Howmet Aerospace Financial Model

Engine Products

• Segment name: Engine Products
• Revenue driver formula: (Commercial OEM Build Rates x Shipsets) + (Installed Base x Spares Replacement Rate) + Defense Volume
• Historical growth rate: 14% to 15% CAGR (2023 to 2025).
• Key growth levers and headwinds: Driven by LEAP and GTF engine production, and highly profitable aftermarket spares (approaching 20% of total company revenue). Headwinds include OEM supply chain bottlenecks.
• Pricing dynamics: Long term contracts with raw material pass through clauses; strong pricing power in spares.
• Revenue recognition notes: Recognised over time for certain custom parts or at a point in time upon shipment.
• Seasonality: Generally stable, though Q4 often sees strong cash collections and delivery pushes.

Fastening Systems

• Segment name: Fastening Systems
• Revenue driver formula: Aircraft Build Rates x Fasteners per Airframe x Price per Fastener
• Historical growth rate: 15% to 17% CAGR.
• Key growth levers and headwinds: Tied directly to Boeing and Airbus production rates. Headwinds include Boeing 737 MAX production delays.
• Pricing dynamics: Contractual with inflation escalators.
• Revenue recognition notes: Point in time upon shipment.
• Seasonality: Mild, aligned with OEM production schedules.

Engineered Structures

• Segment name: Engineered Structures
• Revenue driver formula: Titanium Volume Shipped x Price per Pound
• Historical growth rate: 10% to 21% CAGR.
• Key growth levers and headwinds: Defense aerospace demand (e.g., F-35 program) and commercial widebody recovery.
• Pricing dynamics: Highly dependent on titanium sponge input costs, with pass through mechanisms.
• Revenue recognition notes: Point in time upon shipment.
• Seasonality: Defense orders can be lumpy depending on government contracting cycles.

Forged Wheels

• Segment name: Forged Wheels
• Revenue driver formula: Heavy Truck Build Rates x Wheels per Truck x Price per Wheel
• Historical growth rate: Negative 8% to flat.
• Key growth levers and headwinds: Highly cyclical, driven by Class 8 commercial truck orders and fleet replacement cycles.
• Pricing dynamics: Competitive, but Howmet commands a premium for lightweight aluminium wheels.
• Revenue recognition notes: Point in time upon shipment.
• Seasonality: Stronger in the first half of the year ahead of peak freight seasons.

• Total assets: Approximately $10.5 billion.
• Key asset categories: PP&E (manufacturing facilities), Inventory (high work in progress due to long casting cycles), and Receivables.
• Goodwill & intangibles: Approximately 30% of total assets, stemming from historical Alcoa acquisitions (e.g., Firth Rixson, RTI International Metals).
• Working capital profile:
• Days Sales Outstanding (DSO): 45 to 55 days.
• Days Inventory Outstanding (DIO): 90 to 110 days (aerospace castings require long lead times).
• Days Payable Outstanding (DPO): 60 to 75 days.
• Net working capital as % of revenue: 15% to 20%.
• Is working capital positive or negative? Positive. The company consumes cash for working capital as it ramps up production for growth.
• PP&E: Heavy machinery, furnaces, presses. Useful lives range from 10 to 30 years. Capex is split between maintenance and capacity expansion (e.g., new airfoil facilities).
• Right of use assets / operating leases: Immaterial relative to owned heavy machinery.

• Capex as % of revenue: 4% to 5% ($321 million in 2024, scaling up with revenue).
• Maintenance capex vs. growth capex: Approximately 40% maintenance, 60% growth (capacity expansions for aerospace airfoils).
• Major capex programmes underway: Expanding production capacity for engine airfoils supported by long term customer agreements.
• Capitalised software / development costs: Immaterial.
• M&A pattern: Organic grower. The company focuses on internal capacity rather than acquisitions.
• Typical acquisition multiple paid: Not applicable currently.

• Total debt: Approximately $3.8 billion; net debt is approximately $3.2 billion.
• Debt/EBITDA ratio: Net debt to Adjusted EBITDA is approximately 1.0x to 1.4x (1.4x at end of 2024).
• Credit rating: Investment grade (BBB minus / Baa3).
• Key debt instruments: Unsecured senior notes with staggered maturities.
• Maturity profile: Well laddered, with the company actively retiring near term maturities using free cash flow.
• Interest rate profile: Primarily fixed rate bonds. Weighted average cost of debt is approximately 4.5% to 5.5%.
• Covenants: Standard investment grade incurrence covenants; highly compliant.
• Share repurchase programme: Highly active. $700 million repurchased in 2025, $500 million in 2024.
• Dividend policy: Growing dividend. Paid $0.44 per share in 2025, following a 25% increase in early 2025.

• Operating cash flow conversion: OCF is typically 1.2x to 1.3x Net Income ($1.9 billion OCF in 2025 on $1.5 billion Net Income).
• Free cash flow margin: 15% to 18% of revenue.
• Major non cash items: Depreciation and amortisation, deferred income taxes.
• Working capital cash flow impact: Use of cash during periods of high revenue growth due to inventory build requirements.
• Capex intensity: Moderate (4% to 5% of revenue), but highly efficient in generating return on invested capital.
• Cash tax rate vs. GAAP effective tax rate: Cash taxes are generally aligned with the GAAP effective tax rate of 21% to 23%, with minor timing differences from depreciation tax shields.

