The Amortisation Cliff After 2029Narrow moat

Analog Devices (ADI) — moat facet

ADI's acquisition amortisation falls from $1.54 billion in fiscal 2026 to $404 million in fiscal 2030, so about $1.1 billion of the gap between reported and adjusted earnings closes by itself.

A large part of the gap between ADI's reported and adjusted earnings has an end date, and it is printed in the 10-K. Amortisation of acquired intangibles is scheduled at $1,537.5 million in fiscal 2026, $1,533.0 million in 2027, $1,465.3 million in 2028, $1,128.2 million in 2029 and $404.2 million in fiscal 20301. The charge falls by about $1,133.3 million between 2026 and 20302.

Scheduled amortisation of acquired intangibles ($M)1,537.5FY20261,533.0FY20271,465.3FY20281,128.2FY2029404.2FY2030Analog Devices Form 10-K FY2025, intangible assets note
The charge falls by almost three-quarters in fiscal 2030.

The mechanics are simple. Intangibles are written off over their estimated lives, and most of the customer relationships and technology bought with Maxim in 2021 run out by the end of the decade. Gross intangibles were $18,027.8 million at the end of fiscal 2025, of which $10,014.0 million had already been amortised3. More than half is gone.

What changes when the charge falls is GAAP earnings, not cash. Reported operating income will rise by roughly the fall in amortisation, all else equal, and the gap between the adjusted EPS the company guides to and the reported EPS it files will narrow. In fiscal 2025 acquisition-related expenses cost $3.24 a share4, against reported EPS of $4.565.

For a long-term owner the cliff matters in two ways. It makes the headline price-to-earnings ratio, 46.96 times trailing earnings6, less alarming than it looks, since part of the earnings gap will close by itself. And it removes the easiest defence of weak reported returns, which is that the amortisation hides the business.

The cliff can be pushed back by new deals, which is the subject of the danger below. If the scheduled amortisation for fiscal 2030 in the next 10-K rises above $600 million, new purchases will have refilled the pipeline and the cliff will have moved further out.

Moat trajectory: Widening

Scheduled amortisation falls from $1,537.5M (FY2026) to $404.2M (FY2030).

The number that tests this moat
Moat Explorer calc
Acquisition-related expenses in operating income, latest quarter
$397.8M (Q3 FY2026: $209.2M in cost of sales plus $188.6M in operating expenses)

The quarterly gap between reported and adjusted results; it should fall toward $100M by fiscal 2030 unless new deals refill it.

