A Network Costs the Same at Ten Trillion or ElevenWide moat

Mastercard (MA) — moat facet

Mastercard's operating margin rose to 60% in the latest quarter, because carrying the next payment costs it almost nothing.

The single best number in Mastercard's accounts is the operating margin. It was 52.5% in 20151, 55.8% in 2023, 55.3% in 2024 and 57.6% in 20252, and 60.2% in the second quarter of 20263. A company that keeps widening its margin while handing more than half of its gross network fees back to banks has a very cheap machine.

Operating income ($M)5,07820156,62220177,28220189,66420198,081202012,264202218,8972025Mastercard Forms 10-K FY2017-FY2025; margin 52.5% in 2015, 57.6% in 2025
Operating income nearly quadrupled; the dips are litigation and the pandemic.

The reason is fixed cost. Carrying the next transaction costs almost nothing once the network, data centres and relationships exist. Net revenue grew from $9,667 million in 2015 to $32,791 million in 202545, and operating income from $5,078 million to $18,897 million over the same years67.

The margin has had bad years, and they are instructive. In 2018 it dipped to 48.7%8, largely because of a $1,128 million provision for litigation that included a $654 million charge for a European Commission fine9. The network did not become less efficient; the lawyers became more expensive.

The costs that do grow are people and litigation. Operating expenses rose 10% in the second quarter of 2026 while net revenue rose 14%10, so the gap is still widening.

The latest quarter shows the leverage clearly. Operating expenses were $3,690 million, up 10%, against net revenue of $9,277 million, up 14%11. That four-point gap turned into 17% operating income growth12. The first half repeated it: net income was $8,270 million and diluted earnings per share $9.3213. Few businesses of this size can grow costs by a tenth and profit by a sixth in the same quarter, and those that can usually own a network.

The margin is the best single test of whether the moat is holding, and it has not fallen in the latest figures. A sustained move back below 55% would say rebates or services mix are eating into the economics.

Moat trajectory: Widening

Operating margin reached 57.6% in 2025 and 60.2% in Q2 2026.

The number that tests this moat
Reported
Operating margin, latest quarter
60.2% (Q2 2026); 57.6% in 2025

The whole machine in one number; a fall below 55% would say rebates or services mix are diluting it.

