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A. O. Smith Corporation

AOS · Industrials · $8.6B mkt cap · FY2025 filings · Wide moat ·

Wonderful & reasonably priced

Wide moat
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The five investor questions

72

2021–2025 (latest 5 aligned FYs; v3 window cap 5): revenue $3.5B to $3.8B, increasing; diluted EPS 3.02 to 3.85, increasing.

65

Median gross margin 38.7% over 10y, very stable.

100

Median ROIC 28.6%, above the 12% hurdle in 100% of years.

100

Net cash position — no leverage risk.

79

Owner earnings changed +6.2%/yr over up to the ten most recent annual observations.

Price vs. value if growth stopped today

A cautious baseline, not a price target: what the shares may support if normalized owner earnings simply hold steady.

Above value if growth stopped todayBelow value if growth stopped today
45% above value if growth stopped today
$534M
$41.78
$67.68
$60.78
45% above value if growth stopped today

What today’s price assumes: owner earnings growing ~8%/yr over 5 years. The zero-growth estimate assumes owner earnings stay flat (0% growth).

How to read this

We solve for the constant annual change in owner earnings that would make the five-year zero-growth estimate equal today’s price. This keeps the existing model inputs and calculation unchanged; it is an expectations lens, not a forecast.

This zero-growth estimate assumes trailing owner earnings persist — unreliable for declining businesses. The recent FY revenue series does not trigger the three-consecutive-declines flag.

Among the current top-score group, the median current price is 239% above the zero-growth estimate across 48 of the current top 50 companies by Moat Score with both values.

Score records captured Jul 26, 2026.

Exactly which 50 companies?

FTNT, META, MEDP, IBEX, MSFT, GOOGL, LULU, ANF, IDXX, TXRH, FHI, QLYS, FFIV, ADBE, LLY, MANH, VEEV, GRMN, SSD, MNST, DOCS, MCO, CPRT, NTAP, LRCX, NVDA, CORT, SFM, MPTI, ULTA, SN, RMD, ROL, PAYC, IRMD, INTU, DECK, MORN, LGCY, DAL, GWW, ISRG, MPWR, CTAS, LOPE, MRK, CMG, FAST, BKNG, ORLY

Missing a usable price or zero-growth estimate: ANF, BKNG.

Model details under moat-index@3.0.0: zero-growth multiple 11.1×, capped-growth comparison at no more than 18×; 9% discount rate; high-end growth 4% (capped at 4%) using min(5y revenue CAGR, 5y diluted-EPS CAGR), clamped to 0%–4%; maintenance capex uses min(capex, D&A); abstain when D&A is unavailable. This is a disclosed model range, not intrinsic value as fact.

19 years of fundamentals

The business, in plain English

A. O. Smith Corporation booked $3.8B of revenue in FY2025 in the Industrials sector and kept 38.8% of it as gross profit — a solid-margin business by that measure. After every other cost, 14.3% of each revenue dollar reached the bottom line.

Across the filed record, revenue grew from $1.5B (FY2008) to $3.8B (FY2025) — about 5.9% a year compounded over 17 years.

It earned 30.3% on invested capital in the latest filed year, FY2025. Across the full 16-year measurable filed record, median ROIC was 23.7%. Over the v3 recent window (10 measurable filed years), median ROIC was 28.6%. The Returns on Capital filter above scores it 100/100.

The balance sheet carried $155M of total debt in FY2025 against $561M of owner earnings — roughly 0.3 years of owner earnings to retire it all. Balance-Sheet Safety scores it 100/100.

Put together: Returns on Capital is the strongest of the five filters (100/100) and Pricing Power the weakest (65/100), which is how AOS lands at 83/100 — a Wide moat.

This breakdown is generated from the filed numbers and sub-scores above — no outside narrative, no estimates. Where a filing doesn’t disclose an input, the sentence that would need it is omitted instead of guessed.

