Lamb Weston (LW) FY2026 10-K: Volume Up 7%, Price/Mix Down 6%, Margin Nearly Halved
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The Hook
Lamb Weston $LW sold 7% more frozen potato product in fiscal 2026 than it did the year before. Its operating profit is down 44.5% over two years.
That is not a typo, and it is not an inflation story. The company's own 10-K, filed July 24, 2026, gives the mechanism in a single sentence: sales volume increased 7%, and price/mix declined 6%. Lamb Weston bought the volume with price. Two years ago this business earned $1,065.3 million of operating income on $6,467.6 million of sales. In fiscal 2026 it earned $591.1 million on $6,612.3 million. Revenue is up 2.2% over that span. Operating margin went from 16.5% to 8.9% - lower than the 10.8% it managed in fiscal 2022, before the whole pricing cycle began.
Company Snapshot
Lamb Weston is the largest supplier of value-added frozen potato products in North America and a leading supplier internationally, selling into more than 100 countries through two reportable segments: North America and International. French fries are most of the portfolio. If you have eaten fast-food fries in the United States, you have probably eaten this company's product.
This analysis covers the fiscal 2026 Form 10-K, filed July 24, 2026, for the 53-week fiscal year ended May 31, 2026. The extra week matters, and we will come back to it.
The Financial Story
Headline revenue growth is almost entirely padding. Net sales rose $161.0 million, or 2.5%, to $6,612.3 million. The filing's own reconciliation then removes two things that have nothing to do with selling more fries at better prices: $123.1 million of favorable foreign exchange, and $127.1 million from the 53rd week. Strip both out and fiscal 2026 net sales were $6,362.1 million against $6,451.3 million a year earlier. The underlying business shrank 1.4%.
| Fiscal 2026 net sales bridge | $M |
|---|---|
| Reported net sales | 6,612.3 |
| Less: foreign exchange benefit | (123.1) |
| Less: 53rd week benefit | (127.1) |
| Net sales excl. FX and extra week | 6,362.1 |
| Fiscal 2025 net sales (52 weeks) | 6,451.3 |
| Underlying change | (89.2), or -1.4% |
Source: Lamb Weston FY2026 Form 10-K, MD&A non-GAAP reconciliation.
The margin did not go to costs. This is the part that surprised me, and it is where most write-ups get it backwards. Cost of sales rose $551.7 million over two years, but that tracks the extra volume, not a cost spike. The filing says the opposite of inflation: adjusted gross profit fell "primarily reflecting unfavorable global price/mix," and the offsets it lists are "higher volumes, lower manufacturing costs per pound, and improved operational efficiencies across the organization." Management's Cost Savings Program beat its first-year milestone of $100 million. SG&A is $36.8 million lower than fiscal 2024. Total potato purchases fell from $1,397.8 million in fiscal 2024 to $1,307.3 million in fiscal 2026 even as volume grew. The plants got cheaper to run and the margin still collapsed, because the price came down faster.
| $M unless noted | FY2024 | FY2025 | FY2026 |
|---|---|---|---|
| Net sales | 6,467.6 | 6,451.3 | 6,612.3 |
| Cost of sales | 4,700.9 | 5,052.7 | 5,252.6 |
| Gross profit | 1,766.7 | 1,398.6 | 1,359.7 |
| Gross margin | 27.3% | 21.7% | 20.6% |
| SG&A | 701.4 | 633.5 | 664.6 |
| Cost savings and restructuring expense | 0.0 | 100.0 | 104.0 |
| Operating income | 1,065.3 | 665.1 | 591.1 |
| Operating margin | 16.5% | 10.3% | 8.9% |
| Net income | 725.5 | 357.2 | 290.0 |
| Diluted EPS ($) | 4.98 | 2.50 | 2.08 |
Source: Lamb Weston FY2026 Form 10-K (XBRL). Restructuring is the income-statement line; total program charges were $111.6M in FY2026 and $185.8M in FY2025, with the balance sitting inside cost of sales.
The break is in International, not at home. North America did what management wanted: volume up 9% on customer retention and contract wins, and Segment Adjusted EBITDA up 3% to $1,142.3 million despite price/mix falling 6%. That is a defensible trade. International is a different story - price/mix also fell 6%, volume grew only 2%, and Segment Adjusted EBITDA fell $142.9 million, or 55%, to $114.7 million. Strip out FX and the extra week and International net sales were $2,061.1 million against $2,186.1 million, down 5.7%. The segment also absorbed an incremental $33.1 million pre-tax charge for writing off excess raw potatoes it had contracted for and no longer needed.
| Segment, FY2026 | Net sales $M | Reported | Volume | Price/mix | Seg. Adj. EBITDA $M | vs FY2025 |
|---|---|---|---|---|---|---|
| North America | 4,395.2 | +3% | +9% | -6% | 1,142.3 | +3% |
| International | 2,217.1 | +1% | +2% | -6% | 114.7 | -55% |
Source: Lamb Weston FY2026 Form 10-K, MD&A segment discussion. Segment Adjusted EBITDA is a non-GAAP measure defined in the filing.
