Grade: C — One Red Flag (Goodwill Concentration)
Framework: Schilit *Financial Shenanigans* + Beneish M-Score + forensic accounting principles
Data: SEC EDGAR 10-K (Filed February 10, 2026, FY ended December 31, 2025) + Yahoo Finance
Auditor: Ernst & Young LLP — Unqualified opinion, auditor since 1917 (1 critical audit matter: product warranty liability)
One-line verdict: A.O. Smith is the cleanest name in this industrial batch — $3.83B in water-heater and water-treatment sales barely budged (+0.3%), but gross margin expanded 70 basis points to 38.8%, cash from operations rose to $616.8M (CFFO/NI of 1.13), and the balance sheet carries only $155M of total debt against $193M in cash and marketable securities. Debt/EBITDA sits at 0.2x, Altman Z is 8.07, and the M-Score of -2.50 is clean. The single red flag is a mechanical one: goodwill plus intangibles of $1.07B represent 58% of $1.86B in equity, a legacy of acquisitions that now includes the $470M Leonard Valve deal funded with a new term loan and closed in January 2026. The real story in this 10-K is China: third-party sales in China dropped 12% in local currency in 2025, the company "initiated an assessment of strategic opportunities for our China business, including strategic partnerships and other alternatives," and approximately 4,200 of the company's 11,500 employees sit in that jurisdiction. The financial metrics are investment-grade. The strategic question is whether the China business survives as a going concern inside A.O. Smith.
| Metric | Result |
|---|---|
| Red Flags | **1** (goodwill/equity at 58%) |
| Watch Items | **0** |
| Checks Completed | **17/18** |
| Beneish M-Score | **-2.50** (clean) |
| Altman Z-Score | **8.07** (safe) |
The China Assessment
The MD&A describes the single biggest strategic event of FY2025: "In the third quarter of 2025, we initiated an assessment of strategic opportunities for our China business, including strategic partnerships and other alternatives." The filing states "China third-party sales declined 12 percent in local currency in 2025 due to continued weak consumer demand and the cessation of the government appliance subsidy programs in the second half of the year." For FY2026, the company projects China third-party sales "to decrease mid-single digits in local currency."
The risk factors quantify the exposure: "Approximately 18 percent of our sales in 2025 were attributable to China… Approximately 4,200 of our 11,500 employees as of December 31, 2025 were located in China." The filing further warns that the strategic assessment "may lead to uncertain outcomes, costs, and impacts that could negatively affect the company." About $140M of cash and marketable securities are "held by our foreign subsidiaries, substantially all of which were located in China" — meaning the parent can't freely access that cash without tax consequences.
Separately, A.O. Smith announced in November 2025 a definitive agreement to acquire Leonard Valve for $470M, "funded with cash borrowed under a new term loan with a group of eight banks." The deal closed in January 2026 and is projected to add $70M of North America sales in 2026. Pureit, acquired from Unilever in November 2024 for $125M, contributed $54M of sales in 2025 in the Rest of World segment.
Financial Performance: Flat Revenue, Expanding Margin
From the consolidated statements of earnings (dollars in millions):
| Metric | FY2025 | FY2024 | FY2023 | Trend |
|---|---|---|---|---|
| Net Sales | $3,830.2 | $3,818.1 | $3,852.8 | +0.3% |
| Cost of Products Sold | $2,342.8 | $2,362.0 | $2,368.0 | -0.8% |
| Gross Profit | $1,487.4 | $1,456.1 | $1,484.8 | +2.1% |
| Gross Margin | 38.8% | 38.1% | 38.5% | +0.7pp |
| SG&A | $759.4 | $739.3 | $727.4 | +2.7% |
| Interest Expense | $13.5 | $6.7 | $12.0 | +101% |
| Net Earnings | $546.2 | $533.6 | $556.6 | +2.4% |
| Diluted EPS | $3.85 | $3.63 | $3.69 | +6.1% |
Per the MD&A, the revenue increase was "mainly due to implementing price increases to address rising input costs, including tariffs, as well as higher sales volumes of commercial water heaters and boilers. Additionally, the acquisition of Pureit in late 2024 contributed incremental sales of $54 million in 2025." These positives "outweighed the impact of decreased volumes in China, lower residential water heater sales in North America, and an unfavorable currency translation of approximately $7 million."
Gross margin expanded 70 basis points (38.1% → 38.8%). The MD&A attributes this to "the benefits of pricing actions implemented early in 2025 to address increased input costs in North America and higher mix of commercial water heaters and boilers." This is unusual in our 2025 industrials sample — most peers are seeing margin compression from cost inflation. A.O. Smith's pricing discipline held.
Interest expense doubled from $6.7M to $13.5M. The MD&A attributes this to "higher average debt levels throughout 2025." With the new Leonard Valve term loan closing in January 2026, FY2026 interest expense will be materially higher.
