Howmet Aerospace Inc. (HWM) stock intrinsic value fair value estimate & owner earnings analysis

Howmet Aerospace makes the high-temperature cast and forged parts inside jet and gas-turbine engines (Engine Products), aerospace and industrial fasteners (Fastening Systems), airframe structures (Engineered Structures) and forged aluminum truck wheels (Forged Wheels). Sales were $8.25 billion in 2025, up 11% (2024: $7.43 billion, 2023: $6.64 billion), driven by commercial aerospace, defense and industrial gas turbines, including engine spare parts and price increases under long-term customer agreements. About 53% of sales are to US destinations. Two customers, RTX Corporation and GE Aerospace, each took about 11% of 2025 sales, and aerospace (commercial and defense) is roughly 70% of revenue. Results depend heavily on aircraft build rates; the company itself says Boeing production rates have a material impact on it. The FAA did not approve 737 MAX rate increases until October 2025, and a Boeing strike in late 2024 slowed output. How we measured earnings. We start from operating cash flow, remove the swing from working capital (a cash drain every year as sales grew, $144 million to $309 million a year), subtract stock compensation as a real cost, and subtract only the maintenance portion of capital spending (2025 capex was $453 million, of which about $34 million is treated as growth). Pension contributions are left in as an ongoing cost. On that basis owner earnings were $518 million in 2021, $658 million in 2022, $979 million in 2023, $1,181 million in 2024 and $1,544 million in 2025 ($3.80 per share). Because lenders are valued separately below, we add back cash interest paid ($157 million in 2025) to get the cash the business generates before its lenders: $785 million, $882 million, $1,200 million, $1,361 million and $1,701 million for 2021 through 2025. The series starts in 2021 because 2019 and 2020 cash flows still include Arconic Corporation, separated in April 2020. The median of 2024 and 2025 is about $1.53 billion; 2021 through 2023 were recovery years with sales below the pre-2020 level and understate the business as it is now. We start the forecast from the 2025 level of $1.70 billion rather than that median because the quarters since have confirmed it: first-half 2026 operating cash flow was $1,036 million against $699 million a year earlier, on sales up 22% to $4.86 billion. Growth. Cash generated before lenders grew 25% in 2025. Our base case puts 2026 at $1.87 billion for the core business, only 10% above 2025 and below the trailing rate, then tapers growth to zero by 2035 (8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%). That is well under the 11% to 17% annual sales growth of the last three years. Credited growth rests on things already in place: three straight years of price increases under long-term customer agreements, engine spare-parts demand from engines already flying, and the FAA's October 2025 approval of higher 737 MAX rates. We left out margin expansion, new programs, share gains and any further market expansion, because none of those is secured. After 2035 earnings are held flat, because parts installed on engines in service keep needing spares (spares growth was cited in the 2023, 2024 and 2025 results); we do not assume growth there. Acquisition and debt. In 2026 Howmet bought Consolidated Aerospace Manufacturing (closed April 6, 2026, about $1.8 billion cash) and Brunner Manufacturing (about $120 million, February 2026). Borrowings rose from $3.05 billion at year-end 2025 to $4.50 billion at June 30, 2026 (long-term debt $4.05 billion plus $450 million of commercial paper), with $563 million of cash. We count the acquired fastener business only at what the parties have disclosed: the seller put 2025 sales at $405-415 million with a high-teens margin before interest, tax and depreciation, and Howmet expects 2026 sales of $485-495 million at a margin above 20% before cost savings. These are company statements we could not tie to audited filings, so we credit $65 million a year of cash flow in the base case, $45 million in the bear case and $88 million in the bull case; that is a low return on $1.8 billion, so the deal adds little value. Brunner is not credited. Most of the debt carries low fixed rates (3.0% notes due 2029, 4.85% notes due 2031, 4.55% notes due 2032, and 3.75%, 3.9% and 4.75% notes issued in March 2026), worth about $205 million in reduced cost over their lives, and we offset debt only with cash above a $300 million operating buffer ($263 million). Net debt used is about $4.03 billion, or $10.03 per share. About $1.9 billion falls due through 2029 (including the 5.9% notes due 2027 and 6.75% bonds due 2028), against roughly $1.7 billion a year of cash flow before interest, so maturities look manageable in every case below. Base case: business worth about $45.3 billion, less $4.0 billion of net debt, leaves $41.3 billion, or $102.7 per share. Bear case: aerospace demand stalls again, using the 2020 pandemic as the template, when sales fell 26% (from $7.10 billion to $5.26 billion) and took several years to recover. We assume cash before lenders drops to $1.0 billion in 2027, recovers only to $1.1 billion, $1.3 billion and $1.5 billion over the next three years, returns to $1.7 billion in 2031 with no growth after, and then declines 3% a year after 2036 as engine programs age. The acquired business earns $45 million. Business worth about $22.9 billion, less $4.0 billion of net debt, leaves $18.9 billion, or $46.9 per share. Even at the trough the business covers its roughly $200 million interest bill about five times, so debt does not threaten shareholders here. Bull case: the levers already visible run well: higher 737 MAX rates, continued pricing and spares growth, and the acquired business reaching Howmet's stated 2026 sales and margin. Core cash flow grows 20% in 2026, then 15%, 12%, 10%, 9%, 8%, 6%, 5%, 4%, 3% and 2% through 2036, and is flat afterwards. Business worth about $66.4 billion, less $4.0 billion of net debt, leaves $62.4 billion, or $155.1 per share. What we tested. The base case's 2026 core level ($1.87 billion) is modest against first-half 2026 operating cash flow of $1,036 million (about $2.07 billion annualized, with only $198 million of capital spending in the half), so the near-term level does not hang on a single quarter. We also checked customer concentration: RTX and GE Aerospace at about 11% each are large, but these are long-term agreements on engines whose parts cannot easily be re-sourced, and the bear case's sharp volume drop already covers a customer pulling back. The risk we cannot size is the Grenfell Tower litigation: Arconic Corporation indemnifies Howmet for it, trial is expected between October 2028 and July 2029, and we assign no cost because Howmet has not disclosed an amount; if that indemnity failed, the exposure would fall on Howmet. Nothing material in the business has changed since our previous estimate two weeks ago; the third-quarter results due later this month are the next real test. The estimate would be wrong if aircraft build rates fall short for years, pricing gives back, or the acquisition earns well below what the parties have described. Margin of safety price. We are fairly sure of the earnings level: five years of steadily rising cash flow, confirmed by the first half of 2026, from parts that are certified into specific engines and airframes and hard to replace. The worst plausible event is a repeat of 2020, a sudden collapse in air travel, which cut sales by a quarter in one year; the business survived that carrying more debt relative to its cash flow than it does now, and its debt is mostly long-dated and fixed, so the structure would hold. If we are wrong about the pace of build-rate increases and the durability of pricing, the shares are worth roughly the bear case of about $47; if we are wrong only about how long growth lasts, they are worth something in the $75 to $90 range. The price assumes a holding period of about three years, and the business pays only a small dividend during that time, so nearly all of any return must come from value being recognized. From $60 a share, the base case reaching about $103 in three years implies roughly 20% a year, and the bear value of about $47 implies a loss the cash flow would likely recover over time. The margin-of-safety price is $60.