Compare moats

Semtech’s FY2026 10-K (fiscal year ended January 25, 2026) supports a narrow moat and no more. On the durable side, it owns the LoRa® radio franchise - “our LoRa® devices and wireless radio frequency technology” - which IoT Analytics’ LPWAN Market 2024 release (https://iot-analytics.com/wp-content/uploads/2024/03/INSIGHTS-RELEASE-LPWAN-Market-2024.pdf) ranks first outside China at 41% of LPWAN connections, and it argues that scarce analog talent “has historically made it more difficult for new suppliers in the analog market to quickly develop products and gain significant market share.” On the limiting side, the same filing says its patents do not “create definitive competitive barriers to entry”, that average selling prices “have historically decreased rapidly”, that some customers “can stop incorporating our products into their own products with limited notice to us and suffer little or no penalty”, and that customers in China (including Hong Kong) were 47% of fiscal 2026 net sales. The record is uneven: its income statement shows gross profit of $296,250 thousand on net sales of $868,758 thousand in fiscal 2024, $456,528 thousand on $909,287 thousand in fiscal 2025 and $542,144 thousand on $1,049,975 thousand in fiscal 2026, and the 10-K says difficulties “have adversely impacted” its ability to realise the benefits of the Sierra Wireless acquisition.

source: sec.gov

Ambarella earns a solid gross margin on its vision chips but has not turned it into GAAP operating profit, and its own filing describes larger rivals and falling prices. The 10-K and 10-Q financial data (as carried in TradingPilot fundamentals) report gross profit of $231,266 thousand on revenue of $390,702 thousand in fiscal 2026 (year ended 2026-01-31), against an operating loss of $82,527 thousand. GAAP operating income was negative in every fiscal year from fiscal 2019 (a loss of $40,420 thousand) through fiscal 2026, including a loss of $154,560 thousand in fiscal 2024. The quarter ended 2026-07-31 still shows an operating loss of $8,143 thousand on revenue of $108,125 thousand (10-Q filed 2026-09-04). The 10-Q's risk factors say 'Many of our competitors are substantially larger'. They say third parties 'have licensed their technology, including image signal processing and computer vision IP, which potentially enables a greater number of competitors to offer competitive solutions', and that average selling prices 'have typically decreased over time and will likely do so in the future'. None rather than narrow, because in no fiscal year since 2019 has the design-win position produced a GAAP operating profit.

source: sec.gov

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.

source: sec.gov

The defensible assets the 10-K describes are intellectual: the LoRa® radio technology, analog and mixed-signal design expertise - “The development of IP and the resulting proprietary products is a critical success factor for us” - and 303 U.S. and 541 foreign patents. The filing itself discounts the patent part (“we do not believe they create definitive competitive barriers to entry”), which leaves the moat in proprietary technology and scarce design know-how rather than in scale or lock-in: Semtech outsources most manufacturing, sold 74% of fiscal 2026 net sales through independent distributors, and its customer agreements “do not require them to purchase a minimum quantity of our products”.

source: sec.gov

The one durable mechanism the 10-Q (2026-09-04) describes is the design socket, and it cuts both ways. 'Once an OEM designs a competitor's device into its product, it becomes significantly more difficult for us to sell our SoC solutions to that OEM because changing suppliers involves significant cost, time, effort and risk for the OEM.' In OEM automotive and robotics, the filing says Ambarella faces 'certain competitive disadvantages in these markets relative to larger competitors that have significantly more resources and a longer history working with OEMs and ODMs'. The risk factors present socket stickiness as protecting whichever supplier wins, say rivals can license image-signal-processing and computer-vision IP, and name no lock specific to Ambarella.

source: sec.gov

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.’”