Source: Mastercard Q2 2026 results release ↗
⚠ Threats to the moat
⚠ THREAT 01
Headcount Tripled to 39,800
Mastercard's workforce nearly tripled in eight years, which is what a services business costs.
References
  1. Moat Explorer calcIt was 52.5% in 2015, 55.8% in 2023, 55.3% in 2024 and 57.6% in 2025, and 60.2% in the second quarter of 2026.
    Moat Explorer calculation from Mastercard's reported figures ($ millions unless stated). Gross payment network assessments 2025: 11,029 + 12,021 + 15,930 + 1,018 = 39,998; rebates 20,522 / 39,998 = 51.3%; 2024: 10,245 + 10,181 + 13,602 + 936 = 34,964, 17,629 / 34,964 = 50.4%; 2023: 15,182 / (15,824 + 15,182) = 49.0%; 2022: 8,794 + 6,597 + 10,646 + 766 = 26,803, 12,445 / 26,803 = 46.4%; 2021: 10,476 / (11,943 + 10,476) = 46.7%. Q2 2026: 5,997 / (5,451 + 5,997) = 52.4%; gross assessments growth (5,451 + 5,997) / (4,945 + 5,997 / 1.22) - 1 = about 16%. Old basis: 3,980 / 13,647 = 29.2% (2015); 8,315 / 23,616 = 35.2% (2020). Rebates 20,522 / 3,980 = 5.2 times; net revenue 32,791 / 9,667 = 3.4 times. Rebates against gross revenue 2025: 20,522 / (32,791 + 20,522 = 53,313) = 38.5%; Visa 15,751 / (40,000 + 15,751 = 55,751) = 28.3%; difference 20,522 - 15,751 = 4,771. US share: 2,958 / (2,958 + 7,028) = 29.6%; four networks 2,958 / 11,463 = 25.8%; Amex and Discover 11,463 - 9,986 = 1,477, 1,477 / 11,463 = 12.9%. Outside the US 100% - 29% = 71%. Cross-border assessments 12,021 / 3,498 = 3.4 times; cross-border volume fees 3,512 / 5,606 - 1 = -37.4%; 12,021 x 0.37 = 4,448. Services share of net revenue: 5,404 / 15,301 = 35.3% (2020); 6,941 / 18,884 = 36.8%; 7,879 / 22,237 = 35.4%; 9,274 / 25,098 = 37.0%; 10,832 / 28,167 = 38.5%; 13,315 / 32,791 = 40.6% (2025); 3,826 / 9,277 = 41.2% (Q2 2026); payment network 19,476 / 32,791 = 59.4%. Growth: payment network 11,943 / 9,897 - 1 = 21%, 14,358 / 11,943 - 1 = 20%, 15,824 / 14,358 - 1 = 10%, 17,335 / 15,824 - 1 = 10%, 19,476 / 17,335 - 1 = 12%; 19,476 / 9,897 = 2.0 times; services 7,879 / 6,941 - 1 = 14% (2022), 13,315 / 5,404 = 2.5 times; growth gap Q2 2026 20% - 10% = 10 points; acquisitions 3 / 23 = 13%. Operating margin: 5,078 / 9,667 = 52.5% (2015); 6,622 / 12,497 = 53.0% (2017); 7,282 / 14,950 = 48.7% (2018); 9,664 / 16,883 = 57.2% (2019); 8,081 / 15,301 = 52.8% (2020); 12,264 / 22,237 = 55.2% (2022). Headcount 39,800 / 13,400 = 3.0 times; net revenue 32,791 / 12,497 = 2.6 times (2017-2025). Capital spending 489 + 726 = 1,215; 1,215 / 32,791 = 3.7%; free cash flow 17,648 - 1,215 = 16,433; returned 11,727 + 2,756 = 14,483, 14,483 / 16,433 = 88%. Net debt 30 June 2026: 2,459 + 22,184 - 11,291 = 13,352. Diluted shares 906 / 1,137 - 1 = -20.3%; EPS 16.52 / 3.35 = 4.9 times, (16.52 / 3.35)^(1/10) - 1 = 17.3% a year; net income 14,968 / 3,808 = 3.9 times; net revenue (32,791 / 9,667)^(1/10) - 1 = 13.0% a year. Year-end P/E (market value over net income): 109.31 / 3.808 = 28.7 (2015); 160.24 / 3.915 = 40.9 (2017); 301.24 / 8.118 = 37.1 (2019); 353.05 / 8.687 = 40.6 (2021); 334.33 / 9.930 = 33.7 (2022); 483.30 / 12.874 = 37.5 (2024); 512.65 / 14.968 = 34.2 (2025); earnings yield 1 / 31.13 = 3.2%. Litigation provision against net income: 504 / 14,968 = 3.4%; 539 / 11,195 = 4.8%; 680 / 12,874 = 5.3%. Tax: pre-tax income 2025 14,968 + 3,610 = 18,578; (19.4% - 15.6%) x 18,578 = about 706. Amortised incentives 2,098 / 19,476 = 10.8%. Five-customer net revenue 6.9 bn. BVNK 1,500 / 11,727 = 13% of 2025 buybacks; acquisitions since 2020 809 + 861 + 325 + 2,700 + 1,500 = 6,195, 1,500 / 6,195 = 24%. Recorded Future 2,700 / 14,968 = 18%. Commercial gross dollar volume 1,405 / 10,632 = 13.2%. Property, equipment and right-of-use assets 1,168 + 1,135 = 2,303 - rebates, assessments and growth. — 2015-2026 · publ. September 2026 · source ↗