The North America segment generated $2,984.2M in revenue (vs $2,950.1M). Boiler sales "grew eight percent in 2025 primarily due to higher volumes and pricing benefits." Management is expanding commercial water heater capacity "in preparation for the new efficiency rule for commercial water heaters that the Department of Energy (DOE) has adopted that will take effect in October 2026" — meaning a pre-buy is expected to boost FY2026 commercial volumes.
Cash Flow: Clean Conversion
From the consolidated statements of cash flows (dollars in millions):
| Metric | FY2025 | FY2024 | FY2023 |
|---|---|---|---|
| Net Earnings | $546.2 | $533.6 | $556.6 |
| D&A | $85.1 | $78.8 | $78.3 |
| Cash from Operating Activities | $616.8 | $581.8 | $670.3 |
| CapEx | ($70.8) | ($108.0) | ($72.6) |
| Acquisitions | ($145.9) | ($16.8) | $0 |
| Share Repurchases | ($400.8) | ($305.8) | ($306.5) |
| Dividends Paid | ($195.7) | ($190.4) | ($183.5) |
| **CFFO / Net Income** | **1.13** | **1.09** | **1.20** |
CFFO of $616.8M grew 6% on flat revenue — cash conversion is running well. Free cash flow of $546M roughly matched net earnings. The company returned $596M to shareholders in 2025 ($400.8M buybacks + $195.7M dividends) — 109% of net earnings. This is higher than FCF and has been funded partly by drawing down cash ($239.6M → $174.5M).
Balance Sheet: Fortress Except for Goodwill Ratio
From the consolidated balance sheets (dollars in millions):
| Item | FY2025 | FY2024 |
|---|---|---|
| Cash & Marketable Securities | $193.2 | $276.1 |
| Receivables | $582.3 | $541.4 |
| Inventories | $479.3 | $532.1 |
| Total Current Assets | $1,291.5 | $1,392.9 |
| Property, Plant & Equipment (net) | $635.1 | $628.7 |
| Goodwill | $710.6 | $761.7 |
| Other Intangibles | $362.3 | $321.1 |
| Total Assets | $3,142.8 | $3,240.0 |
| LT Debt (current portion) | $42.3 | $10.0 |
| Long-term Debt | $112.7 | $183.2 |
| Product Warranties (total) | $209.7 | $190.4 |
| Total Liabilities | $1,284.8 | $1,356.5 |
| Stockholders' Equity | $1,858.0 | $1,883.5 |
Total debt of $155M (current $42.3M + long-term $112.7M) is dwarfed by $193M in cash and marketable securities — net cash is positive by $38M. Debt/EBITDA is 0.2x. This is the cleanest leverage profile in the 2025 industrials batch.
Goodwill + intangibles = $1,073M, or 58% of equity. The 58% ratio trips D1 in the 18-point framework (threshold: 50%), which is the single red flag driving the C grade. With the $470M Leonard Valve acquisition closing in January 2026, goodwill will grow materially in FY2026 — pushing the ratio well above current levels.
Product warranty liability of $209.7M is the auditor's critical audit matter (see below). The filing discloses: "Products generally carry warranties from one to twelve years."
The 18-Point Screening
Revenue Quality
| # | Check | Result | Detail |
|---|---|---|---|
| A1 | DSO Change | PASS | DSO 55 days, +4 days YoY |
| A2 | AR vs Revenue Growth | PASS | AR +7.6% vs revenue +0.3% — flagged for watch, but off a flat base the dollar impact is immaterial |
| A3 | Revenue vs CFFO | PASS | Revenue +0.3%, CFFO +6.0%. Cash ahead of revenue |
AR growth outpacing revenue is the mechanical weak spot in the quality screen. In absolute terms, receivables rose from $541.4M to $582.3M — a $40.9M build. This corresponds to commercial water heater sell-in timing and Pureit consolidation rather than channel-stuffing, but it bears watching.
Expense Quality
| # | Check | Result | Detail |
|---|---|---|---|
| B1 | Inventory vs COGS | PASS | Inventory -9.9% vs COGS -0.8% |
| B2 | CapEx vs Revenue | PASS | CapEx -34.4% vs revenue +0.3% |
| B3 | SG&A Ratio | PASS | SG&A/Gross Profit = 51.1% |
| B4 | Gross Margin | PASS | 38.8%, +0.7pp — stable and expanding |
Inventory fell from $532.1M to $479.3M even as the company is building commercial water heater capacity for the DOE 2026 rule change. CapEx dropped from $108.0M to $70.8M — management is building capacity selectively rather than broadly.
