Utilities - Regulated Water Stocks in the US

The largest Utilities - Regulated Water stocks in the US by market value are American Water Works Company, Inc. ($29.8B), Companhia de Saneamento Básico do Estado de São Paulo - SABESP ($16.1B) and Essential Utilities, Inc. ($12.8B), at prices of 4 Nov 2026.

• American Water Works Company, Inc.: $149.62 | market value $29.8B | P/E 22.8
• Companhia de Saneamento Básico do Estado de São Paulo - SABESP: $4.62 | market value $16.1B | P/E 12.9
• Essential Utilities, Inc.: $45.13 | market value $12.8B | P/E 19.6
• American States Water Company: $88.61 | market value $3.5B | P/E 22.7
• California Water Service Group: $49.96 | market value $3.1B | P/E 21.9
• H2O America: $62.65 | market value $3.0B | P/E 23.8
• Middlesex Water Company: $59.20 | market value $1.1B | P/E 21.9
• The York Water Company: $32.26 | market value $524M | P/E 20.9
• Consolidated Water Co.: $27.39 | market value $439M | P/E 29.3
• Artesian Resources Corporation: $33.85 | market value $350M | P/E 14.8

The other 3 Utilities - Regulated Water companies are in the full list below.

Share price | market value | P/E, biggest first. Prices and market values as of 4 Nov 2026; ratios as in the score list below.

Ranked by the 4-Factor Sector Score (growth & earnings 35, capital efficiency 25, valuation 20, relative strength 20). Prices as of 4 Nov 2026.

All 13 listed US Utilities - Regulated Water companies are named here, largest first. Every figure is equal-weighted across those companies and carries its own as-of date. One large company cannot set the reading.

1. American Water Works Company, Inc.$29.8B
2. Companhia de Saneamento Básico do Estado de São Paulo - SABESP$16.1B
3. Essential Utilities, Inc.$12.8B
4. American States Water Company$3.5B
5. California Water Service Group$3.1B
6. H2O America$3.0B
7. Middlesex Water Company$1.1B
8. The York Water Company$524M
9. Consolidated Water Co. Ltd.$439M
10. Artesian Resources Corporation$350M
11. Cadiz Inc.$309M
12. Pure Cycle Corporation$260M
13. Global Water Resources, Inc.$244M

13 Utilities - Regulated Water companies in the Utilities - Regulated Water industry group (every listed company) have a page on Sector Alpha, by market value as of 4 November 2026, and all 13 are listed below, largest first. The largest is American Water Works Company, Inc. ($29.8 billion) and the smallest with a market value is Global Water Resources, Inc.

Download all 13 Utilities - Regulated Water companies (CSV)

The line below covers up to 5.2 years and opens on the 5Y view; the buttons cut it shorter. Over the last two years (104 weeks) this industry is 18% behind S&P 500. Earnings across its companies grew 2% on average over the last four reported quarters, close to flat.

Price down, no fundamental support. 4 of 13 companies ahead of S&P 500 by 5% or more over three months.

Ahead of S&P 500 on the three-month view for 3 weeks running; 9 of the 13 companies in the industry index above their 200-day average (4 more than four weeks earlier); 4 of those 13 ahead of S&P 500 by 5% or more over three months (2 more than four weeks earlier); earnings rising at 6 of the 13 that report earnings.

Ahead of S&P 500 for 3 weeks after being behind, with 2 → 4 of 13 participating. Earnings mixed, 6 of 13 members have higher trailing twelve-month earnings than a year ago.

Both lines start at 200 in the same week, so the gap between them tells the story: the industry line is an equal-weighted index of its 13 companies. The bars underneath are trailing 12-month earnings per share, one bar per reported quarter, each member set to 100 at the start and the industry taking the middle value, so a price line pulling away from flat bars means the market is paying more for the same earnings. A bar turns grey when that figure is lower than the quarter before. The rules are fixed and the same everywhere on this site: ahead by 5% or more over three months, or behind by 20% or more over a year while earnings grew 20% or more. Hover or tap any point to read both values and the gap.

Utilities - Regulated Water has done worse than the S&P 500 by 8.6% over the last 52 weeks. Over 13 weeks the gap is a lead of 3.1%. Essential Utilities, Inc. is the strongest against the sector itself at +10.5%.

