American Water Works Company, Inc. (AWK) stock intrinsic value fair value estimate & owner earnings analysis

American Water Works is the largest publicly traded U.S. water and wastewater utility, with regulated operations in roughly 14 states (largest in New Jersey, Pennsylvania, California, Illinois, Missouri and Indiana) and long-term contracts to run water systems on military bases. Regulators set the rates it can charge so that it earns an allowed return (recently about 9.7% on equity, e.g. Kentucky) on the pipes, plants and treatment systems it owns. The business is very predictable, but it is also extremely capital hungry: it spent $3.1 billion on construction in 2025 against $2.1 billion of operating cash flow, and plans $19-20 billion over the next five years and $46-48 billion over ten. How we measured earnings. We start from operating cash flow (which is already after interest), remove short-term swings in receivables, payables and taxes, and subtract stock compensation as a real cost. For capital spending we made a utility-specific judgement: only the amount needed to replace what wears out (annual depreciation of $894 million plus $175 million of cost to retire old pipe in 2025, about $1.07 billion) is treated as the cost of standing still. The rest of the spending is rate-base growth, financed by new debt, retained earnings and some new shares, and it earns the allowed return. Treating all $3.1 billion as maintenance would make earnings negative every year and would ignore that most of it is investment that regulators let the company earn a return on. On this basis owner earnings were about $5.17 per share in 2025 ($5.28 in 2024, $4.71 in 2023; roughly $3.5 to $4.3 from 2016 to 2020). We anchored on the 2023-2025 median of $5.17, skipping 2021-2022, which were distorted by the sale of the Pivotal Home Solutions business and the large cash tax on its gain. Base case. Owner earnings grew in 2023 and 2024 but slipped about 2% in 2025, as higher interest costs and receivables offset $250 million of new annual rate increases. We start 2026 at +2.5% growth, which is above that -2% because rate increases already approved and only partly in 2025 numbers (Missouri $63 million from May 2025, Iowa $13 million from August 2025, Kentucky $18 million from December 16, 2025) carry a full year into 2026. From 2027 to 2030 we credit 3.2% a year, below the 4.2% per-share growth of the past decade and the 3.2% of the last seven years, then 2.5% through 2035, because the company has raised rates and invested steadily through every economic cycle and has a disclosed 10-year capital plan. About 63% of owner earnings is paid as dividends ($633 million in 2025); the rest funds growth. After 2035 we assume owner earnings stay flat at about $6 per share and are fully paid out: the assets still have to be replaced, but nothing named and evidenced supports further expansion, and part of today's cash flow (about $135 million a year of deferred taxes from accelerated depreciation) exists only while spending outpaces depreciation. That gives roughly $84 per share. What we left out of the base case: approval of the pending rate requests in New Jersey ($146 million), Pennsylvania ($169 million) and Illinois ($119 million), which ask for 10.75%-10.95% returns above anything recently granted; growth from acquisitions (small); and any benefit from the proposed all-stock merger with Essential Utilities (0.305 AWK shares per Essential share, expected to close by the first quarter of 2027 subject to regulatory approvals). We value American Water on its own; the merger could change per-share value in either direction and is not reflected. Bear case (about $66). Regulatory lag persists as in 2025, so owner earnings slip about 2% a year through 2028 while pending rate cases are cut back, capital spending is held to maintenance and the deferred-tax benefit fades. The cost of removing retired pipe has more than doubled since 2017 ($76 million to $175 million), and we assume replacement spending runs about 10% above depreciation plus removal. Earnings settle near $3.60 per share with no growth thereafter. Compliance with the 2024 lead pipe rules, about $4.1 billion over five years, is a disclosed cost pressure. Bull case (about $97). The company keeps growing owner earnings at 4.5% a year for five years and 4.2% for five more (its ten-year record), then 2% through 2040, as its capital plan is approved in rates on the terms requested. No windfall beyond the company's own demonstrated pace is assumed. What would make this wrong. Our result is sensitive to the maintenance-capital judgement: if true replacement costs are much higher than depreciation plus removal, earnings are lower than shown. Leverage is rising as capital spending outruns cash flow, so a period of higher interest rates and slow rate approvals hurts most. Second, the growth we credit depends on regulators continuing to approve rates; a change in allowed returns would lower all three cases. We could not reconcile pension and deferred-tax items beyond the cash-flow statement, and the Essential merger terms were taken from the annual report only (no 2026 quarterly filings were reviewed).