cap Chart

American Water Works Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Market Cap
Get a 7-Day Free Trial Premium Member Only Premium Member Only 30,056.62 26,438.52 23,367.60 23,244.21 21,615.85

American Water Works Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Market Cap Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 26,589.75 22,875.24 22,702.56 21,615.85 22,974.69

STU:AWC vs WTRG, AWR, CWT: Market Cap Comparison

For the Utilities - Regulated Water subindustry, American Water Works Co's Market Cap, along with its competitors' market caps and Market Cap data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


American Water Works Co Market Cap vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, American Water Works Co's Market Cap distribution charts can be found below:

* The bar in red indicates where American Water Works Co's Market Cap falls into.


STU:AWC
84GF Score
American Water Works Co Inc STU:AWC
Market Cap is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

American Water Works Co Market Cap Calculation

Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.

American Water Works Co's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as

Market Cap (A: Dec. 2025 )=Share Price (A: Dec. 2025 )*Shares Outstanding (EOP) (A: Dec. 2025 )
=€110.75*195.177
=€21,616

American Water Works Co's Market Cap for the quarter that ended in Mar. 2026 is calculated as

Market Cap (Q: Mar. 2026 )=Share Price (Q: Mar. 2026 )*Shares Outstanding (EOP) (Q: Mar. 2026 )
=€117.65*195.280
=€22,975

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Market Cap →
What does a Market Cap of €22,806 Mil mean?
American Water Works Co (STU:AWC) has a Market Cap of €22,806 Mil as of Jun. 29, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on American Water Works Co and its competitors. According to the industry distribution chart, American Water Works Co ranks #39 out of 515 companies in the Utilities - Regulated industry, placing it in the top 7.6%.
Is American Water Works Co's Market Cap too high?
American Water Works Co's current Market Cap is €22,806 Mil. Based on the distribution chart, American Water Works Co ranks #39 out of 515 companies in the Utilities - Regulated industry, which is in the top quartile — a strong position relative to peers. Overall, American Water Works Co has a GF Score™ of 84/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does American Water Works Co's Market Cap compare to WTRG and AWR?
According to the Utilities - Regulated industry distribution chart, American Water Works Co ranks #39 out of 515 companies for Market Cap. This places American Water Works Co in the top 8% of its industry — outperforming the majority of peers. The industry median Market Cap is 897.97. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for an Utilities - Regulated company?
The median Market Cap among Utilities - Regulated companies is 897.97, based on 515 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on American Water Works Co and its competitors. For the Utilities - Regulated industry, the median Market Cap is 897.97 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. American Water Works Co's current Market Cap is €22,806 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is American Water Works Co stock overvalued right now?
Based on GuruFocus' analysis, American Water Works Co (STU:AWC) is currently considered Modestly Undervalued. The stock's GF Value™ is €136.14, compared to a current price of €116.15 — trading 14.7% below its estimated fair value. The current Market Cap is €22,806 Mil. American Water Works Co's overall GF Score™ is 84/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For American Water Works Co (STU:AWC), the current Market Cap is €22,806 Mil as of Jun. 29, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is American Water Works Co (STU:AWC) Overvalued in 2026?

Based on GuruFocus' analysis, American Water Works Co stock appears to be undervalued. The current stock price of €116.15 is trading 14.7% below its estimated GF Value™ of €136.14. GuruFocus considers American Water Works Co to be Modestly Undervalued.

Key valuation signals for STU:AWC:

  • Market Cap: €22,806 Mil
  • GF Value™: €136.14 vs. price of €116.15 (14.7% below fair value)
  • GF Score™: 84/100 with 3 warning signs

No single metric tells the full story. See the STU:AWC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


American Water Works Co Business Description

Address 1 Water Street, Camden, NJ, USA, 08102-1658
American Water Works is the largest investor-owned US water and wastewater utility, serving nearly 4 million customers in 14 states. It provides water and wastewater services to residential, commercial, and industrial customers and operates predominantly in regulated markets. The company's nonregulated business is water services for military bases, which operates under long-term contracts with regulated-like returns. The proposed Essential Utilities acquisition would add regulated water and wastewater utilities in Ohio, North Carolina, and Texas while increasing its presence in Illinois, Indiana, Pennsylvania, New Jersey, and Virginia.
84GF Score

Get the complete analysis for STU:AWC

Market Cap is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€116.15
Price
€136.14
GF Value