1. Assumptions: Hardcoded drivers for macroeconomic factors, segment growth rates, margin profiles, working capital days, and capital allocation.
2. Revenue & Segment Build: Projects revenue, EBITDA, and EBITDA margin for Engine Products, Fastening Systems, Engineered Structures, and Forged Wheels.
3. Income Statement: Consolidated P&L from Revenue down to Net Income and EPS, referencing the Segment Build for top line and operating profit.
4. Balance Sheet: Assets, Liabilities, and Shareholders Equity. Includes specific lines for Inventories, Goodwill, and Long Term Debt.
5. Cash Flow Statement: Indirect method starting from Net Income, adjusting for D&A, working capital changes, capex, debt repayment, and shareholder returns.
6. Debt & Interest Schedule: Tranches of senior notes, interest expense calculations, and debt paydown logic based on available free cash flow.
7. Working Capital & Capex: Schedules for Accounts Receivable, Inventory, Accounts Payable, and PP&E rollforwards.
8. DCF & Valuation: Unlevered free cash flow calculation, WACC build, terminal value, and implied share price.

1. Total Revenue = Engine Products Revenue + Fastening Systems Revenue + Engineered Structures Revenue + Forged Wheels Revenue
2. Engine Products Revenue = Prior Year Engine Products Revenue x (1 + Engine Products Growth Rate)
3. Segment Adjusted EBITDA = Segment Revenue x Segment Adjusted EBITDA Margin
4. Total Segment Adjusted EBITDA = Sum of Segment Adjusted EBITDAs
5. Consolidated Operating Income = Total Segment Adjusted EBITDA - Corporate Expenses - Depreciation & Amortisation
6. Interest Expense = Average Long Term Debt Balance x Weighted Average Interest Rate
7. Net Income = (Consolidated Operating Income - Interest Expense) x (1 - Effective Tax Rate)
8. Inventory Balance = (COGS / 365) x Days Inventory Outstanding
9. Free Cash Flow = Cash from Operations - Capital Expenditures
10. Ending Share Count = Beginning Share Count - (Share Repurchase Amount / Average Share Price)

The Assumptions sheet dictates the growth and margin inputs on the Revenue & Segment Build sheet. The Revenue & Segment Build sheet feeds Total Revenue and Operating Income into the Income Statement. The Income Statement generates Net Income, which is the starting point for the Cash Flow Statement. The Working Capital & Capex sheet calculates changes in NWC and D&A, which feed into the Cash Flow Statement and update the Balance Sheet. The Cash Flow Statement determines cash available for debt paydown or share repurchases, feeding the Debt & Interest Schedule. The Debt & Interest Schedule calculates Interest Expense, creating a circular reference with the Income Statement and Cash Flow Statement (requires an iterative calculation toggle).

Revenue, assets, and equity are represented as positive numbers. Expenses on the Income Statement are represented as positive numbers and subtracted in subtotals (e.g., Gross Profit = Revenue - COGS). On the Cash Flow Statement, cash inflows are positive, and cash outflows (such as Capital Expenditures, Dividends, and Debt Repayments) are negative. Contra asset accounts (like Accumulated Depreciation) are represented as positive numbers and subtracted from gross assets.

1. Overestimating Fastening Systems growth if Boeing or Airbus fail to meet their stated aircraft production ramp up targets.
2. Failing to account for the mix shift in Engine Products; aftermarket spares carry significantly higher margins than OEM parts, so margin expansion depends heavily on the spares mix.
3. Underestimating working capital needs; aerospace manufacturing requires long lead times, meaning inventory builds consume significant cash before revenue is realised.
4. Mismodelling the cyclicality of the Forged Wheels segment, which is tied to commercial trucking rather than aerospace and can contract sharply during freight recessions.
5. Double counting depreciation; Howmet reports Segment Adjusted EBITDA, so D&A must be subtracted at the consolidated level to reach Operating Income.
6. Ignoring corporate expense allocations; Total Segment Adjusted EBITDA will be higher than Consolidated Adjusted EBITDA due to unallocated corporate overhead.
7. Miscalculating interest expense savings; the company has aggressively paid down debt, meaning historical interest expense is much higher than go forward interest expense.
8. Forgetting to reduce the share count; Howmet allocates significant free cash flow to share repurchases, which materially boosts EPS over the forecast period.

1. Consolidated Adjusted EBITDA margin should be in the 28% to 31% range based on recent 2025 performance; flag if it drops below 25%.
2. Free Cash Flow Conversion (FCF / Net Income) should remain between 85% and 95% per management targets.
3. Capex as a percentage of revenue should run between 4.0% and 5.5%; flag if it falls below maintenance levels.
4. Net Debt to Adjusted EBITDA should remain below 1.5x, reflecting the company's investment grade profile.
5. The Balance Sheet must balance: Total Assets = Total Liabilities + Shareholders Equity in every forecast period.
6. Engine Products should represent approximately 45% to 55% of total revenue; flag if the segment mix shifts drastically without a modelled rationale.
7. Effective tax rate should remain between 21% and 23%.
8. Interest expense should decrease year over year if the model assumes continued debt paydown from free cash flow.

• SEC EDGAR link for Howmet Aerospace (HWM) 10-K and 10-Q filings.
• Howmet Aerospace Investor Relations page for quarterly earnings presentations and the 2025 Annual Meeting materials.
• Key peers for benchmarking: TransDigm Group (TDG), Woodward Inc. (WWD), Heico Corporation (HEI), and Precision Castparts (Berkshire Hathaway subsidiary).
• Industry data sources: Boeing and Airbus monthly order and delivery reports, Airline passenger traffic data (IATA), and ACT Research for Class 8 heavy truck build rates.
• Consensus estimates source: FactSet or Bloomberg for forward looking EPS and revenue estimates.

• Howmet Aerospace Q4 and Full Year 2025 Earnings Release (February 12, 2026).
• Howmet Aerospace 2024 Annual Report and 10-K (Filed early 2025).
• Howmet Aerospace Q4 and FY 2025 Earnings Presentation (February 12, 2026).
• Howmet Aerospace Investor Relations Website (https://www.howmet.com/investors/).