FY2007–FY2025 · 19 fiscal years, normalized from AOS’s SEC filings

Sales, as filed$3.8B FY2025
$0$2B$4B2007201320192025
Revenue kept after cost of goods38.8% FY2025
0%20%40%2007201320192025
Standard ROIC or separately labeled Operating ROICROIC 30.3% FY2025
0%20%2007201320192025
Cash an owner could take out$561M FY2025
$0$250M$500M2007201320192025

Gaps in a line mean that item isn’t in AOS’s filings for that year. The series is never interpolated or estimated. The Table view lists every filed value, including operating and net margins, total debt, and share count.

Flagship explainer

How A. O. Smith Corporation makes its money

Start with a dollar of revenue and follow what the filing says remains.

revenueBranching filed flows with values and percentages directly labeled. Missing filing concepts are omitted rather than estimated.Revenue$3.8B · 100%Cost of revenue$2.3B · 61%Gross profit$1.5B · 39%Operating income$729M · 19%Income before tax$715M · 19%Income tax$169M · 4%Net income$546M · 14%As of 2025-12-31 · 1 SEC filing sourceBuy Like Buffett · buylikebuffett.com

Honest partial: the filing did not provide a normalized tag for Research and development, Selling, general and administrative; those components are omitted, not plugged.

Table alternative
Filed lineValue% of revenueSource
$3.8B100%
Cost of revenue$2.3B61%
$1.5B39%
$729M19%
Income before tax$715M19%
Income tax$169M4%
$546M14%
Source: · event Dec 31, 2025 · retrieved Jul 26, 2026 · annual-row source set
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Flagship explainer

What A. O. Smith Corporation owns — and owes

A. O. Smith Corporation's filing tags don't support a full breakdown — here's what is filed:

Table alternative
Filed lineValue% of assetsSource
Total assets$3.1B100%
Cash and equivalents$175M6%
$155M5%
Stockholders’ equity$1.9B59%
Source: · event Dec 31, 2025 · retrieved Jul 26, 2026 · annual-row source set

Flagship explainer

What drives A. O. Smith Corporation’s return on equity?

ROE is five filed business factors multiplied together.

DuPont return on equity factor treeReturn on equity branches into tax burden, interest burden, operating margin, asset turnover, and the equity multiplier.Return on equity29%Tax burden76%net income ÷ pretax incomeInterest burden98%pretax ÷ operating incomeOperating margin19%operating income ÷ revenueAsset turnover1.20×revenue ÷ average assetsEquity multiplier1.71×average assets ÷ average equityAs of 2025-12-31 · 1 SEC filing sourceBuy Like Buffett · buylikebuffett.com
DuPont source inputs
InputValueFiscal yearSource
$546MFY2025
Income before tax$715MFY2025
Operating income$729MFY2025
$3.8BFY2025
Ending assets$3.1BFY2025
Beginning assets$3.2BFY2024
$1.9BFY2025
$1.9BFY2024
Source:
  • SEC filingFiling detailsAccession 0000091142-26-000008
· event Dec 31, 2025 · retrieved Jul 26, 2026 · annual-row source set
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Flagship explainer

Where A. O. Smith Corporation's cash went

A. O. Smith Corporation’s filing does not supply enough provenance-matched cash-flow lines for a truthful flow chart — here’s what is filed:

Table alternative
Filed lineValue% of cash from operationsSource
Cash from operations$617M100%
Depreciation and amortization$85.1M14%
Source: · event Dec 31, 2025 · retrieved Jul 26, 2026 · annual-row source set

Curated 19-manager tier

Who reported holding A. O. Smith Corporation

Delayed public 13F reports for 2026-Q1—not live positions, trades, or recommendations.