    Method: Arithmetic on figures reported in Mastercard's Forms 10-K, 10-Q, results releases, the Visa 10-K and the Nilson Report; operands shown in the source line.
  2. ReportedIt was 52.5% in 2015, 55.8% in 2023, 55.3% in 2024 and 57.6% in 2025, and 60.2% in the second quarter of 2026.
    Mastercard Form 10-K for fiscal 2025 - Item 7 MD&A: net revenue by category, key metrics, rebates, geography and the five largest customers. — FY2025 · publ. 11 February 2026 · source ↗
  3. ReportedIt was 52.5% in 2015, 55.8% in 2023, 55.3% in 2024 and 57.6% in 2025, and 60.2% in the second quarter of 2026.
    Mastercard second-quarter 2026 results release, Form 8-K exhibit 99.1 - statements, cash flow, balance sheet and operating metrics by region. — Q2 2026 · publ. 30 July 2026 · source ↗
  4. ReportedNet revenue grew from $9,667 million in 2015 to $32,791 million in 2025, and operating income from $5,078 million to $18,897 million over the same years.
    Mastercard Form 10-K for fiscal 2017 - gross revenue and rebates for 2015-2017, net income and EPS, headcount and the 2017 tax charge. — FY2017 · publ. February 2018 · source ↗
  5. ReportedNet revenue grew from $9,667 million in 2015 to $32,791 million in 2025, and operating income from $5,078 million to $18,897 million over the same years.
    Mastercard Form 10-K for fiscal 2025 - Item 7 MD&A: net revenue by category, key metrics, rebates, geography and the five largest customers. — FY2025 · publ. 11 February 2026 · source ↗
  6. ReportedNet revenue grew from $9,667 million in 2015 to $32,791 million in 2025, and operating income from $5,078 million to $18,897 million over the same years.
    Mastercard Form 10-K for fiscal 2017 - gross revenue and rebates for 2015-2017, net income and EPS, headcount and the 2017 tax charge. — FY2017 · publ. February 2018 · source ↗
  7. ReportedNet revenue grew from $9,667 million in 2015 to $32,791 million in 2025, and operating income from $5,078 million to $18,897 million over the same years.
    Mastercard Form 10-K for fiscal 2025 - Item 7 MD&A: net revenue by category, key metrics, rebates, geography and the five largest customers. — FY2025 · publ. 11 February 2026 · source ↗
  8. Moat Explorer calcIn 2018 it dipped to 48.7%, largely because of a $1,128 million provision for litigation that included a $654 million charge for a European Commission fine.
    Moat Explorer calculation from Mastercard's reported figures ($ millions unless stated). Gross payment network assessments 2025: 11,029 + 12,021 + 15,930 + 1,018 = 39,998; rebates 20,522 / 39,998 = 51.3%; 2024: 10,245 + 10,181 + 13,602 + 936 = 34,964, 17,629 / 34,964 = 50.4%; 2023: 15,182 / (15,824 + 15,182) = 49.0%; 2022: 8,794 + 6,597 + 10,646 + 766 = 26,803, 12,445 / 26,803 = 46.4%; 2021: 10,476 / (11,943 + 10,476) = 46.7%. Q2 2026: 5,997 / (5,451 + 5,997) = 52.4%; gross assessments growth (5,451 + 5,997) / (4,945 + 5,997 / 1.22) - 1 = about 16%. Old basis: 3,980 / 13,647 = 29.2% (2015); 8,315 / 23,616 = 35.2% (2020). Rebates 20,522 / 3,980 = 5.2 times; net revenue 32,791 / 9,667 = 3.4 times. Rebates against gross revenue 2025: 20,522 / (32,791 + 20,522 = 53,313) = 38.5%; Visa 15,751 / (40,000 + 15,751 = 55,751) = 28.3%; difference 20,522 - 15,751 = 4,771. US share: 2,958 / (2,958 + 7,028) = 29.6%; four networks 2,958 / 11,463 = 25.8%; Amex and Discover 11,463 - 9,986 = 1,477, 1,477 / 11,463 = 12.9%. Outside the US 100% - 29% = 71%. Cross-border assessments 12,021 / 3,498 = 3.4 times; cross-border volume fees 3,512 / 5,606 - 1 = -37.4%; 12,021 x 0.37 = 4,448. Services share of net revenue: 5,404 / 15,301 = 35.3% (2020); 6,941 / 18,884 = 36.8%; 7,879 / 22,237 = 35.4%; 9,274 / 25,098 = 37.0%; 10,832 / 28,167 = 38.5%; 13,315 / 32,791 = 40.6% (2025); 3,826 / 9,277 = 41.2% (Q2 2026); payment