Broadcom: The Chip Supplier Cisco Now Competes WithNarrow moat

Cisco Systems (CSCO) — moat facet

Cisco left Broadcom's chip model to build its own silicon, and now spends $9.6 billion a year on research partly to compete with its former supplier.

Broadcom is the competitor Cisco chose to create. Arista, for one, builds its switches on Broadcom's merchant chips, as Broadcom's pages in this collection describe; Cisco instead builds its high-performance systems on its own Silicon One1. That puts Cisco in competition with Broadcom for the chips inside other companies' switches, a story Broadcom's pages in this collection tell from the other side.

Research and development expense ($M)7,983FY249,300FY259,563FY26Cisco Form 10-K FY2026
The price of owning the chip.

The choice costs money every year. Cisco's research and development expense was $7,983 million in fiscal 2024, $9,300 million in fiscal 2025 and $9,563 million in fiscal 20262, about 15% of revenue3. Cisco does not split research between software, chips and optics, but a vendor built on Broadcom's merchant chips would not carry the chip part of it.

The payoff is control. A hyperscaler can buy Silicon One chips, complete systems or both, and Cisco can design features into the silicon that merchant chips would take longer to offer. Cisco names Broadcom among its competitors4.

The risk is that Cisco carries a chip company's development costs on its own volumes.

Cisco's research budget grew faster than its revenue in fiscal 2025 and slower in fiscal 2026. Research and development rose about 16.5% in fiscal 2025, when revenue rose about 5.3%, and about 2.8% in fiscal 2026, when revenue rose about 11.8%56. The chip investment was front-loaded; the payoff came a year later.

This relationship will be settled by where Silicon One ends up. Research spending above 16% of revenue without Silicon One winning more outside customers would mean Cisco is paying a chip company's costs without a chip company's volume.

Moat trajectory: Holding steady

Silicon One powers Cisco's high-performance systems; R&D about 15% of revenue.

The number that tests this moat
Reported
Research and development, full year
$9,563M (FY2026), about 15% of revenue

The cost of owning the silicon; a rise above 16% without more outside chip customers would mean chip costs without chip volume.

