ARMSTRONG WORLD INDUSTRIES INC

AWIdata completeness 100%17 fiscal years on file

Data notes: no data for concept 'investmentsAtFairValue'; no data for concept 'netInvestmentIncome'

The thesis, from the filings

ARMSTRONG WORLD INDUSTRIES INC earns about 23% on invested capital, far above its ~9% cost of capital, and has bought back 9% of its shares over 5 years — the marks of a durable business run for its owners. The estimate methods put fair value between $52.7 and $233.29 a share.Whether it’s worth owning at today’s price is the last question — and yours to answer, below.

i. The business — what you’d actually own
FigureFY 2021FY 2022FY 2023FY 2024FY 2025
Revenue$1.11B1$1.23B2$1.3B3$1.45B3$1.62B3
Net income$183.2M4$202.9M5$223.8M6$264.9M6$308.7M6
Operating cash flow$187.2M7$182.4M8$233.5M9$266.8M9$355.5M9
Capital expenditure$79.8M10$74.8M11$83.8M12$82.8M12$109.4M12
Free cash flow (derived)$107.4M7$107.6M8$149.7M9$184M9$246.1M9
Total debt$631.4M13$651.1M14$586.8M15$525.1M16$406.7M16
Cash & equivalents$98.1M17$106M18$70.8M19$79.3M20$112.7M20
Diluted shares47.9M46.4M44.8M44.0M43.6M

Superscripts are receipts. Each links to the SEC filing the number came from (full list at the bottom).

ii. Your slice — ownership made literal
If you owned
shares
Net assets behind them
$206.58
your share of equity
Profit it earned you last year
$70.8
Free cash flow it threw off
$56.44
Debt you’d be carrying
$93.28

10 shares is a claim on $206.58 of net worth that earned you $70.8 and generated $56.44 of cash last year, against $93.28 of debt.

iii. Is this a good business?
Moat signal · return on invested capital
23% avg · 5y
FY21 19%FY22 20%FY23 23%FY24 25%FY25 28%

It earned about 23% on invested capital, year after year, against a ~9% cost of capital — the footprint of real pricing power. Competition usually drags returns like this back down; here it hasn't.

seeing a moat in the numbers →
Management signal · capital allocation
−9% shares · 5y

Share count is down 9% over 5 years — management has been buying back stock, quietly handing owners a bigger slice. Total debt has fallen 36% — deleveraging.

reading capital allocation →

Signals, not verdicts — read from the filings above. Numbers don’t prove a moat; they show its footprint. You decide.

iv. What it’s worth — engine v0.5.0

The 3 estimate methods that apply put fair value between $52.7 and $233.29 a share. They rest on different assumptions, so where they diverge is the story; the Graham Number is a stricter floor, not a target.

DCF · Growth Exit 10Y
$233.29
assumptions (10)
  • riskFreeRate4.7%
  • equityRiskPremium5.0%
  • beta100.0%
  • equityWeight85.0%
  • costOfDebtSpread1.5%
  • taxRate21.0%
  • terminalGrowth2.5%
  • projectionYears10
  • fcfGrowth19.6%
  • fcfBase$184M
DCF · Growth Exit 5Y
$126.72
assumptions (10)
  • riskFreeRate4.7%
  • equityRiskPremium5.0%
  • beta100.0%
  • equityWeight85.0%
  • costOfDebtSpread1.5%
  • taxRate21.0%
  • terminalGrowth2.5%
  • projectionYears5
  • fcfGrowth19.6%
  • fcfBase$184M
Earnings Power Value
$52.7
assumptions (8)
  • riskFreeRate4.7%
  • equityRiskPremium5.0%
  • beta100.0%
  • equityWeight85.0%
  • costOfDebtSpread1.5%
  • taxRate21.0%
  • normalizedEarnings$223.8M
  • growthAssumed0.0%
Graham Number
$57.82
assumptions (1)
  • grahamMultiplier2250.0%

Different models answer different questions — which to trust when →

v. The price question — last, on purpose
Is today’s price fair?
See live price ↗
Type a price. The ledger answers.
Or set your own belief
FCF growth, next 5 years19.6%
Discount rate (WACC)9.02%
Terminal growth2.5%
At your growth, a share is worth $126.72
The three cases
Bear0.0%$52.76
Base19.6%$126.72
Bull20.0%$128.89

Bear/base/bull growth = 0% / filed history / history + 5pp. Type a price to see the return each case implies.

Default growth 19.6%= this company’s own filed history (median-to-median FCF CAGR, clamped 0–20%). Your adjustments are recorded anonymously. They become the “what do owners actually believe” dataset.

Sources — the receipts
  1. 10-K · period ending 2021-12-31 · accession 0000950170-24-016792 (RevenueFromContractWithCustomerExcludingAssessedTax)
  2. 10-K · period ending 2022-12-31 · accession 0000950170-25-026060 (RevenueFromContractWithCustomerExcludingAssessedTax)
  3. 10-K · period ending 2023-12-31 · accession 0001193125-26-065183 (RevenueFromContractWithCustomerExcludingAssessedTax)
  4. 10-K · period ending 2021-12-31 · accession 0000950170-24-016792 (NetIncomeLoss)
  5. 10-K · period ending 2022-12-31 · accession 0000950170-25-026060 (NetIncomeLoss)
  6. 10-K · period ending 2023-12-31 · accession 0001193125-26-065183 (NetIncomeLoss)
  7. 10-K · period ending 2021-12-31 · accession 0000950170-24-016792 (NetCashProvidedByUsedInOperatingActivities)
  8. 10-K · period ending 2022-12-31 · accession 0000950170-25-026060 (NetCashProvidedByUsedInOperatingActivities)
  9. 10-K · period ending 2023-12-31 · accession 0001193125-26-065183 (NetCashProvidedByUsedInOperatingActivities)
  10. 10-K · period ending 2021-12-31 · accession 0000950170-24-016792 (PaymentsToAcquireProductiveAssets)
  11. 10-K · period ending 2022-12-31 · accession 0000950170-25-026060 (PaymentsToAcquireProductiveAssets)
  12. 10-K · period ending 2023-12-31 · accession 0001193125-26-065183 (PaymentsToAcquireProductiveAssets)
  13. 10-K · period ending 2021-12-31 · accession 0000950170-23-003298 (LongTermDebtNoncurrent)
  14. 10-K · period ending 2022-12-31 · accession 0000950170-24-016792 (LongTermDebtNoncurrent)
  15. 10-K · period ending 2023-12-31 · accession 0000950170-25-026060 (LongTermDebtNoncurrent)
  16. 10-K · period ending 2024-12-31 · accession 0001193125-26-065183 (LongTermDebtNoncurrent)
  17. 10-K · period ending 2021-12-31 · accession 0000950170-23-003298 (CashAndCashEquivalentsAtCarryingValue)
  18. 10-K · period ending 2022-12-31 · accession 0000950170-24-016792 (CashAndCashEquivalentsAtCarryingValue)
  19. 10-K · period ending 2023-12-31 · accession 0000950170-25-026060 (CashAndCashEquivalentsAtCarryingValue)
  20. 10-K · period ending 2024-12-31 · accession 0001193125-26-065183 (CashAndCashEquivalentsAtCarryingValue)