American Water Works grew Q2 2026 diluted EPS 8.8% to $1.61 on $52 million of authorized rate increases, but a favourable weather comparison and the permanent loss of Homeowner Services interest income flatter the result, while regulators keep awarding ROEs of 9.55-9.80% against 10.50-10.75% requests.
Rate increases carried the quarter; the earnings growth is thinner than the operating line suggests
American Water Works — the largest regulated water and wastewater utility in the US, serving roughly 14 million people across 14 states plus 19 military installations — reported second-quarter 2026 revenue of $1,355 million, up 6.2% from $1,276 million, and diluted earnings per share of $1.61 versus $1.48. Operating income rose 10.8% to $542 million and the operating margin (the share of revenue left after running the business, before interest and tax) widened to 40.0% from 38.3%.
That headline understates one thing and overstates another. The regulated utility itself did better than the consolidated numbers show — segment net income rose 14.9% — while the consolidated result was held back by the loss of a large, non-recurring interest income stream that had been flattering the "Other" bucket for two years. Meanwhile, roughly a quarter of the revenue increase came from volumes and weather rather than from the rate increases that actually compound.
Authorized ROE, most recent decision (Pennsylvania)
9.55%
—
vs. 10.50–10.75% requested elsewhere
Cash spent on acquisitions, first half
$346M (~52,700 connections)
$13M
Nexus deal alone added ~47,000
Regulated O&M ratio and operating margin are computed from the filing's line items; the company does not present them in the 10-Q.
Where the extra $90 million of revenue came from
The regulated segment's revenue rose $90 million. Management breaks that down precisely, and the split matters:
Driver
Q2 2026
Share of increase
Authorized rate increases, including infrastructure surcharges
+$52M
58%
Acquisitions and organic customer growth
+$11M
12%
Higher customer demand
+$15M
17%
Weather (warm, dry Q2 2026 against an unfavourable Q2 2025)
+$11M
12%
Only the first two lines are structural. A "rate increase" here means a state public utility commission has approved charging customers more, generally to let the company earn a return on money it has already spent on pipes and treatment plants — that spending, once approved, becomes rate base, the asset pool regulators allow the utility to earn on. Rate-driven revenue persists. Demand and weather do not: $26 million of the $90 million, about 29%, was water people happened to use, and it reverses if next summer is wet.
Volumes bear that out. Total billed water volumes rose 3.4% and residential volumes 3.5%, while residential water revenue rose 8.2% ($689M vs $637M) — so about 4.7 points of residential revenue growth was price, and the rest was consumption. Industrial water revenue rose 21.7% on only 3.4% more gallons, which is rate structure and customer mix rather than demand.
One apparent contradiction is worth resolving, because it trips up readers of the non-GAAP table. The MD&A credits weather with $11 million of revenue, yet the company's adjusted-EPS reconciliation subtracts only $0.01 per share for weather in Q2 2026. These measure different things. The $11 million is a year-over-year comparison against a poor Q2 2025; the $0.01 is a deviation from normal weather. Q2 2026 was only slightly better than normal — Q2 2025 was well below it. Across both years the weather swing is worth about $0.04 of the $0.13 of reported EPS growth.
Costs held, but depreciation and interest are doing what capital plans do
Operation and maintenance expense at the regulated business was essentially flat: $409 million against $406 million, a 0.7% increase on 7.6% revenue growth. That is the whole story of the margin expansion. Production costs rose $11 million on higher purchased water, power, chemicals and waste disposal, and employee-related costs rose $9 million, but those were largely offset by $12 million less in operating supplies and services (mostly lower technology costs) and $7 million less in maintenance materials.
Flat O&M against rising revenue is not repeatable indefinitely — the technology and materials reductions look like timing rather than a permanent step down — but it is the lever that lets a utility earn its authorized return between rate cases. Over the first six months the ratio is less flattering: regulated O&M rose 3.1% to $826 million.
Below the operating line the arithmetic turns against the company:
Depreciation and amortization rose $21 million (+8.6%) to $240 million, directly from new plant placed in service. Every dollar of the capital plan brings a dollar of depreciation before the rate case that recovers it — this is regulatory lag, the gap between spending money and being allowed to charge for it.
Interest expense rose $16 million (+10.6%) to $167 million on incremental long-term debt.
Interest income collapsed from $22 million to $3 million. This is the cleanest one-off in the filing: American Water held a seller note from its earlier sale of the Homeowner Services Group, amended on February 2, 2024 to raise the principal to $795 million and the rate to 10.00% from 7.00%. The borrower repaid it in full in February 2026, and the income stops.
Net non-operating expense therefore worsened by $24 million, converting $53 million of operating income growth into $29 million of pre-tax growth. A slightly lower tax rate (22.2% vs 23.1%) carried net income to +9.0%.