Source: Cisco Form 10-K, FY2026 ↗
References
  1. ReportedArista, for one, builds its switches on Broadcom's merchant chips, as Broadcom's pages in this collection describe; Cisco instead builds its high-performance systems on its own Silicon One.
    Cisco Systems Form 10-K for fiscal 2026 (year ended 25 July 2026) - Item 1 business: products, strategy, employees and sales. — FY2026 · publ. 2 September 2026 · source ↗
  2. ReportedCisco's research and development expense was $7,983 million in fiscal 2024, $9,300 million in fiscal 2025 and $9,563 million in fiscal 2026, about 15% of revenue.
    Cisco Systems Form 10-K for fiscal 2026 (year ended 25 July 2026) - Item 1 business: products, strategy, employees and sales. — FY2026 · publ. 2 September 2026 · source ↗
  3. Moat Explorer calcCisco's research and development expense was $7,983 million in fiscal 2024, $9,300 million in fiscal 2025 and $9,563 million in fiscal 2026, about 15% of revenue.
    Moat Explorer calculation from Cisco's reported revenue, margins and financial statements ($ millions unless stated). Revenue growth FY2026 63,325 / 56,654 - 1 = 11.8%; increase 63,325 - 56,654 = 6,671. Networking share 34,668 / 63,325 = 54.7%; of product revenue 34,668 / 48,295 = 71.8%; networking increase 34,668 - 28,304 = 6,364, 6,364 / 6,671 = 95.4% of the revenue increase. Networking against FY2023 34,668 / 34,570 - 1 = 0.3%; FY2024 29,229 / 34,570 - 1 = -15.4% (a fall of 5,341); FY2025 28,304 / 29,229 - 1 = -3.2% (a fall of 925); FY2023 34,570 - 29,265 = +5,305. Other lines FY2026 changes: security 8,232 - 8,094 = +138 (+1.7%); collaboration 4,300 - 4,154 = +146 (+3.5%); observability 1,095 - 1,055 = +40 (+3.8%); services 15,030 - 15,046 = -16 (-0.1%). Product revenue 48,295 / 41,608 - 1 = 16.1%. Shares of FY2026 revenue: services 15,030 / 63,325 = 23.7%; security 8,232 / 63,325 = 13.0%; collaboration 4,300 / 63,325 = 6.8%; observability 1,095 / 63,325 = 1.7%. Observability shares: 581 / 51,557 = 1.1% (FY2022); 661 / 56,998 = 1.2%; 837 / 53,803 = 1.6%; 1,055 / 56,654 = 1.9%. Observability growth 661 / 581 - 1 = 13.8%; 837 / 661 - 1 = 26.6%; 1,055 / 837 - 1 = 26.0%; 1,095 / 1,055 - 1 = 3.8%; 1,095 / 581 = 1.88 times. Services growth 13,856 / 13,539 - 1 = 2.3% (FY2023); 14,550 / 13,856 - 1 = 5.0%; 15,046 / 14,550 - 1 = 3.4%; FY2016 to FY2026 15,030 / 11,993 - 1 = 25.3%. Services gross profit 10,346 / 40,860 = 25.3% of gross margin. Subscription services 13,663 / 15,030 = 90.9% of services. Non-subscription product 48,295 - 18,314 = 29,981; non-subscription services 15,030 - 13,663 = 1,367. Subscription share 31,977 / 63,325 = 50.5% (FY2026); 31,526 / 56,654 = 55.6% (FY2025); 27,380 / 53,803 = 50.9% (FY2024); subscription growth 31,977 / 31,526 - 1 = 1.4%. Security: 3,382 / 1,969 - 1 = 71.8% (FY2016 to FY2021, older basis); 8,094 / 3,859 = 2.1 times (FY2023 to FY2025); 8,232 / 3,699 = 2.2 times (FY2022 to FY2026). Collaboration 4,300 / 4,823 - 1 = -10.8% against FY2020. Segments: Americas revenue 37,799 / 33,656 - 1 = 12.3%; Americas gross margin 68.2% - 65.1% = 3.1 points (310 basis points); EMEA 16,613 / 14,824 - 1 = 12.1%; APJC 8,914 / 8,174 - 1 = 9.1%. United States revenue 34.4 / 63.3 = 54.3%; outside the United States 63.3 - 34.4 = 28.9 bn; United States growth 34.4 / 30.4 - 1 = 13.2%. AI and orders: Q3 FY2026 hyperscaler orders 5.3 - 1.3 - 2.1 = 1.9 bn; Acacia about 1,000 / 9,791 networking = 10.2%; FY2027 revenue guidance midpoint (72.2 + 73.4) / 2 = 72.8 bn, 72.8 / 63.325 - 1 = 15.0%; AI revenue target 7.5 / 72.8 = 10.3%; price increases 4.5 points / 15 = about a third; Q1 FY2027 gross margin guidance midpoint (65 + 66) / 2 = 65.5%; Q1 FY2027 operating margin guidance midpoint (35.5 + 36.5) / 