0 holding0 exited19 not holding19/19 resolved

Named manager positions and quarter-over-quarter changes
ManagerReported positionQuarter-over-quarterFiling accession
Abrams CapitalNo position reportedNo position reported
Akre CapitalNo position reportedNo position reported
Baupost GroupNo position reportedNo position reported
Berkshire HathawayNo position reportedNo position reported
Brave Warrior AdvisorsNo position reportedNo position reported
Dodge & CoxNo position reportedNo position reported
First EagleNo position reportedNo position reported
FundsmithNo position reportedNo position reported
Gardner Russo & QuinnNo position reportedNo position reported
Gates Foundation TrustNo position reportedNo position reported
Mairs & PowerNo position reportedNo position reported
Markel / Markel-GaynerNo position reportedNo position reported
Oakmark / Harris AssociatesNo position reportedNo position reported
Pershing SquareNo position reportedNo position reported
Polen CapitalNo position reportedNo position reported
Sequoia / Ruane CunniffNo position reportedNo position reported
Southeastern Asset ManagementNo position reportedNo position reported
Tweedy, BrowneNo position reportedNo position reported
Yacktman Asset ManagementNo position reportedNo position reported

Position size uses shares and filed value from each manager’s 13F. Portfolio weight uses the eligible long-share filing denominator. Changes compare only with the immediately preceding calendar quarter.

Source:
38 SEC filings
  1. 13F-HR · Q4 2025Filing detailsAccession 0000813917-26-000022 · filed Feb 17, 2026
  2. 13F-HR · Q1 2026Filing detailsAccession 0000813917-26-000038 · filed May 15, 2026
  3. 13F-HR · Q4 2025Filing detailsAccession 0000860643-26-000001 · filed Feb 12, 2026
  4. 13F-HR · Q1 2026Filing detailsAccession 0000860643-26-000003 · filed May 13, 2026
  5. 13F-HR · Q4 2025Filing detailsAccession 0000905567-26-000001 · filed Feb 3, 2026
  6. 13F-HR · Q1 2026Filing detailsAccession 0000905567-26-000002 · filed May 1, 2026
  7. 13F-HR · Q4 2025Filing detailsAccession 0000919574-26-000775 · filed Feb 13, 2026
  8. 13F-HR · Q1 2026Filing detailsAccession 0000919574-26-003132 · filed May 15, 2026
  9. 13F-HR · Q4 2025Filing detailsAccession 0001061768-26-000005 · filed Feb 13, 2026
  10. 13F-HR · Q1 2026Filing detailsAccession 0001061768-26-000007 · filed May 14, 2026
  11. 13F-HR · Q4 2025Filing detailsAccession 0001096343-26-000011 · filed Feb 6, 2026
  12. 13F-HR · Q1 2026Filing detailsAccession 0001096343-26-000044 · filed May 1, 2026
  13. 13F-HR · Q4 2025Filing detailsAccession 0001104659-26-016458 · filed Feb 17, 2026
  14. 13F-HR · Q1 2026Filing detailsAccession 0001104659-26-062592 · filed May 15, 2026
  15. 13F-HR · Q4 2025Filing detailsAccession 0001112520-26-000008 · filed Feb 13, 2026
  16. 13F-HR · Q1 2026Filing detailsAccession 0001112520-26-000009 · filed May 14, 2026
  17. 13F-HR · Q4 2025Filing detailsAccession 0001172661-26-000654 · filed Feb 12, 2026
  18. 13F-HR · Q4 2025Filing detailsAccession 0001172661-26-000791 · filed Feb 13, 2026
  19. 13F-HR · Q4 2025Filing detailsAccession 0001172661-26-001057 · filed Feb 17, 2026
  20. 13F-HR · Q4 2025Filing detailsAccession 0001172661-26-001068 · filed Feb 17, 2026
  21. 13F-HR · Q4 2025Filing detailsAccession 0001172661-26-001091 · filed Feb 17, 2026
  22. 13F-HR · Q1 2026Filing detailsAccession 0001172661-26-001819 · filed May 14, 2026
  23. 13F-HR · Q1 2026Filing detailsAccession 0001172661-26-001911 · filed May 14, 2026
  24. 13F-HR · Q1 2026Filing detailsAccession 0001172661-26-001966 · filed May 14, 2026
  25. 13F-HR · Q1 2026Filing detailsAccession 0001172661-26-002294 · filed May 15, 2026
  26. 13F-HR · Q1 2026Filing detailsAccession 0001172661-26-002336 · filed May 15, 2026
  27. 13F-HR · Q4 2025Filing detailsAccession 0001193125-26-033986 · filed Feb 3, 2026
  28. 13F-HR · Q4 2025Filing detailsAccession 0001193125-26-050636 · filed Feb 13, 2026
  29. 13F-HR · Q4 2025Filing detailsAccession 0001193125-26-054580 · filed Feb 17, 2026
  30. 13F-HR · Q1 2026Filing detailsAccession 0001193125-26-208439 · filed May 6, 2026
  31. 13F-HR · Q1 2026Filing detailsAccession 0001193125-26-223352 · filed May 14, 2026
  32. 13F-HR · Q1 2026Filing detailsAccession 0001193125-26-226661 · filed May 15, 2026
  33. 13F-HR · Q4 2025Filing detailsAccession 0001325447-26-000004 · filed Feb 4, 2026
  34. 13F-HR/A · Q1 2026 · Amendment RESTATEMENTFiling detailsAccession 0001325447-26-000018 · filed May 14, 2026
  35. 13F-HR · Q4 2025Filing detailsAccession 0001398344-26-003084 · filed Feb 13, 2026
  36. 13F-HR · Q1 2026Filing detailsAccession 0001398344-26-009296 · filed May 15, 2026
  37. 13F-HR · Q4 2025Filing detailsAccession 0001569205-26-000002 · filed Feb 17, 2026
  38. 13F-HR · Q1 2026Filing detailsAccession 0001569205-26-000005 · filed May 15, 2026
· event Mar 31, 2026 · retrieved Jul 26, 2026

