MACOM Technology Solutions (MTSI) ☆

MACOM is a broad-line analog, RF, microwave and optical semiconductor maker that, unusually for its size, runs its own compound-semiconductor fabs, including a Lowell, Massachusetts fab with Department of Defense “Trusted Foundry” accreditation. Its FY2025 10-K splits the business into Industrial & Defense (radar, electronic warfare, data links, SATCOM, medical and test and measurement), Data Center (TIAs, modulator drivers, lasers and photodetectors for 800G, 1.6T and 3.2T optical transceivers) and Telecom (long-haul and metro optics, 5G, SATCOM and FTTx/PON). The AI build-out has made Data Center the fastest-growing piece: the fiscal Q3 2026 10-Q (https://www.sec.gov/Archives/edgar/data/1493594/000149359426000038/mtsi-20260703.htm) reports Data Center revenue of $137,584 thousand for the quarter against $75,822 thousand a year earlier, out of total revenue of $342,237 thousand, and the accompanying release reports GAAP gross margin of 58.3%. An independent 2024 newsletter places MACOM with Marvell at the front of the optical driver/TIA market and ahead in linear-drive (LPO) optics. The moat stays narrow because each speed generation is re-won through design wins against larger rivals - the 10-K names ADI, Broadcom, Credo, Marvell, MaxLinear, Microchip, NXP, Qorvo, Semtech, Skyworks and Sumitomo, plus Chinese competitors - on purchase orders without minimum commitments, and the filing expects average selling prices to fall over time.

Rating: narrow

MACOM’s FY2025 10-K describes advantages that are real but contested. On the durable side: a catalog of “thousands of standard and custom devices” serving “over 6,000 end customers”; its own compound-semiconductor fabs (GaAs, GaN and InP) in Lowell, Research Triangle Park, Ann Arbor and Limeil-Brévannes; a Lowell fab accredited by the U.S. Department of Defense with “Trusted Foundry” status, in markets where “a domestic fabrication facility may be a requirement to be a strategic supplier”; and product life cycles of five to ten years, “with some of our products generating revenue for over 20 years”. On the limiting side, the same filing calls its markets “highly competitive”, names ADI, Broadcom, Credo, Marvell, MaxLinear, Microchip, NXP, Qorvo, Semtech, Skyworks and Sumitomo among its significant competitors, “some of whom have greater financial resources and scale than us”, adds “increased competition from Chinese companies”, sells “primarily on a purchase order basis” with no minimum purchase commitments, and warns that “the ASPs of our products may decrease over time”. Its income statement reports gross profit of $385,797 thousand on revenue of $648,407 thousand in fiscal 2023, $393,773 thousand on $729,578 thousand in fiscal 2024 and $529,002 thousand on $967,258 thousand in fiscal 2025. Process know-how and defense accreditation that larger rivals can contest, product generation by product generation, is a narrow moat rather than a wide one.

Type: intangibles ip

The FY2025 10-K places the advantage in process and design know-how: “We continue to invest in proprietary processes, circuit design and packaging technologies”, “we utilize a broad array of internal, proprietary process technologies and commercially available foundry technologies”, and U.S.-based wafer fabrication “enables us to offer proprietary processes” and provides “a domestic source for U.S. I&D customers”. The filing itself says patents matter less than people: MACOM held 729 U.S. and 497 foreign issued patents as of October 3, 2025, but “we believe that our future success will be determined by the innovation, technical expertise and management abilities of our engineers and management more than by patent ownership”. Switching costs are the weaker candidate: long product life cycles help in Industrial & Defense, but sales are made on purchase orders and new business must be won through “a competitive selection process to develop semiconductors for use in our customers' systems, known in the industry as a ‘design win.’”

Leadership: fast follower

The only independent ranking found is for the optical analog line. Deep Fundamental’s “Deep Dive: Optical Module Market” of September 27, 2024 (https://deepfundamental.substack.com/p/deep-dive-optical-module-market) states “In the driver/TIA market, Marvell ($MRVL) and Macom ($MTSI) are the dominant players, especially in the high-end 400G+ segment” and “in the LPO market, Macom holds a significant advantage, largely because Marvell, strong in DSP, tends to promote solutions that include DSP”. That is a shared front rank, from an equity-research newsletter rather than a market tracker, and now two years old. MACOM’s own FY2025 10-K claims no rank - it says “We believe that we compete favorably” - and names significant competitors from ADI and Broadcom to Marvell and Sumitomo, “some of whom have greater financial resources and scale than us”. No third-party ranking was found for the Industrial & Defense or Telecom lines. A two-year-old newsletter covering one of three segments cannot carry a company-wide co-leader call, so the band is fast follower.

Pricing power: moderate

The FY2025 10-K says “the ASPs of our products may decrease over time, and we must introduce new products that can be manufactured at lower costs or that command higher prices based on superior performance to offset price erosion”. On inflation it says MACOM has “generally been able to offset increases in these costs through various productivity and cost reduction initiatives, as well as adjusting our selling prices to pass through some of these higher costs to our customers; however, our ability to raise or maintain our selling prices depends on market conditions and competitive dynamics.” Margins have risen with the Data Center mix: the fiscal Q3 2026 earnings release (https://www.sec.gov/Archives/edgar/data/0001493594/000149359426000036/ex99_1earningsreleaseq3fy26.htm) reports GAAP gross margin of 58.3%, compared to 55.3% a year earlier, and guides fiscal Q4 adjusted gross margin to between 60.0% and 61.0%. The release does not say how much of that is price rather than mix or fab utilisation.

Curated moat judgment grounded in the cited source. source: sec.gov

Compare with…

Value-chain position

Layer: networking & interconnect

• Upstream (suppliers): —
• Downstream (customers): —
• Competitors: Semtech, MaxLinear

MACOM sells components that customers build into larger systems - the FY2025 10-K lists wireless basestations, high-capacity optical networks, data center networks, radar, medical systems, satellite networks and test and measurement. In the AI chain it sits upstream of optical-module makers, supplying TIAs, drivers, lasers and photodetectors for 800G and 1.6T transceivers. Sales to distributors were 32.3% of fiscal 2025 revenue, two resellers took 12.4% and 11.2%, and no direct customer reached 10%.

Derived from this company's mapped supply-chain edges and its industry layer.

Signal contribution editorial prior

The moat prior voted +0.06 on the long (~6-month) horizon at weight 0.20 — the swarm call there is neutral (score 0.27, conviction 9).

Editorial prior — subjective, not backtested. It is bounded (±0.6), low-confidence, and never votes on short/medium. See exactly how it voted →

Product lineup

Products & services with an editorial market-share band and technical barrier band — qualitative judgments tied to a cited basis, never invented figures.

What you're looking at

These charts plot MACOM Technology Solutions's reported income statement, cash flow, and balance sheet from its SEC filings through 2026-08-06. Every figure is as-filed XBRL — none of it is an estimate.

Over the reported window, net income at a loss of $54.2M in FY2025.

Our model leans Low-confidence · Neutral on the stock over the medium horizon — a market-direction call, not an earnings forecast. See the Signal tab.

Filings

• 2025Q4 · filed 2026-08-06 source: sec.gov
• 2026Q3 · filed 2026-08-06 source: sec.gov
• 2025Q3 · filed 2026-08-06 source: sec.gov
• 2026Q2 · filed 2026-05-07 source: sec.gov
• 2025Q2 · filed 2026-05-07 source: sec.gov

Key ratios vs peers

Comparing against peers…

Institutional holders (13F, 2026Q2)

TradingPilot-computed columns (% of 13F, % shares out) are derived from as-filed 13F values; only name, shares and value are as-filed.