2 = 36.0%. Security plus observability Q4 FY2026 2,226 + 275 = 2,501. Backlog: remaining performance obligations 46,734 / 63,325 = 73.8% of revenue; short-term 22,776 / 21,723 - 1 = 4.8%; long-term 23,958 / 21,810 - 1 = 9.8%. Purchase commitments 17,165 / 7,599 - 1 = 125.9%; 17,165 / 63,325 = 27.1% of revenue. Inventory 5,694 / 3,164 - 1 = 80.0%. Competitors named in the FY2026 10-K: 18 (Amazon Web Services, Arista, Broadcom, Ciena, CrowdStrike, Datadog, Dell, Dynatrace, Fortinet, Hewlett Packard Enterprise, Huawei, Microsoft, Nokia, Nvidia, Palo Alto Networks, RingCentral, Zoom, Zscaler). Balance sheet, cash flow and market data: Net income 13,267 / 10,180 - 1 = 30.3%; free cash flow 12,767 / 13,288 - 1 = -3.9%; capital spending 1,410 / 905 - 1 = 55.8%; capital spending 1,410 / 63,325 = 2.2% of revenue; free cash flow margin 12,767 / 63,325 = 20.2%; returned 12,659 / 12,767 = 99.2% of free cash flow. Dividends / free cash flow: 6,384 / 10,210 = 62.5% (FY2024); 6,437 / 13,288 = 48.4% (FY2025); 6,553 / 12,767 = 51.3% (FY2026). Dividends per share 1.66 / 0.72 = 2.3 times (FY2014 to FY2026). Buybacks: 117 - 76 = 41 million fewer shares than FY2024; average price 80.26 / 49.45 - 1 = 62.3%; FY2018-FY2026 17,661 + 20,577 + 2,619 + 2,902 + 7,734 + 4,271 + 5,764 + 5,995 + 6,106 = 73,629. Diluted shares 3,987 / 5,146 - 1 = -22.5%. Net income 13,267 / 8,981 - 1 = 47.7%; diluted EPS 3.33 / 1.75 - 1 = 90.3% (FY2015 to FY2026). Net debt 29,533 - 15,918 (cash and investments, about 15.9 bn) = 13,615, about 13.6 bn. Net interest 1,365 - 1,006 = +359 (FY2024); 1,001 - 1,593 = -592 (FY2025); 866 - 1,470 = -604 (FY2026). Goodwill 59,477 / 129,637 = 45.9% of total assets; Splunk goodwill 19,301 / 27,090 = 71.2% of consideration. Employees 82,400 / 90,400 - 1 = -8.8%; R&D 9,563 - 9,300 = +263; sales and marketing 11,559 - 10,966 = +593; R&D 9,563 / 63,325 = 15.1% of revenue; restructuring 693 / 63,325 = 1.1% of revenue. FY2025 net income as released about 10,500 - 10,180 as filed = about 320 (about 0.3 bn); EPS 2.61 - 2.55 = 0.06. Free cash flow yield 12,767 / 421,740 = 3.0%. Price against the 52-week high 106.97 / 130.37 - 1 = -17.9%. P/E 421,740 / 13,267 = 31.8; P/S 421,740 / 63,325 = 6.66. Further: revenue FY2023 to FY2026 63,325 / 56,998 - 1 = 11.1%; HPE and Juniper Ethernet 1.15 / 5.43 = 21.2% of Cisco Ethernet; non-GAAP EPS 4.33 / 3.81 - 1 = 13.6%; FY2026 order forecast 9 / 5 - 1 = 80%; FY2025 AI orders 2.0 / 56.654 = 3.5% of revenue; FY2026 9.3 / 63.325 = 14.7%; product subscription 18,314 / 17,783 - 1 = 3.0%; FY2018 buyback 17,661 / 80.26 = 220 million shares; 76 / 3,946 = 1.9% of shares; revenue FY2024 to FY2026 63,325 / 53,803 - 1 = 17.7%; Arista 2.30 - 2.24 = 0.06 bn; R&D 9,300 / 7,983 - 1 = 16.5% and revenue 56,654 / 53,803 - 1 = 5.3% (FY2025); R&D 9,563 / 9,300 - 1 = 2.8% (FY2026); Q1 FY2027 guidance midpoint 18.1 / 14.883 - 1 = 21.6%; FY2028 consensus P/E 106.97 / 5.62 = 19.0; cash 15.9 / 6.553 = 2.4 years of dividends; services obligations 23,298 / 46,734 = 49.9% and 23,298 / 15,030 = 1.55 years; short-term debt 10,161 / 29,533 = 34.4%; authorisation 8.1 / 6.1 = 1.3 years; product-services margin spread 68.8 - 63.2 = 5.6 points; FY2024 returns (6,384 + 5,764) / 10,210 = 119%; diluted shares 4,254 / 4,881 - 1 = -12.8% (FY2018 to FY2020); buybacks FY2018 and FY2019 17,661 + 20,577 = 38,238; AI revenue 7.5 / 3.8 = 1.97 times; FY2027 GAAP EPS guidance midpoint (4.00 + 4.06) / 2 = 4.03, 4.03 / 3.33 - 1 = 21.0%; G&A 2,761 / 2,992 - 1 = -7.7%; Q4 security 2,226 / 8,232 = 27.0% of the year - balance sheet, cash flow, capital returns and valuation. — FY2015-FY2027 · publ. September 2026 · source ↗