Flagship explainer

What A. O. Smith Corporation insiders reported

Records still being gathered — partial as of retrieval Aug 11, 2026.

Partial coverage: the incomplete Form 4 walk cannot establish no activity, an activity date, or zero counts.

Moat Score history

16 logged readings since Jul 17, 2026 · append-only, never rewritten

Moat Score over timeLast scored reading of each day, on the 0–100 scale83.1 / 100
0406080100WideNarrowShallowNo moatJul 17, 2026Jul 26, 2026

Breaks in the line mark methodology or normalizer upgrades — readings across versions aren’t compared, so a level shift there isn’t a change in the business.

Tier changesSame-methodology and same-normalizer crossings of the Wide / Narrow / Shallow bars

  1. Normalizer upgraded unstamped (version unknown)moat-xbrl-normalizer@1.1.0 — readings across versions aren’t comparedJul 26, 2026
  2. Methodology upgraded moat-index@2.0.0moat-index@3.0.0 — readings across versions aren’t comparedJul 23, 2026
  3. Methodology upgraded moat-index@1.2.0moat-index@2.0.0 — readings across versions aren’t comparedJul 20, 2026

Scores are logged append-only and never overwritten — this record cannot be reconstructed retroactively, which is exactly why it’s worth keeping.

Insider activity

Form 4 reports mix P/S market or private transactions with compensation-plan mechanics. Activity casually described as “insider selling” can include compensation mechanics; awards, tax withholding, and option exercises are shown by their exact filed class here, never collapsed into “Bought” or “Sold.”

These are disclosed filing facts and arithmetic aggregates, not a signal or verdict.

This machine-readable surface covers SEC ownership filings from 2003; it does not represent earlier paper-era records.

Records still being gathered — partial as of retrieval Aug 11, 2026.

Trailing-12-month totals and the 90-day cluster result are withheld because this issuer walk is incomplete.

No reported Form 4 rows were captured for AOS; the incomplete walk cannot establish zero activity, zero counts, or a negative cluster result.