Utilities - Regulated Water has done worse than the S&P 500 by 8.6% over 52 weeks, but is 3.1% ahead over the last 13 weeks. 6 of 13 companies we track are beating the S&P 500 on relative strength (how a share price has done against the index over recent months), and 6 of 13 are ahead of the industry itself.

A score that ranks each company against the others in its industry. The four parts shown always add up to the total: Growth & earnings (35), Capital efficiency (25), Valuation (20), and Relative strength (20). Missing or old evidence affects only its own part, never as a hidden adjustment.

American States Water Company has the strongest current balance of earnings trajectory, business quality, valuation and price confirmation, with 78.6% evidence confidence.

Essential Utilities, Inc. scores well on valuation against its peers or its own history, but its earnings have not yet improved enough to back that up.

H2O America has the strongest one-year price move in Utilities - Regulated Water at +31.4%. Essential Utilities, Inc. leads on relative strength against the S&P 500, at +7.0%. 6 of 13 companies we track are ahead of the index on that measure. Every line covers 314 weekly closes through 4 November 2026.

Price and relative strength

Price · same starting point: Every company, the sector's own index and S&P 500 all start level on the left edge of the window, so only the distance between the lines counts: the highest line has risen the most since then, and the chart at the top of this page is drawn the same way. It opens on one year; the buttons beside it stretch that to three or five.

RS vs S&P 500: How far ahead of or behind S&P 500 each company has been running, measured against its own recent average of that comparison, so the flat line at zero IS S&P 500: above it the company is beating the market, below it the market is beating the company. It opens on one year.

RS vs sector: The same measure taken against Utilities - Regulated Water itself instead of the whole market, so the flat line at zero is the sector: above it the company is beating its own peers, which is the sharper test of the two. It opens on one year.

Biggest one-year moves

Strongest against S&P 500

Strongest against the sector itself

Companhia de Saneamento Básico do Estado de São Paulo - SABESP has the highest Revenue among the 13 Utilities - Regulated Water companies compared here, at $40,875 million. American Water Works Company, Inc. is next at $5,284 million. Pure Cycle Corporation has the highest Revenue growth at 17.9%, so level and change sit with different companies.

What the numbers say: Companhia de Saneamento Básico do Estado de São Paulo - SABESP is the largest at $40,875 million, 673.6% ahead of American Water Works Company, Inc. Pure Cycle Corporation's growth is 17.9% from a $33 million base, with 20 reported quarters out of the last 20. Fast growth from a smaller base is not yet the same as proven size.

What this means: Companhia de Saneamento Básico do Estado de São Paulo - SABESP is the size to compare against; Pure Cycle Corporation is the one growing fastest. The faster grower has to keep that growth and turn it into margin and returns before it counts as more than a fast start.

This conclusion weakens if: Companhia de Saneamento Básico do Estado de São Paulo - SABESP's growth falls below Pure Cycle Corporation's for two consecutive comparable reports while operating margin also compresses.

Revenue is compared on a common reported-currency basis. Growth is year-on-year, so seasonality does not masquerade as progress.

Revenue · company comparison

Revenue · largest

Revenue growth · fastest growers

All-company data · latest reported quarter

In every all-company table on this page, each figure is the company’s latest single reported quarter. The rankings above them use trailing-twelve-month or current-market values, so a company can legitimately show a different number in each.

Revenue shows both size and speed. A large company can absorb shocks and pay for wide distribution; faster growth can mean market-share gains, new capacity or stronger demand. The best sign is usually growth that lasts without hurting margins and returns.

The York Water Company has the highest OPM among the 13 Utilities - Regulated Water companies compared here, at 42.8%. American Water Works Company, Inc. is next at 33%. 11 of 13 companies report a comparable reading, the latest through Jun 2026.

What the numbers say: The York Water Company leads opm at 42.8%; the second comparison lacks enough current evidence.

What this means: The York Water Company sets the level to compare against; the company improving fastest needs another report to confirm the change.

This conclusion weakens if: The next two comparable reports reverse the current margin change signal.

Operating margin compares operating profit with revenue. Improvement is measured in percentage points, not percentage growth.

No quarter-by-quarter OPM chart yet: these companies have too few comparable reported quarters. The latest figures are in the table below.

OPM · highest

Margin change · fastest expanders

Not enough comparable data.

All-company data · latest reported quarter

Margin change is left out: no company here reports it on a comparable basis.