How it's calculated: Acquisition related expenses in cost of sales plus those in operating expenses, Analog Devices Q3 FY2026 results release reconciliation.
Source: Moat Explorer calculation from Analog Devices filings ↗
⚠ Threats to the moat
⚠ THREAT 01
The Next Deal Restarts the Clock
Empower and Alif add up to $3 billion of new purchases just as Maxim's amortisation runs out, and a buyer that keeps buying never reaches the cliff.
References
  1. ReportedA large part of the gap between ADI's reported and adjusted earnings has an end date, and it is printed in the 10-K. Amortisation of acquired intangibles is scheduled at $1,537.5 million in fiscal 2026, $1,533.0 million in 2027, $1,465.3 million in 2028, $1,128.2 million in 2029 and $404.2 million in fiscal 2030.
    Analog Devices Form 10-K for fiscal 2025 (year ended 1 November 2025) - goodwill, intangible assets and their amortisation schedule, and the single reporting unit. — FY2025 · publ. 25 November 2025 · source ↗
  2. Moat Explorer calcThe charge falls by about $1,133.3 million between 2026 and 2030.
    Moat Explorer calculation from Analog Devices reported figures ($ millions unless stated; fiscal years ending late October or early November). Revenue growth: FY2025 11,019.7 / 9,427.2 - 1 = +16.9%; FY2024 9,427.2 / 12,305.5 - 1 = -23.4%; FY2023 12,305.5 / 12,014.0 - 1 = +2.4%; FY2022 12,014.0 / 7,318.3 - 1 = +64.2%; FY2021 7,318.3 / 5,603.1 - 1 = +30.6%; FY2020 5,603.1 / 5,991.1 - 1 = -6.5%; FY2019 5,991.1 / 6,224.7 - 1 = -3.8%; FY2024 revenue fall 12,305.5 - 9,427.2 = 2,878.3, about $2.9bn; FY2026 implied 10,805.6 + 4,300 = 15,105.6, about $15.1bn, 15,105.6 / 11,019.7 - 1 = +37%, 15,105.6 / 12,305.5 - 1 = +23%; Q3 FY2026 quarterly revenue 4,021.9 / 3,076.1 - 1 = +30.7% on Q4 FY2025; 4,021.9 / 2,423.2 = 1.66 times Q1 FY2025. Operating income: FY2024 2,032.8 / 3,823.1 - 1 = -46.8%, a fall of 3,823.1 - 2,032.8 = 1,790.3, about $1.8bn. Gross profit FY2024 5,381.3 / 7,877.2 - 1 = -31.7%. Gross margin FY2015 2,259.3 / 3,435.1 = 65.8%; FY2016 2,227.2 / 3,421.4 = 65.1%; reported gross margin range FY2015-FY2025 57.1% (FY2024) to 68.3% (FY2018); Q3 FY2026 adjusted less reported 72.5 - 67.3 = 5.2 points. Acquisition-related expenses Q3 FY2026 209.2 (cost of sales) + 188.6 (operating expenses) = 397.8; nine months FY2026 619.4 + 565.1 = 1,184.5. People: revenue per employee FY2021 7,318.3 / 24,700 = about $296,000; FY2022 12,014.0 / 24,450 = $491,000; FY2024 9,427.2 / 24,000 = $393,000; FY2025 11,019.7 / 24,500 = $450,000; engineers 13,000 / 24,500 = 53% (FY2025), 11,000 / 24,700 = 45% (FY2021); engineers added 13,000 - 11,000 = 2,000. R&D as a share of revenue: FY2015 637.5 / 3,435.1 = 18.6%; FY2016 653.8 / 3,421.4 = 19.1%; FY2017 968.1 / 5,246.4 = 18.5%; FY2018 1,165.0 / 6,224.7 = 18.7%; FY2019 1,130.3 / 5,991.1 = 18.9%; FY2020 1,050.5 / 5,603.1 = 18.7%; FY2021 1,296.1 / 7,318.3 = 17.7%; FY2022 1,700.5 / 12,014.0 = 14.2%; FY2023 1,660.2 / 12,305.5 = 13.5%; FY2024 1,487.9 / 9,427.2 = 15.8%; FY2025 1,766.0 / 11,019.7 = 16.0%; Q3 FY2026 533.5 / 4,021.9 = 13.3%; R&D FY2024 1,487.9 / 1,700.5 - 1 = -12.5%. End markets: FY2024 over FY2023 Industrial 4,290.3 / 6,565.4 - 1 = -34.7%; Communications 1,091.4 / 1,591.6 - 1 = -31.4%; Automotive 2,837.5 / 2,904.0 - 1 = -2.3%; Consumer 1,207.9 / 1,244.6 - 1 = -3.0%. FY2025 over FY2024 Industrial 4,929.4 / 4,290.3 - 1 = +14.9%; Automotive 3,277.9 / 2,837.5 - 1 = +15.5%; Communications 1,377.9 / 1,091.4 - 1 = +26.2%; Consumer 1,434.6 / 1,207.9 - 1 = +18.8%. FY2017 to FY2025: Industrial 4,929.4 / 2,324.7 = 2.12 times, 9.9% a year; Automotive 3,277.9 / 758.1 = 4.3 times, 20.1% a year; Communications 1,377.9 / 908.6 = 1.52 times, 5.3% a year; Consumer 1,434.6 / 1,255.0 = 1.14 times, 1.7% a year. Consumer share 1,255.0 / 5,246.4 = 23.9% (FY2017), 933.8 / 6,224.7 = 15.0%, 752.3 / 5,991.1 = 12.6%, 624.9 / 5,603.1 = 11.2%, 1,519.9 / 12,014.0 = 12.7%, 1,244.6 / 12,305.5 = 10.1%, 1,434.6 / 11,019.7 = 13.0% (FY2025), Q3 FY2026 397.2 / 4,021.9 = 9.9%. Automotive share 3,277.9 / 11,019.7 = 29.7% (FY2025), Q3 FY2025 857.1 / 2,880.3 = 29.8%, Q3 FY2026 998.2 / 4,021.9 = 24.8%. Communications share Q3 FY2025 354.8 / 2,880.3 = 12.3%, Q3 FY2026 654.5 / 4,021.9 = 16.3%. Industrial plus Communications (4,929.4 + 1,377.9) / 11,019.7 = 57.2% (FY2025); Q3 FY2026 (1,971.9 + 654.5 = 2,626.4) / 4,021.9 = 65.3%. Trailing twelve months to August 2026 (Q4 FY2025 + Q1 + Q2 + Q3 FY2026): Industrial 1,426.5 + 1,489.3 + 1,799.4 + 1,971.9 = 6,687.1; Automotive 852.2 + 794.4 + 871.6 + 998.2 = 3,516.4; Communications 389.8 + 476.8 + 554.7 + 654.5 = 2,075.8; Consumer 407.5 + 399.8 + 397.8 + 397.2 = 1,602.3. Distributor revenue Q3 FY2026 2,327.1 / 1,592.4 - 1 = +46.1%. Geography: China share of revenue 898.6 / 5,246.4 = 17.1% (FY2017); 1,215.9 / 6,224.7 = 19.5%; 1,316.3 / 5,991.1 = 22.0%; 1,348.0 / 5,603.1 = 24.1%; 1,614.4 / 7,318.3 = 22.1%; 2,563.5 / 12,014.0 = 21.3%; 2,229.6 / 12,305.5 = 18.1%; 2,128.8 / 9,427.2 = 22.6%; 2,858.3 / 11,019.7 = 25.9% (FY2025); China growth 2,858.3 / 2,128.8 - 1 = +34.3%; United States growth 3,238.1 / 2,840.4 - 1 = +14.0%; China over United States 2,858.3 / 3,238.1 = 88%; United States share 3,238.1 / 11,019.7 = 29.4% (FY2025), 4,165.3 / 12,305.5 = 33.8% (FY2023). Customers: distributors at 10% or more FY2024 24% + 12% + 12% = 48%; FY2025 24% + 13% = 37% (a second distributor below 10%). Acquisitions and balance sheet: Linear price 15.8bn / FY2016 revenue 3.42bn = 4.6 times; goodwill FY2017 12,217.5 / FY2016 1,679.1 = 7.3 times; goodwill 1 August 2026 27,988.7 / FY2015 1,636.5 = 17.1 times; Maxim goodwill added 26,918.5 - 12,278.4 = 14,640.1, about $14.6bn; Linear plus Maxim 15.8 + 28.0 = 43.8, about $44bn; goodwill and intangibles (26,945.2 + 8,013.8) / 47,992.7 = 72.8% (1 November 2025); (27,988.7 + 7,468.2 = 35,456.9) / 48,424.4 = 73.2% (1 August 2026); other assets 47,992.7 - 26,945.2 - 8,013.8 = 13,033.7; market value over equity 191.61bn / 33.55bn = 5.7 times; over goodwill 191.61 / 27.99 = 6.8 times; amortisation fall FY2026 to FY2030 1,537.5 - 404.2 = 1,133.3; Empower plus Alif 1.5 + 1.35 + 0.2 = 3.05bn; Empower 