A filing source-event date will appear when a Form 4 row is captured.

Retrieved .

Track record

How A. O. Smith Corporation’s moat rated in each of the years we can reconstruct from its filings — scored only on what was knowable at the time — and what its price and returns did afterward. The score never saw a price; the two are joined only in hindsight, for education, not as a signal.

Point-in-time scores 2011–2025, one methodology version · reconstructed from filings on file each Dec 31 — never with hindsight

Point-in-time Moat Score (dot colored by tier)Indexed price (total-return (dividends reinvested))Rated Wide-moat that year

How to read this: each dot is what the engine would have scored AOS on that December 31; the line below is its total-return price path (dividends reinvested) in the years since.

0406080100WideNarrowShallowNo moatPoint-in-time Moat Score1002005001,000Indexed price · log scale (2012 = 100)201120142017202020232026

Two tracks, one timeline: the score has its own 0–100 scale (top), the price its own 100-based scale (bottom) — never a shared axis. The price path is a total-return (dividends reinvested) index built from the same data the forward returns use; gaps in the score line are years with no reconstructed rating (see the table for why). The Table view carries every value.

What followed, in the years it rated Wide

In the 5 years AOS rated Wide-moat (2019, 2020, 2022, 2024 and 2025), the median forward total return that followed — measured only after each year’s filings were public — was:

  • 1 year 28% vs the S&P 500’s 20% (price basis) · median over 4 years
  • 3 years 30% vs the S&P 500’s 28% (price basis) · median over 3 years
  • 5 years 46% vs the S&P 500’s 83% (price basis) · median over 2 years

These are medians computed from the data, not a claim about any one year. The company figures are total returns (dividends reinvested); the S&P 500 is the price-only ^GSPC index, which excludes dividends and so understates the index — the gap flatters the company. A quality rating is not a return forecast, and past returns don’t predict future ones. Educational only, not investment advice.

Industrials context

#10 of 428 scored Industrials companies, ranked by Moat Score.

Nearest peers by Moat Score

  1. #8LII LENNOX INTERNATIONAL INC84.4Wide moat
  2. #9DCI DONALDSON COMPANY, INC.83.9Wide moat
  3. #11WTS WATTS WATER TECHNOLOGIES INC83.1Wide moat
  4. #12ITT ITT INC.82.6Wide moat

Compare AOS with its nearest peers →All Industrials companies on the Index →

Common questions about AOS

Does A. O. Smith Corporation have an economic moat?
Based on its FY2025 SEC filings, the Moat Index scores A. O. Smith Corporation (AOS) 83.1 out of 100 — a Wide moat. The five questions behind that score begin at 20% each; if exactly one genuinely lacks data, the other four weights are renormalized and disclosed. revenue and EPS trend 72, pricing power 65, returns on capital 100, balance-sheet safety 100, capital allocation 79.
Is AOS trading below the conservative owner-earnings estimate?
The value if growth stopped today — a zero-growth baseline — is $41.78 per share. It capitalizes normalized owner earnings at a 9% rate and assumes 0% growth. Versus a recent price of $60.78, that is 45% above value if growth stopped today. The model also publishes a capped-growth comparison, but the zero-growth estimate is the cautious baseline. It assumes trailing owner earnings persist and is unreliable for declining businesses. This is an educational estimate from primary SEC filings, not intrinsic value as a fact or investment advice.
How has AOS's Moat Score changed over time?
The record logs 16 readings since Jul 17, 2026; the latest reads 83.1 out of 100 (wide moat). No tier changes on record yet. (Methodology or normalizer upgrades on Jul 20, 2026, Jul 23, 2026, Jul 26, 2026 re-based the score; readings across versions aren't compared.) The history is append-only — readings are only ever added, never rewritten.

Scored from primary SEC filings via the public methodology. Educational only — not a recommendation to buy or sell AOS. See the disclaimer.