That drag lands almost entirely in the "Other" segment, which swung from $1 million of net income to a $16 million loss. Investors reading only the regulated segment's 14.9% earnings growth are reading a cleaner business than the one that exists.
Regulatory scorecard: winning revenue, losing on allowed return
Since January 1, 2026 the company has been granted $216 million of additional annualized revenue — $111 million from general rate cases and $105 million from infrastructure surcharges (mechanisms that let rates adjust for pipe-replacement spending without a full rate case). Six more general rate cases and one surcharge filing are pending, asking for $494 million in total.
The pricing of those approvals is the more important number. Authorized ROE is the return on shareholder equity a regulator permits the utility to earn on its rate base; it sets the ceiling on profitability.
Jurisdiction
Status
Annualized revenue
Authorized / requested ROE
Pennsylvania
Approved July 27, 2026; effective Aug 13
$75M (plus $24M surcharges)
9.55% authorized
West Virginia
Approved March 5, 2026
$20M
9.80% authorized
Maryland
Approved Feb 26, 2026 (settlement)
$2M
9.75% implied
Virginia
Settlement filed June 5, 2026
$16M (asked $22M)
9.75% settled, vs 10.75% requested
Missouri
Filed July 1, 2026
$179M requested
10.50% requested
New Jersey
Filed Jan 16, updated July 27, 2026
$145M requested
10.75% requested
Illinois
Filed Jan 27, updated June 23, 2026
$107M + $15M requested
10.75% requested
Kentucky
Filed May 15, 2026
$18M requested
10.75% requested
California (2027–29)
Partial settlement June 8, 2026
$24M in 2027 test year (asked $43M)
10.20% currently in effect
The pattern is consistent and unfavourable: the company asks for 10.50–10.75% and is awarded 9.55–9.80%. Pennsylvania, its largest approval of the year, came in at 9.55% on a $6.6 billion authorized rate base covering about $1.2 billion of investment through mid-2027. Virginia's settlement cut the ask by 27% and fixed 9.75% for future filings. California's settlement puts the 2027 test year at $24 million against a $43 million request, and the treatment of construction work in progress remains open — if that spending is excluded from rate base, the 2027 figure drops to $20 million.
Two of these outcomes deserve a flag. The California settlement also withdrew the company's request for a Fixed Cost Recovery Account, which would have been full decoupling — a mechanism separating revenue from how much water customers actually use. Without it, California revenue stays exposed to drought and conservation. And in Illinois the requested increase fell from $119 million to $107 million purely because IRS Notice 2026-7 removed Corporate Alternative Minimum Tax effects from rate base; that $12 million was never operational.
Growth spending, and how it is being paid for
The 2026 plan is $3.7 billion of capital investment and acquisitions. The first half delivered $1.8 billion — $1.4 billion of infrastructure work and $346 million of acquisitions — so the plan is on pace. Acquisitions added about 52,700 customer connections, dominated by the June 1 purchase of Nexus Regulated Utilities' systems across eight states for $319 million and roughly 47,000 connections. Another 9,000 connections came organically, and 19 signed agreements worth $236 million for a further 56,600 connections are pending.
The funding picture is where a credit analyst should look. Half-year operating cash flow was $907 million against $1,519 million of cash capital expenditures and $346 million of acquisitions — a $958 million gap. It was covered by three sources, only one of which recurs:
$795 million from repayment of the Homeowner Services seller note. This is a single event, fully received by February 13, 2026, and it will not be available in the second half or in 2027.
$476 million of equity, from physically settling 3,403,756 shares under forward sale agreements struck in August 2025 at an initial forward price of $139.657. A further 4,694,836 shares — roughly $656 million at that price, and about 2.4% of the current 196 million diluted share count — remain to be settled by December 31, 2026.
Net debt: $1,293 million issued against $1,061 million repaid. The company placed $700 million of 5.200% notes due 2036 on April 1 and $500 million of 4.625% notes due 2029 on May 20, and retired $1,035 million of 3.625% exchangeable notes at maturity on June 15.
The result is that total debt was almost unchanged over six months, at $15,991 million versus $15,847 million, while common equity rose to $11,665 million from $10,837 million. Debt as a share of total capitalisation fell to 57.8% from 59.4%. Liquidity improved to $1,363 million from $1,174 million.
That is a genuinely better balance sheet than at year end — but it was bought with a one-time note repayment and equity issuance. The company states plainly that it expects capital investment to exceed operating cash flow through 2030 and plans to fund the difference with long-term debt and equity. With the HOS proceeds now spent, the 2027 version of this table will be debt and shares, and the remaining forward shares alone carry about 2.4% dilution.