    Method: Arithmetic on figures reported in Cisco's Forms 10-K, quarterly results releases, the Q4 FY2026 call and market data; operands shown in the source line.
  4. ReportedCisco names Broadcom among its competitors.
    Cisco Systems Form 10-K for fiscal 2026 (year ended 25 July 2026) - Item 1A risk factors, competition and legal proceedings. — FY2026 · publ. 2 September 2026 · source ↗
  5. ReportedResearch and development rose about 16.5% in fiscal 2025, when revenue rose about 5.3%, and about 2.8% in fiscal 2026, when revenue rose about 11.8%.
    Cisco Systems Form 10-K for fiscal 2026 (year ended 25 July 2026) - Item 1 business: products, strategy, employees and sales. — FY2026 · publ. 2 September 2026 · source ↗
  6. Moat Explorer calcResearch and development rose about 16.5% in fiscal 2025, when revenue rose about 5.3%, and about 2.8% in fiscal 2026, when revenue rose about 11.8%.
    Moat Explorer calculation from Cisco's reported revenue, margins and financial statements ($ millions unless stated). Revenue growth FY2026 63,325 / 56,654 - 1 = 11.8%; increase 63,325 - 56,654 = 6,671. Networking share 34,668 / 63,325 = 54.7%; of product revenue 34,668 / 48,295 = 71.8%; networking increase 34,668 - 28,304 = 6,364, 6,364 / 6,671 = 95.4% of the revenue increase. Networking against FY2023 34,668 / 34,570 - 1 = 0.3%; FY2024 29,229 / 34,570 - 1 = -15.4% (a fall of 5,341); FY2025 28,304 / 29,229 - 1 = -3.2% (a fall of 925); FY2023 34,570 - 29,265 = +5,305. Other lines FY2026 changes: security 8,232 - 8,094 = +138 (+1.7%); collaboration 4,300 - 4,154 = +146 (+3.5%); observability 1,095 - 1,055 = +40 (+3.8%); services 15,030 - 15,046 = -16 (-0.1%). Product revenue 48,295 / 41,608 - 1 = 16.1%. Shares of FY2026 revenue: services 15,030 / 63,325 = 23.7%; security 8,232 / 63,325 = 13.0%; collaboration 4,300 / 63,325 = 6.8%; observability 1,095 / 63,325 = 1.7%. Observability shares: 581 / 51,557 = 1.1% (FY2022); 661 / 56,998 = 1.2%; 837 / 53,803 = 1.6%; 1,055 / 56,654 = 1.9%. Observability growth 661 / 581 - 1 = 13.8%; 837 / 661 - 1 = 26.6%; 1,055 / 837 - 1 = 26.0%; 1,095 / 1,055 - 1 = 3.8%; 1,095 / 581 = 1.88 times. Services growth 13,856 / 13,539 - 1 = 2.3% (FY2023); 14,550 / 13,856 - 1 = 5.0%; 15,046 / 14,550 - 1 = 3.4%; FY2016 to FY2026 15,030 / 11,993 - 1 = 25.3%. Services gross profit 10,346 / 40,860 = 25.3% of gross margin. Subscription services 13,663 / 15,030 = 90.9% of services. Non-subscription product 48,295 - 18,314 = 29,981; non-subscription services 15,030 - 13,663 = 1,367. Subscription share 31,977 / 63,325 = 50.5% (FY2026); 31,526 / 56,654 = 55.6% (FY2025); 27,380 / 53,803 = 50.9% (FY2024); subscription growth 31,977 / 31,526 - 1 = 1.4%. Security: 3,382 / 1,969 - 1 = 71.8% (FY2016 to FY2021, older basis); 8,094 / 3,859 = 2.1 times (FY2023 to FY2025); 8,232 / 3,699 = 2.2 times (FY2022 to FY2026). Collaboration 4,300 / 4,823 - 1 = -10.8% against FY2020. Segments: Americas revenue 37,799 / 33,656 - 1 = 12.3%; Americas gross margin 68.2% - 65.1% = 3.1 points (310 basis points); EMEA 16,613 / 14,824 - 1 = 12.1%; APJC 8,914 / 8,174 - 1 = 9.1%. United States revenue 34.4 / 63.3 = 54.3%; outside the United States 63.3 - 34.4 = 28.9 bn; United States growth 34.4 / 30.4 - 1 = 13.2%. AI and orders: Q3 FY2026 hyperscaler orders 5.3 - 1.3 - 2.1 = 1.9 bn; Acacia about 1,000 / 9,791 networking = 10.2%; FY2027 revenue guidance midpoint (72.2 + 73.4) / 2 = 72.8 bn, 72.8 / 63.325 - 1 = 15.0%; AI revenue target 7.5 / 72.8 = 10.3%; price increases 4.5 points / 15 = about a third; Q1 FY2027 gross margin guidance midpoint (65 + 66) / 2 = 65.5%; Q1 FY2027 operating margin guidance midpoint (35.5 + 36.5) / 2 = 36.0%. Security plus observability Q4 FY2026 2,226 + 275 = 2,501. Backlog: remaining performance obligations 46,734 / 63,325 = 73.8% of revenue; short-term 22,776 / 21,723 - 1 = 4.8%; long-term 23,958 / 21,810 - 1 = 9.8%. Purchase commitments 17,165 / 7,599 - 1 = 125.9%; 17,165 / 63,325 = 27.1% of revenue. Inventory 5,694 / 3,164 - 1 = 80.0%. Competitors named in the FY2026 10-K: 18 (Amazon Web Services, Arista, Broadcom, Ciena, CrowdStrike, Datadog, Dell, Dynatrace, Fortinet, Hewlett Packard Enterprise, Huawei, Microsoft, Nokia, Nvidia, Palo Alto Networks, RingCentral, Zoom, Zscaler). Balance sheet, cash flow and market data: Net income 13,267 / 10,180 - 1 = 30.3%; free cash flow 12,767 / 13,288 - 1 = -3.9%; capital spending 1,410 / 905 - 1 = 55.8%; capital spending 1,410 / 63,325 = 2.2% of revenue; free cash flow margin 12,767 / 63,325 = 20.2%; returned 12,659 / 12,767 = 99.2% of free cash flow. Dividends / free cash flow: 6,384 / 10,210 = 62.5% (FY2024); 6,437 / 13,288 = 48.4% (FY2025); 6,553 / 12,767 = 51.3% (FY2026). Dividends per share 1.66 / 0.72 = 2.3 times (FY2014 to FY2026). Buybacks: 117 - 76 = 41 million fewer shares than FY2024; average price 80.26 / 49.45 - 1 = 62.3%; FY2018-FY2026 17,661 + 20,577 + 2,619 + 2,902 + 7,734 + 4,271 + 5,764 + 5,995 + 6,106 = 73,629. Diluted shares 3,987 / 5,146 - 1 = -22.5%. Net income 13,267 / 8,981 - 1 = 47.7%; diluted EPS 3.33 / 1.75 - 1 = 90.3% (FY2015 to FY2026). Net debt 29,533 - 15,918 (cash and investments, about 15.9 bn) = 13,615, about 13.6 bn. Net interest 1,365 - 1,006 = +359 (FY2024); 1,001 - 1,593 = -592 (FY2025); 866 - 1,470 = -604 (FY2026). Goodwill 59,477 / 129,637 = 45.9% of total assets; Splunk goodwill 19,301 / 27,090 = 71.2% of consideration. Employees 82,400 / 90,400 - 1 = -8.8%; R&D 9,563 - 9,300 = +263; sales and marketing 11,559 - 10,966 = +593; R&D 9,563 / 63,325 = 15.1% of revenue; restructuring 693 / 63,325 = 1.1% of revenue. FY2025 net income as released about 10,500 - 10,180 as filed = about 320 (about 0.3 bn); EPS 2.61 - 2.55 = 0.06. Free cash flow yield 12,767 / 421,740 = 3.0%. Price against the 52-week high 106.97 / 130.37 - 1 = -17.9%. P/E 421,740 / 13,267 = 31.8; P/S 421,740 / 63,325 = 6.66. Further: revenue FY2023 to FY2026 63,325 / 56,998 - 1 = 11.1%; HPE and Juniper Ethernet 1.15 / 5.43 = 21.2% of Cisco Ethernet; non-GAAP EPS 4.33 / 3.81 - 1 = 13.6%; FY2026 order forecast 9 / 5 - 1 = 80%; FY2025 AI orders 2.0 / 56.654 = 3.5% of revenue; FY2026 9.3 / 63.325 = 14.7%; product subscription 18,314 / 17,783 - 1 = 3.0%; FY2018 buyback 17,661 / 80.26 = 220 million shares; 76 / 3,946 = 1.9% of shares; revenue FY2024 to FY2026 63,325 / 53,803 - 1 = 17.7%; Arista 2.30 - 2.24 = 0.06 bn; R&D 9,300 / 7,983 - 1 = 16.5% and revenue 56,654 / 53,803 - 1 = 5.3% (FY2025); R&D 9,563 / 9,300 - 1 = 2.8% (FY2026); Q1 FY2027 guidance midpoint 18.1 / 14.883 - 1 = 21.6%; FY2028 consensus P/E 106.97 / 5.62 = 19.0; cash 15.9 / 6.553 = 2.4 years of dividends; services obligations 23,298 / 46,734 = 49.9% and 23,298 / 15,030 = 1.55 years; short-term debt 10,161 / 29,533 = 34.4%; authorisation 8.1 / 6.1 = 1.3 years; product-services margin spread 68.8 - 63.2 = 5.6 points; FY2024 returns (6,384 + 5,764) / 10,210 = 119%; diluted shares 4,254 / 4,881 - 1 = -12.8% (FY2018 to FY2020); buybacks FY2018 and FY2019 17,661 + 20,577 = 38,238; AI revenue 7.5 / 3.8 = 1.97 times; FY2027 GAAP EPS guidance midpoint (4.00 + 4.06) / 2 = 4.03, 4.03 / 3.33 - 1 = 21.0%; G&A 2,761 / 2,992 - 1 = -7.7%; Q4 security 2,226 / 8,232 = 27.0% of the year - revenue-line totals, growth and orders. — FY2015-FY2027 · publ. September 2026 · source ↗
    Method: Arithmetic on figures reported in Cisco's Forms 10-K, quarterly results releases, the Q4 FY2026 call and market data; operands shown in the source line.
Sources
Generated September 25, 2026