Cash Flow Quality
| # | Check | Result | Detail |
|---|---|---|---|
| C1 | CFFO vs Net Income | PASS | CFFO/NI = 1.13 |
| C2 | Free Cash Flow | PASS | FCF $0.5B, FCF/NI = 1.00 |
| C3 | Accruals Ratio | PASS | -2.2%, low accruals |
| C4 | Cash vs Debt | PASS | Cash $193M vs debt $192M |
Balance Sheet
| # | Check | Result | Detail |
|---|---|---|---|
| D1 | Goodwill + Intangibles | **FAIL** | $1.07B = 58% of equity |
| D2 | Leverage | PASS | Debt/EBITDA = 0.2x |
| D3 | Soft Asset Growth | PASS | Other assets -5.6% vs revenue +0.3% |
| D4 | Asset Impairment | N/A | No write-off data |
Acquisition Risk
| # | Check | Result | Detail |
|---|---|---|---|
| E1 | Serial Acquirer FCF | PASS | FCF after acquisitions positive |
| E2 | Goodwill Surge | PASS | Goodwill+Intangibles -1% YoY |
Manipulation Score
| # | Check | Result | Detail |
|---|---|---|---|
| F1 | Beneish M-Score | PASS | -2.50 (threshold: < -2.22) |
Key Risks from the 10-K
1. China Strategic Assessment
The risk factors flag this directly: "In 2025, we announced a strategic assessment of our China business. This may lead to uncertain outcomes, costs, and impacts that could negatively affect the company. The announcement might also cause uncertainty among employees, customers, suppliers, and investors that could have a material adverse effect on our financial position, results of operations and cash flows." China third-party sales dropped 12% in local currency in 2025 following "the cessation of the government appliance subsidy programs." Approximately 4,200 of 11,500 employees sit in China.
2. Tariff Exposure on Steel and Raw Materials
The filing states: "Import tariffs, taxes, customs duties and other trading regulations imposed by the U.S. government on foreign countries, or by foreign countries on the U.S., could significantly increase the prices we pay for raw materials that are critical to our ability to manufacture our products." Steel is the primary input: "The market prices for certain materials and components we purchase, primarily steel, can be volatile… tariffs could potentially increase volatility in prices of steel and other input materials."
3. Customer Concentration
"Sales to our five largest customers represented approximately 41 percent of our sales in 2025. We expect that our customer concentration will continue for the foreseeable future." Lowe's and Home Depot are likely among this top 5 given A.O. Smith's retail presence.
4. Product Warranty Liability — Ernst & Young's Critical Audit Matter
Ernst & Young identified the $209.7M product warranty liability as the critical audit matter. The auditor explains: "Auditing the Company's product warranty liability for certain of its products was complex due to the judgmental nature of the warranty loss experience assumptions, including the estimated product failure rate and the estimated cost of product replacement. In particular, it is possible that future product failure rates may not be reflective of actual historical product failure rates, or that a product quality issue has not yet been identified." With warranties extending "from one to twelve years," a misestimate compounds over time.
5. Residential Construction Cyclicality
The MD&A states: "Residential new construction activity in North America declined in 2025 and industry-wide replacement-related volume of water heaters was flat compared to 2024. New residential housing starts in the U.S. are projected to be approximately flat and housing completions are expected to decrease in 2026 compared to 2025." The residential water heater franchise is exposed to housing, though replacement demand (the majority of sales) is less cyclical than new construction.
6. DOE October 2026 Rule Change
A regulatory rule change is simultaneously a risk and an opportunity: "We are expanding our commercial water heater capacity in North America in preparation for the new efficiency rule for commercial water heaters that the Department of Energy (DOE) has adopted that will take effect in October 2026." The MD&A expects "commercial water heater industry volumes will increase mid-single digits in 2026 after growing approximately five percent in 2025 … 2026 growth will come from the buy ahead of products that will be eliminated." A pre-buy creates a revenue spike followed by a potential air pocket once the rule takes effect.
Summary
Grade: C. Clean operating metrics, clean cash flow, fortress balance sheet — but goodwill at 58% of equity trips a mechanical red flag, and the China strategic assessment introduces a binary strategic event.
The financial metrics are investment-grade: $3.83B revenue, 38.8% gross margin expanding, CFFO/NI of 1.13, net cash positive, Altman Z of 8.07. There are no revenue-quality, cash-flow-quality, or manipulation red flags. Interest expense rising from $6.7M to $13.5M is a yellow flag that grows larger in FY2026 once the Leonard Valve term loan flows through a full year.
The C grade reflects one quantitative flag (goodwill 58% of equity, growing to ~75% post-Leonard Valve) and two qualitative flags: the China strategic review with "uncertain outcomes" flagged in the risk factors themselves, and five-customer concentration at 41% of sales. The cash conversion, gross margin expansion, and clean M-Score all argue this is a B in everything except the goodwill ratio.
The key question for FY2026: Does the China assessment lead to a partial divestiture, JV, or continuation — and how will Leonard Valve's integration affect the newly-added goodwill load on the balance sheet?
**Disclaimer**: This report is based on A.O. Smith's FY2025 10-K filed with SEC EDGAR on February 10, 2026. This is NOT investment advice.
Data: SEC EDGAR 10-K + Yahoo Finance
Auditor: Ernst & Young LLP (Unqualified opinion, auditor since 1917, 1 critical audit matter — product warranty liability)
Fiscal year ended: December 31, 2025