Takeaway: The regulated utility is performing well — 14.9% segment earnings growth on flat O&M — but consolidated EPS growth of 8.8% was assembled from a favourable weather comparison worth roughly $0.04, and it absorbed the permanent loss of the Homeowner Services interest income. The binding constraint is not operations, it is the authorized return: American Water keeps asking regulators for 10.50–10.75% and keeps being awarded 9.55–9.80%, including on its largest 2026 decision. A capital plan that grows rate base faster than it earns on it still grows earnings, but it does so by issuing the debt and equity that fund the gap.
Two items that look like earnings and are not
PFAS settlements. The company has now received $234 million net of legal fees from manufacturers of per- and polyfluoroalkyl substances — "forever chemicals" that utilities must filter out of drinking water. This is largely not shareholder money. American Water is seeking approval from each state commission to pass the proceeds to customers; of 11 subsidiaries that filed, seven approvals have been granted, two denied and two are pending. At June 30 the company held $131 million in escrow and had booked a $158 million regulatory liability — that is, an obligation to return the money through rates. More settlement payments may arrive in 2026.
The CAMT reversal. IRS Notice 2026-7, issued February 18, 2026, allowed tax repair deductions in the Corporate Alternative Minimum Tax calculation, and American Water no longer expects to be in a CAMT liability position. It reversed the $200 million CAMT credit carryforward held at December 31, 2025 and recognised $50 million of additional uncertain tax liabilities. The visible effect is in cash flow: operating cash flow rose $275 million year over year largely because the prior-year period included a CAMT extension payment. This is a timing benefit, not earnings.
The Essential Utilities merger
The October 2025 agreement to acquire Essential Utilities in an all-stock deal — 0.305 American Water shares per Essential share — is progressing through state approvals. Kentucky, Ohio and Virginia have approved; a settlement in principle has been reached in Texas. Management expects closing by the end of the first quarter of 2027. Transaction costs booked to O&M were $4 million in the quarter and $9 million for the half, with $22 million incurred in total since 2025; these are excluded from adjusted EPS.
Two risks are structural rather than procedural. The exchange ratio is fixed and does not adjust for either company's share price. And the deal can only close if the remaining commission approvals come without conditions severe enough to constitute a "Burdensome Effect" — which is precisely where water utility mergers have historically been reshaped, since regulators frequently extract rate concessions as the price of consent.
Guidance and outlook
Management affirmed 2026 adjusted EPS guidance of $6.02 to $6.12, and affirmed the long-term targets of 7–9% annual growth in both EPS and the dividend. The board declared a quarterly dividend of $0.8950 per share on July 29 — $3.58 annualised, or about 59% of the guidance midpoint, and 8.0% above the first-half 2025 payout in dollar terms ($336 million vs $311 million).
The half-year math implies a second half that has to accelerate. Adjusted EPS of $2.62 is 43% of the $6.07 midpoint, leaving roughly $3.45 to be earned in the second half. For context, 2025 full-year GAAP EPS was $5.69 against $2.53 in the first half, so the second half carried $3.16. Reaching the 2026 midpoint requires something like 8–10% second-half growth, against the 3.2% GAAP growth delivered in the first half. (This compares an adjusted target to GAAP history, so treat it as approximate.)
The acceleration is identifiable rather than hypothetical, which is the important point:
Pennsylvania's $75 million annualised increase takes effect August 13 — roughly four and a half months of the second half, worth approximately $29 million of revenue, plus $24 million annualised of Pennsylvania infrastructure surcharges.
Infrastructure surcharges stepped in through the year: Missouri $18 million from August 15, Pennsylvania $9 million from July 1, New Jersey $25 million from May 30.
The Nexus systems contribute a full six months rather than the single month in Q2.
The third quarter is seasonally the strongest for a water utility, when summer demand peaks.
The realistic risk to guidance is therefore weather, not execution: a cool, wet third quarter would remove the volume contribution that made the second quarter look good, and the company's adjusted measure excludes weather from guidance but not from the cash.
Looking past 2026, the 7–9% long-term target rests on rate base growing faster than the allowed return is being compressed. Right now both trends are running — net plant is up 4.4% in six months, and authorized ROEs keep landing about 100 basis points below what the company requests. The pending Missouri case ($179 million requested at 10.50%, new rates targeted for June 2027) and New Jersey case ($145 million at 10.75%) are the two that matter most for whether the target holds; together they represent two-thirds of the pending ask. If those settle near the 9.55–9.80% band that Pennsylvania, West Virginia and Virginia have set this year, American Water will still hit its earnings growth range, but it will do so on a larger share count and a larger debt balance than the plan assumed.