AWK vs CWT: American Water Works and California Water Service Group compared
The short version
From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.
- American Water Works is the larger company, worth $24.6B, about 9.1 times California Water Service Group.
- California Water Service Group grew revenue faster over the last year (+8.5% vs +6.2%).
- American Water Works keeps more of each dollar of revenue as operating profit (36.9% vs 18.5%).
- On earnings, American Water Works is the cheaper stock (22.3x vs 22.5x).
Side by side
The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.
| Measure | AWK | CWT |
|---|---|---|
| Market cap | $24.6B | $2.7B |
| Share price | $128.88 | $45.94 |
| Revenue (last fiscal year) | $5.1B | $964M |
| Free cash flow (last fiscal year) | -$1.1B | — |
| Revenue growth, last year | +6.2% | +8.5% |
| Revenue growth per year, last 5 fiscal years | +6.9% | +5.9% |
| Operating margin | 36.9% | 18.5% |
| Net margin | 21.4% | 13.3% |
| Return on equity | 9.7% | 7.4% |
| P/E (trailing) | 22.3x | 22.5x |
| Price / free cash flow | — | — |
| EV / EBITDA | 13.3x | 11.9x |
| FCF growth the price implies | — | — |
| Dividend yield | 2.6% | 2.7% |
| Debt / equity | 2.12x | 2.29x |
| Fundamental grade | D | C |
| Superinvestors holding it | 5 | 2 |
| Insider purchases, last 12 months | 2 | 0 |
Results from SEC filings
Revenue and free cash flow by fiscal year, from each company's 10-K filings.
American Water Works
| Year | Revenue | Free cash flow | Op. margin |
|---|---|---|---|
| 2021 | $3.9B | -$323M | 30.4% |
| 2022 | $3.8B | -$1.2B | 33.6% |
| 2023 | $4.2B | -$701M | 35.5% |
| 2024 | $4.7B | -$811M | 36.7% |
| 2025 | $5.1B | -$1.1B | 36.6% |
California Water Service Group
| Year | Revenue | Free cash flow | Op. margin |
|---|---|---|---|
| 2021 | $766M | — | 16.6% |
| 2022 | $773M | — | 16.5% |
| 2023 | $790M | — | 9.8% |
| 2024 | $906M | — | 24.9% |
| 2025 | $964M | — | 17.7% |
Where the revenue comes from
American Water Works
No segment breakdown reported.
California Water Service Group · by products, 2025
Questions
Which is bigger, American Water Works or California Water Service Group?
American Water Works (AWK), at $24.6B against $2.7B.
Is AWK or CWT cheaper?
By trailing P/E, American Water Works (22.3x) is cheaper than California Water Service Group (22.5x). A lower multiple can also mean the market expects less growth.
Which grows faster, AWK or CWT?
California Water Service Group: revenue grew +8.5% over the last year, against +6.2%.
Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.