source: sec.gov

LoRa, the technology Semtech owns, leads outside China; elsewhere Semtech is contesting the front rank. IoT Analytics’ March 21, 2024 release states “When excluding all LPWAN data from China, LoRa has the leading share of global LPWAN connections at 41%—more than double NB-IoT’s share”, though “Globally, NB-IoT has the largest share of LPWAN connections at approximately 54%” and “LoRa’s share of LPWAN connections is decreasing”. In data-center optics, management said on the fiscal Q2 2027 call (TradingKey machine transcript, https://www.tradingkey.com/news/transcripts/262131465-tradingkey) that at “800 gig, we had the market share about 18%. So over the 2 years, we have grown the market share well over 50% for 800 gig”, a company figure; an independent September 2024 newsletter (Deep Fundamental) had instead named Marvell and MACOM “the dominant players” in drivers and TIAs and said Semtech “has struggled to keep pace since the transition to 200G”. A third-party lead measured at the technology level rather than as Semtech’s own share, a company-reported share that the only independent view contradicts, and no ranking for its other lines do not evidence co-leadership, so the band is fast follower.

source: sec.gov

No independent ranking was found. The 10-Q (2026-09-04) names HiSilicon, Novatek, NVIDIA, Qualcomm and SigmaStar as primary IoT competitors. In the automotive camera market it names Horizon Robotics, Mobileye, Novatek, NVIDIA, Qualcomm, Renesas and Texas Instruments. It says many competitors have 'significantly better brand recognition and broader product offerings than us'. It does win sockets at named customers: its largest end customer in fiscal 2027 to date was Insta360 (Arashi Vision), and its top 10 end customers were 'approximately 67%' of fiscal 2026 revenue. It is one supplier among several, conceding scale and, in automotive and robotics, 'competitive disadvantages', so the band is at parity, not leading.

source: sec.gov

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.

source: sec.gov

The 10-K describes a market where prices fall: “In the past, we have reduced the average selling prices of our products in anticipation of future competitive pricing pressures”, and Semtech’s products “are typically differentiated in performance but are priced competitively”. Margins have nonetheless climbed with the data-center mix: the fiscal Q2 2027 release (https://www.sec.gov/Archives/edgar/data/0000088941/000008894126000028/smtc-07262026x8k991.htm) reports GAAP gross margin of 53.8% against 52.1% a year earlier and guides fiscal Q3 adjusted gross margin to 58.3% +/- 100 bps, or 63.9% excluding the business held for sale. The release does not separate price from mix.

source: sec.gov

Gross profit has held at a steady share of revenue. The filed financial data (as carried in TradingPilot fundamentals) show $231,266 thousand on $390,702 thousand in fiscal 2026, $172,330 thousand on $284,865 thousand in fiscal 2025, and $62,416 thousand on $108,125 thousand in the quarter ended 2026-07-31. The 10-Q expects that average selling prices 'will likely' keep decreasing, 'which could harm our revenue and gross margins'.

source: sec.gov

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.

source: sec.gov

Semtech sells mostly through independent distributors (74% of fiscal 2026 net sales) to OEMs. In AI data centers its FiberEdge and CopperEdge parts go into the optical transceivers and active copper cables that module and cable makers build, and the 10-K says hyperscale cloud providers “are generally our indirect customers”. Two customers took 14% and 11% of fiscal 2026 net sales, and customers in China (including Hong Kong) 47%.

Edge-device silicon: vision and AI SoCs designed into cameras and vehicles by ODMs and OEMs, sold mostly through the distributor WT Microelectronics.

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%.

• CopperEdge redrivers for active copper cables Unknown · Moderate source: tradingkey.com
• FiberEdge optical TIAs and drivers Top 3 · Moderate source: tradingkey.com
• IoT routers, gateways and connected services Unknown · Low source: sec.gov
• LoRa devices (LoRa Edge, LoRa Connect, LoRaPLUS) Unknown · Moderate source: iot-analytics.com

• AI vision SoCs for IoT cameras Unknown · Moderate source: sec.gov
• Automotive camera SoCs Challenger · Moderate source: sec.gov

• Optical TIAs and modulator/laser drivers Top 3 · Moderate source: deepfundamental.substack.com
• Photodetectors and lasers for optical transceivers Unknown · Moderate source: marketbeat.com
• RF, microwave and GaN products for Industrial & Defense Unknown · Moderate source: sec.gov
• Telecom optical and RF components Unknown · Moderate source: sec.gov

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