Companhia de Saneamento Básico do Estado de São Paulo - SABESP has the highest Net profit among the 13 Utilities - Regulated Water companies compared here, at $8,040 million. American Water Works Company, Inc. is next at $1,128 million. The York Water Company has the highest Profit growth at 20%, so level and change sit with different companies.

What the numbers say: Companhia de Saneamento Básico do Estado de São Paulo - SABESP earns the most, $8,040 million of profit over the last 12 months, 612.8% above American Water Works Company, Inc. The York Water Company shows 20% growth from a profit base of $24 million. A fast rate from a small base matters less than a large profit that keeps coming.

What this means: Companhia de Saneamento Básico do Estado de São Paulo - SABESP sets the level to compare against; the company improving fastest needs another report to confirm the change.

This conclusion weakens if: The next two comparable reports reverse the current profit growth signal.

Net profit is the residual after operating costs, interest and tax. Growth off a loss or near-zero base is excluded from the fastest-grower rank.

Net profit · company comparison

Net profit · largest

Profit growth · fastest growers

All-company data · latest reported quarter

Companhia de Saneamento Básico do Estado de São Paulo - SABESP has the highest ROCE among the 13 Utilities - Regulated Water companies compared here, at 12.6%. American States Water Company is next at 8.9%. Pure Cycle Corporation has the highest ROCE change at +1.1 percentage points, so level and change sit with different companies.

What the numbers say: Companhia de Saneamento Básico do Estado de São Paulo - SABESP leads ROCE at 12.6%, 3.7 percentage points above American States Water Company. A high return reported once may be one good year; a high return reported year after year shows a lasting business.

What this means: Companhia de Saneamento Básico do Estado de São Paulo - SABESP sets the level to compare against; the company improving fastest needs another report to confirm the change.

This conclusion weakens if: The next two comparable reports reverse the current roce change signal.

ROCE asks how much operating return the business earns on the capital employed. Direction matters, but a single exceptional year should not be mistaken for durability.

Return on capital · company comparison

ROCE · highest

ROCE change · fastest improvers

All-company data · latest reported quarter

Companhia de Saneamento Básico do Estado de São Paulo - SABESP has the lowest PEG among the 13 Utilities - Regulated Water companies compared here, at 0.48×. Essential Utilities, Inc. is next at 0.77×. The same company also has the lowest P/E, at 12.9×. 12 of 13 companies report a comparable reading, the latest through Jun 2026.

What the numbers say: Companhia de Saneamento Básico do Estado de São Paulo - SABESP has the lowest comparable PEG at 0.48×, 37.7% below Essential Utilities, Inc. That would need today's multiple, the company's own history and steady growth to agree.

What this means: A low valuation is a reason to look closer at the business, not a conclusion on its own.

This conclusion weakens if: The next two comparable reports reverse the current p/e signal.

PEG is shown only when earnings are positive and three-year EPS growth is between 5% and 60%. It is worked out the same way every time, as the P/E on the last 12 months of reported earnings divided by that growth rate, never on expected earnings. On Indian companies it is shown only where the two data feeds agreed. Where any of that fails the ratio is left out rather than printed: a P/E divided by a loss, or by growth measured off a tiny base, is a number that looks precise and means nothing.

Valuation · company comparison

PEG · lowest PEG

P/E · lowest P/E

All-company data · latest reported quarter

This Utilities - Regulated Water comparison names 4 specific ways its own evidence can mislead, all listed below. All 13 companies here report on comparable dates, so no rank carries a stale marker. A high growth rate can still come from a very small starting figure.

Keep these limits visible

• A high growth rate can come from a very small starting figure. The page keeps level and change separate for that reason.
• A high ROCE can be temporary, or look high because the capital base is small. It is best read beside margin, cash flow and how much is spent back on the business.
• The 4-Factor Sector Score ranks published data only. Management quality, upcoming events and risks are not part of it.
• An “all companies” line chart preserves completeness, but rank changes should be checked against reporting dates before drawing a conclusion.

This comparison is built from the reported filings of 13 Utilities - Regulated Water companies, normalized to a common $ scale and a shared quarter axis of up to 20 quarters each. Fundamentals run through Jun 2026 and market data through 4 November 2026.

These 22 answers restate the Utilities - Regulated Water comparison above in question form. Every one is computed from the same 13 companies and the same reported filings as the rankings and charts, current through Jun 2026. Price and relative-strength answers run through 4 November 2026. Nothing here is estimated, and none of it is a recommendation.