Why the price broke: the industry built too much. Lamb Weston spent $929.5 million on property, plant and equipment in fiscal 2024, $638.2 million in fiscal 2025 and $402.7 million in fiscal 2026 - roughly $2.6 billion across four years, expanding fry capacity in the U.S., the Netherlands and Argentina. That capacity was committed when restaurant traffic was still strong. It landed into flat traffic. The 10-K's risk factors say it plainly: "Historically, market demand for value-added frozen potato products has generally been balanced with industry capacity," and then, "in fiscal 2026, we invested in price and trade support to compete in the increasingly competitive environment in both North America and other international markets." On the supply side, the filing cites "significant surplus in the European potato market due to expanded potato acreage and a robust crop." New capacity plus a potato glut plus flat demand equals price.
The cash is genuinely better, and that is the bull case. Operating cash flow rose to $942.9 million from $868.3 million, capital spending fell $235.5 million, and free cash flow (operating cash flow less purchases of property, plant and equipment) was roughly $540 million against $230 million a year earlier. Inventory came down to $968.5 million. The company returned $320.7 million to shareholders - $207.5 million of dividends and $113.2 million of buybacks at a weighted-average price of $48.28. Against that: total debt and financing obligations of $3,928.7 million versus $68.2 million of cash, or about 3.4x Adjusted EBITDA of $1,147.2 million, and interest expense that has climbed from $135.8 million in fiscal 2024 to $180.5 million. Stockholders' equity is $1,824.9 million, of which $1,130.1 million is goodwill.
Valuation - what it is worth as a normal business
Lamb Weston closed at $49.58 on July 24, 2026 (price per MacroTrends and Yahoo Finance, retrieved July 27, 2026; every other figure in this brief comes from the filing). On the 137,481,011 shares the 10-K cover reports outstanding as of July 17, 2026, that is a market capitalization of about $6.82 billion. Add net debt of roughly $3.86 billion and enterprise value is about $10.68 billion - 9.3x fiscal 2026 Adjusted EBITDA, 23.8x trailing diluted earnings, 1.03x sales, a 7.9% free cash flow yield on fiscal 2026 cash flow, and a 3.0% dividend yield on the $1.50 declared per share.
The filing's own fiscal 2027 outlook is the right starting point for a forecast: flat global restaurant traffic, low single-digit volume growth, a low single-digit price/mix decline, net sales flat to up slightly on comparable weeks, capital spending of $380-410 million and cash from operations of $750-800 million. That guidance implies fiscal 2027 free cash flow of roughly $340-420 million, below fiscal 2026, because this year's working-capital release does not repeat.
Scenario values below discount five years of free cash flow and apply an exit multiple to year-five Adjusted EBITDA, then subtract net debt of $3.86 billion and divide by 137.5 million shares. These are implied values under stated assumptions, not price targets and not investment advice.
| Scenario | Yr-1 FCF | FCF growth | EBITDA growth | Exit mult. | WACC | Implied value |
|---|---|---|---|---|---|---|
| Bear - price/mix keeps sliding, International keeps eroding | $320M | +1.5% | -1% | 7.5x | 8.5% | ~$21 |
| Base - filing guidance, cost savings hold, price stabilizes | $380M | +4% | +3% | 9.0x | 8.0% | ~$43 |
| Bull - traffic recovers, capacity absorbs, margin retraces halfway to FY24 | $500M | +5% | +5% | 10.5x | 7.5% | ~$66 |
A straight peer re-rating on the same Adjusted EBITDA gives a similar band: 7.5x implies about $34.50 per share, 9.0x about $47, and 10.5x about $59.50. The stock's current 9.3x sits just above the middle of that range.
Put together, both methods say the same thing. At $49.58 the market is already paying for a partial margin recovery. The base case, built on the company's own guidance, lands below today's price. You have to believe price/mix stops falling and the International segment stabilizes just to justify the current quote - and the leverage means the downside is violent, because $3.86 billion of net debt sits in front of the equity in every scenario.
Risks
Customer concentration is the structural one: the ten largest customers were approximately 50% of fiscal 2026 net sales, and McDonald's alone was approximately 15% (15% in fiscal 2025, 14% in fiscal 2024). When a customer that size renegotiates, "price and trade support" is not really optional, which is exactly what the last two years look like on the income statement. Second, the potato crop is a physical input with no active derivatives market in the U.S. or Europe, so the company hedges an unhedgeable commodity and eats write-offs when volume disappoints - the $33.1 million charge this year is the demonstration. Third, the filing warns that the International reporting unit's goodwill "is more sensitive to changes in projected operating results and key assumptions, including discount rates," and that lower-than-expected sales or a higher WACC "could reduce the International reporting unit's estimated fair value and result in a goodwill impairment." Against $1,130.1 million of carried goodwill, that is a live risk, not boilerplate. Fourth, the leverage: 3.4x net debt to Adjusted EBITDA with $180.5 million of annual interest leaves less room than a food company usually needs.
The Bottom Line
Lamb Weston is executing on the two things it controls. It is winning volume and share, especially in North America, and it is taking real cost out - manufacturing cost per pound is down and the Cost Savings Program beat its first-year target. What it does not control is price, and price is where the entire margin went. The framework for the next few quarters is simple: watch price/mix, not revenue. Revenue can be flattered by currency, an extra week, or volume bought at a discount. Price/mix is the only line that tells you whether the industry's capacity overhang has cleared. Management is guiding to another low single-digit price/mix decline in fiscal 2027, which means the answer for at least one more year is no.
Every figure above comes from Lamb Weston's fiscal 2026 Form 10-K, pulled from the SEC XBRL filings through RoboSystems. Run your own queries on any public company at robosystems.ai. This is analysis, not investment advice, and contains no price targets.