network 19,476 / 32,791 = 59.4%. Growth: payment network 11,943 / 9,897 - 1 = 21%, 14,358 / 11,943 - 1 = 20%, 15,824 / 14,358 - 1 = 10%, 17,335 / 15,824 - 1 = 10%, 19,476 / 17,335 - 1 = 12%; 19,476 / 9,897 = 2.0 times; services 7,879 / 6,941 - 1 = 14% (2022), 13,315 / 5,404 = 2.5 times; growth gap Q2 2026 20% - 10% = 10 points; acquisitions 3 / 23 = 13%. Operating margin: 5,078 / 9,667 = 52.5% (2015); 6,622 / 12,497 = 53.0% (2017); 7,282 / 14,950 = 48.7% (2018); 9,664 / 16,883 = 57.2% (2019); 8,081 / 15,301 = 52.8% (2020); 12,264 / 22,237 = 55.2% (2022). Headcount 39,800 / 13,400 = 3.0 times; net revenue 32,791 / 12,497 = 2.6 times (2017-2025). Capital spending 489 + 726 = 1,215; 1,215 / 32,791 = 3.7%; free cash flow 17,648 - 1,215 = 16,433; returned 11,727 + 2,756 = 14,483, 14,483 / 16,433 = 88%. Net debt 30 June 2026: 2,459 + 22,184 - 11,291 = 13,352. Diluted shares 906 / 1,137 - 1 = -20.3%; EPS 16.52 / 3.35 = 4.9 times, (16.52 / 3.35)^(1/10) - 1 = 17.3% a year; net income 14,968 / 3,808 = 3.9 times; net revenue (32,791 / 9,667)^(1/10) - 1 = 13.0% a year. Year-end P/E (market value over net income): 109.31 / 3.808 = 28.7 (2015); 160.24 / 3.915 = 40.9 (2017); 301.24 / 8.118 = 37.1 (2019); 353.05 / 8.687 = 40.6 (2021); 334.33 / 9.930 = 33.7 (2022); 483.30 / 12.874 = 37.5 (2024); 512.65 / 14.968 = 34.2 (2025); earnings yield 1 / 31.13 = 3.2%. Litigation provision against net income: 504 / 14,968 = 3.4%; 539 / 11,195 = 4.8%; 680 / 12,874 = 5.3%. Tax: pre-tax income 2025 14,968 + 3,610 = 18,578; (19.4% - 15.6%) x 18,578 = about 706. Amortised incentives 2,098 / 19,476 = 10.8%. Five-customer net revenue 6.9 bn. BVNK 1,500 / 11,727 = 13% of 2025 buybacks; acquisitions since 2020 809 + 861 + 325 + 2,700 + 1,500 = 6,195, 1,500 / 6,195 = 24%. Recorded Future 2,700 / 14,968 = 18%. Commercial gross dollar volume 1,405 / 10,632 = 13.2%. Property, equipment and right-of-use assets 1,168 + 1,135 = 2,303 - valuation, capital returns, tax, litigation and acquisitions. — 2015-2026 · publ. September 2026 · source ↗
    Method: Arithmetic on figures reported in Mastercard's Forms 10-K, 10-Q, results releases, the Visa 10-K and the Nilson Report; operands shown in the source line.
  9. ReportedIn 2018 it dipped to 48.7%, largely because of a $1,128 million provision for litigation that included a $654 million charge for a European Commission fine.
    Mastercard Form 10-K for fiscal 2020 - gross revenue and rebates for 2018-2020, the 2020 decline, the Finicity acquisition and the European Commission fine. — FY2020 · publ. February 2021 · source ↗
  10. ReportedOperating expenses rose 10% in the second quarter of 2026 while net revenue rose 14%, so the gap is still widening.
    Mastercard second-quarter 2026 results release, Form 8-K exhibit 99.1 - statements, cash flow, balance sheet and operating metrics by region. — Q2 2026 · publ. 30 July 2026 · source ↗
  11. ReportedOperating expenses were $3,690 million, up 10%, against net revenue of $9,277 million, up 14%.
    Mastercard second-quarter 2026 results release, Form 8-K exhibit 99.1 - statements, cash flow, balance sheet and operating metrics by region. — Q2 2026 · publ. 30 July 2026 · source ↗
  12. ReportedThat four-point gap turned into 17% operating income growth.
    Mastercard second-quarter 2026 results release, Form 8-K exhibit 99.1 - statements, cash flow, balance sheet and operating metrics by region. — Q2 2026 · publ. 30 July 2026 · source ↗
  13. ReportedThe first half repeated it: net income was $8,270 million and diluted earnings per share $9.32.
    Mastercard second-quarter 2026 results release, Form 8-K exhibit 99.1 - statements, cash flow, balance sheet and operating metrics by region. — Q2 2026 · publ. 30 July 2026 · source ↗
Sources
Generated September 25, 2026