1.5 / total assets 48.4 = 3%. Cash: free cash flow = operating cash flow less capital expenditure: FY2015 907.8 - 154.0 = 753.8 (21.9% of revenue); FY2016 1,291.3 - 127.4 = 1,163.9 (34.0%); FY2017 1,154.4 - 204.1 = 950.3 (18.1%); FY2018 2,442.4 - 254.9 = 2,187.5 (35.1%); FY2019 2,253.1 - 275.4 = 1,977.7 (33.0%); FY2020 2,008.5 - 165.7 = 1,842.8 (32.9%); FY2021 2,735.1 - 343.7 = 2,391.4 (32.7%); FY2022 4,475.4 - 699.3 = 3,776.1 (31.4%); FY2023 4,817.6 - 1,261.5 = 3,556.1 (28.9%); FY2024 3,852.5 - 730.5 = 3,122.0 (33.1%); FY2025 4,278.6 / 11,019.7 = 38.8%; TTM August 2026 4,937.5 / 13,881.5 = 36%. Capital expenditure as a share of revenue: FY2015 4.5%, FY2016 3.7%, FY2017 3.9%, FY2018 4.1%, FY2019 4.6%, FY2020 3.0%, FY2021 4.7%, FY2022 699.3 / 12,014.0 = 5.8%, FY2023 1,261.5 / 12,305.5 = 10.3%, FY2024 730.5 / 9,427.2 = 7.7%, FY2025 533.6 / 11,019.7 = 4.8%, TTM 607.8 / 13,881.5 = 4.4%; FY2025 over FY2023 533.6 / 1,261.5 = 42%. Cash returned over free cash flow: FY2021 (1,109.3 dividends + 2,605.1 buybacks) / 2,391.4 = 155%; FY2022 (1,544.6 + 2,577.0) / 3,776.1 = 109%; FY2023 (1,679.1 + 2,964.0) / 3,556.1 = 131%; FY2024 (1,795.5 + 615.6) / 3,122.0 = 77%; FY2025 (1,924.4 + 2,164.6) / 4,278.6 = 96%; TTM 5,170 / 4,937.5 = 105%. Buybacks FY2024 615.6 / FY2023 2,964.0 = 21%, a fall of 79%; FY2021-FY2025 2,605.1 + 2,577.0 + 2,964.0 + 615.6 + 2,164.6 = 10,926.3, about $11bn. Dividends per share over diluted EPS: FY2015 1.57 / 2.20 = 71%; FY2018 1.89 / 4.00 = 47%; FY2020 2.40 / 3.28 = 73%; FY2022 2.97 / 5.25 = 57%; FY2023 3.34 / 6.55 = 51%; FY2024 3.62 / 3.28 = 110%; FY2025 3.89 / 4.56 = 85%. Dividend per share growth (3.89 / 1.57) ^ (1/10) - 1 = 9.5% a year. Shares outstanding 484,565,465 / 496,296,854 - 1 = -2.4%; 484,565,465 / 489,654,097 - 1 = -1.0%. Debt: net debt 1 November 2025 = long-term debt 8,145.1 + commercial paper 446.6 - cash 2,499.4 - short-term investments 1,152.9 = 4,939.4; 1 August 2026 = 6,771.6 + 1,344.9 + 1,005.1 - 2,165.9 - 159.1 = 6,796.6; net debt over trailing free cash flow 6,796.6 / 4,937.5 = 1.4 times; cash and short-term investments 2,499.4 + 1,152.9 = 3,652.3 (FY2025 end) and 2,165.9 + 159.1 = 2,324.9 (1 August 2026); commercial paper 1,005.1 / 446.6 = 2.25 times. Working capital: receivables 2,389.6 / 1,436.1 - 1 = +66.4%; inventories 1,931.5 / 1,656.3 - 1 = +16.6%. Earnings and valuation: trailing net income to August 2026 = FY2025 2,267.3 - nine months FY2025 1,479.6 + nine months FY2026 3,347.3 = 4,135.0; market value 191.61bn / 4,135.0 = 46.3 times; FY2026 EPS build reported 6.83 + 3.14 = 9.97, adjusted 8.99 + 3.86 = 12.85; Q4 adjusted EPS guide low end 3.86 - 0.15 = 3.71. Year-end market value over fiscal-year net income: 17.26bn / 696.9 = 24.8 (FY2015); 32.82bn / 805.4 = 40.8 (FY2017); 31.77bn / 1,507.0 = 21.1 (FY2018); 54.58bn / 1,220.8 = 44.7 (FY2020); 92.34bn / 1,390.4 = 66.4 (FY2021); 83.54bn / 2,748.6 = 30.4 (FY2022); 98.54bn / 3,314.6 = 29.7 (FY2023); 105.44bn / 1,635.3 = 64.5 (FY2024); 132.79bn / 2,267.3 = 58.6 (FY2025). Additional: Q3 FY2025 shares of revenue Industrial 1,293.0 / 2,880.3 = 44.9%, Consumer 375.4 / 2,880.3 = 13.0%; Q3 FY2026 Industrial 1,971.9 / 4,021.9 = 49.0%; Industrial share Q1 FY2025 1,080.7 / 2,423.2 = 44.6%; Industrial Q3 FY2026 over Q1 FY2025 1,971.9 / 1,080.7 = 1.82 times, about 82% higher. Consumer growth Q1 FY2026 399.8 / 314.7 - 1 = +27%; Q2 FY2026 397.8 / 323.1 - 1 = +23%. Return on equity FY2025 2,267.3 / average (35,176.3 + 33,815.8) / 2 = 6.6%; FY2024 1,635.3 / average (35,565.1 + 35,176.3) / 2 = 4.6%. Customer relationships net of amortisation 10,335.9 - 5,311.2 = 5,024.7. Dividends paid 1,924.4 / 491.1 = 3.9 times. Regions FY2025 against FY2023: Japan 989.9 / 1,397.1 - 1 = -29.1%; Europe 2,285.6 / 3,001.9 - 1 = -23.9%; China 2,858.3 / 2,229.6 - 1 = +28.2%; rest of Asia 1,485.3 against 1,423.0; United States 3,238.1 against 4,165.3. Share price 395.43 / 445.91 - 1 = -11.3% from the 52-week high; 445.91 / 223.47 = 2.0 times; price-to-sales end FY2022 83.54bn / 12,014.0 = 7.0; trailing Communications 2,075.8 against FY2022 1,855.3. Competitors: Texas Instruments 2025 free cash flow 2,938 / revenue 17,682 = 16.6%; ADI 38.8% - 16.6% = 22.2 points; ADI revenue 11,019.7 / TI 17,682 = 62%; capital expenditure 4,550 / 533.6 = 8.5 times - revenue, margins, R&D, people and earnings. — FY2015-Q3 FY2026 · publ. September 2026 · source ↗
    Method: Arithmetic on figures reported in Analog Devices Forms 10-K, 10-Q and results releases, SEC XBRL, and the Texas Instruments 2025 Form 10-K; each operand is stated in the source line.
  3. ReportedGross intangibles were $18,027.8 million at the end of fiscal 2025, of which $10,014.0 million had already been amortised.
    Analog Devices Form 10-K for fiscal 2025 (year ended 1 November 2025) - goodwill, intangible assets and their amortisation schedule, and the single reporting unit. — FY2025 · publ. 25 November 2025 · source ↗
  4. ReportedIn fiscal 2025 acquisition-related expenses cost $3.24 a share, against reported EPS of $4.56.
    Analog Devices fourth-quarter and fiscal 2025 results release, Form 8-K exhibit 99.1 - full-year income statement, adjusted measures, cash flow, capital returns and balance sheet. — FY2025 · publ. 25 November 2025 · source ↗
  5. ReportedIn fiscal 2025 acquisition-related expenses cost $3.24 a share, against reported EPS of $4.56.
    Analog Devices fourth-quarter and fiscal 2025 results release, Form 8-K exhibit 99.1 - full-year income statement, adjusted measures, cash flow, capital returns and balance sheet. — FY2025 · publ. 25 November 2025 · source ↗
  6. Third-party estimateIt makes the headline price-to-earnings ratio, 46.96 times trailing earnings, less alarming than it looks, since part of the earnings gap will close by itself.
    stockanalysis.com, Analog Devices statistics, 28 September 2026: 484.57 million shares, trailing P/E 46.96, forward P/E 24.84, P/S 13.80, P/B 5.71, P/FCF 38.81, return on invested capital 10.96% (its own trailing method), institutions 92.63%. — September 2026 · publ. 28 September 2026 · source ↗
Sources
Generated September 29, 2026