Semtech Corporation (SMTC) Stock Price & How to Invest
Short answer
You can invest in Semtech (SMTC) by buying shares or fractional shares at any major broker, through a semiconductor or AI-hardware ETF that holds it, or as one holding in a thematic basket. Semtech is a mid-cap analog and mixed-signal chipmaker that has re-rated into an AI data center interconnect story on top of its long-standing LoRa Internet-of-Things franchise, so the stock now trades on rich growth expectations rather than value.
SMTC stock price
As of 2026-07-08, Semtech Corporation (SMTC) last closed at $128.84, up 165.6% over the past year. Over the past 52 weeks it has traded between $46.93 and $174.73.
Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or Semtech Corporation's investor relations page. Walnut is informational, not investment advice.
What does Semtech Corporation (SMTC) do?
Semtech Corporation is a US-listed analog and mixed-signal semiconductor company based in Camarillo, California. Its business spans three broad areas: Signal Integrity, which sells high-speed interconnect chips (its CopperEdge active copper cables and FiberEdge and optical products aimed at AI data centers); Analog Mixed Signal and Wireless, which includes the LoRa low-power wireless platform that underpins many Internet-of-Things networks for smart utilities, buildings, and asset tracking; and Protection, which makes circuit-protection devices. The company controls the core LoRa and LoRaWAN standard through its patents and the LoRa Alliance, giving it a durable position in long-range IoT connectivity.
The investment picture is a turnaround-plus-growth story. After a debt-heavy period tied to its 2023 Sierra Wireless acquisition, Semtech has leaned into the AI data center buildout, where demand for 800-gig and next-generation 1.6T copper and optical interconnects has driven record results. Fiscal 2026 revenue reached about $1.05 billion, up 15%, and the stock rose more than 300% over the following year as data center revenue accelerated. That surge left the shares trading at a high multiple of sales and earnings, so the market is pricing in continued rapid growth, and the stock is sensitive to any slowdown in hyperscaler spending or interconnect share.
What's driving Semtech Corporation (SMTC)?
1. AI data center interconnect ramp.
Semtech's fastest-growing engine is Signal Integrity, where its CopperEdge active copper cables and FiberEdge and optical products connect servers and switches inside AI data centers. Data center net sales hit a record of about $71.6 million in the quarter ended April 2026, up roughly 39% year over year. Management expects this business to accelerate further in the back half of fiscal 2027 as 1.6T deployments scale.
2. LoRa IoT franchise.
LoRa is Semtech's long-range, low-power wireless platform used in smart utilities, smart buildings, and asset management, and the company effectively controls the LoRaWAN standard through its patents and the LoRa Alliance. LoRa-enabled sales grew in the low double digits year over year in early fiscal 2027. It gives Semtech a recurring, standards-based franchise distinct from the more cyclical data center demand.
3. Margin and earnings recovery.
Adjusted diluted EPS was about $1.71 for fiscal 2026, up roughly 94% year over year, as higher-value data center mix lifted margins. The company has also been reducing the debt it took on for the Sierra Wireless deal. Continued deleveraging and richer product mix are central to the earnings story.
4. New interconnect product cycles.
Semtech is pushing into 1.6T CopperEdge and FiberEdge, linear pluggable and linear receive optics (LPO and LRO), and photonics, and it has folded in newly acquired optical components. These new product cycles target the highest-bandwidth AI networking sockets. Winning designs at hyperscalers here is what the growth expectations largely depend on.
What are the risks to Semtech Corporation (SMTC)?
Semtech's valuation is stretched, trading at a very high multiple of revenue and earnings after a large run-up, so the shares can fall sharply if growth disappoints. Its data center revenue is concentrated in a small number of hyperscaler and networking customers, and demand for AI interconnect can be lumpy or subject to inventory swings. The company competes with much larger and well-capitalized rivals such as Broadcom and Marvell, plus focused challengers, which pressures pricing and share. Semtech also carries debt from prior acquisitions, and the broader semiconductor industry is cyclical, meaning a downturn in IoT or industrial end markets could weigh on the non-data-center businesses.
How is Semtech Corporation (SMTC) valued? (approximate, JUNE 2026)
A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Semtech Corporation's investor relations page or your broker.
- Revenue (TTM): ~$1.05 billion
- Q1 FY27 net sales: ~$291 million (record, +16% YoY)
- Data center sales (Q1 FY27): ~$71.6 million (record, +39% YoY)
- Adjusted EPS (FY2026): ~$1.71 (+94% YoY)
- Market cap: ~$14.6 billion
- Shares outstanding: ~93 million
Semtech's roughly $14.6 billion market capitalization against about $1.05 billion of trailing revenue works out to a very high multiple of sales, and reported EV/EBITDA has run near 90 times. Those figures reflect a stock that has re-rated on AI data center growth and priced in continued rapid expansion. Any shortfall versus guidance can move the shares meaningfully.
Which ETFs hold Semtech Corporation (SMTC)?
If you want SMTC exposure as part of a larger bundle rather than directly, these ETFs hold it meaningfully. Weights are approximate and refresh quarterly.
| ETF | Name | % in SMTC | Expense ratio | |
|---|---|---|---|---|
| IJR | iShares Core S&P Small-Cap ETF | ~0.8% | 0.06% |
Who competes with Semtech Corporation (SMTC)?
AI data center interconnect
In high-speed signal integrity and interconnect, Semtech competes with much larger players like Broadcom and Marvell, along with MACOM and focused connectivity specialists such as Astera Labs and Credo Technology. This is the most competitive and most valuation-sensitive part of Semtech's business.
IoT and low-power wireless
In long-range and low-power wireless for IoT, Semtech's LoRa platform competes with cellular IoT and other wireless standards, and with chipmakers such as Silicon Labs, STMicroelectronics, and Nordic Semiconductor. Semtech's edge is its control of the LoRaWAN standard.
Analog and protection
In circuit protection and broad analog and mixed-signal components, Semtech competes with firms like Littelfuse, onsemi, Texas Instruments, and Analog Devices. These are larger, diversified analog suppliers with deep customer relationships.
How to invest in Semtech Corporation (SMTC)
There are three common ways to get SMTC exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it (IJR), which spreads the position across many companies. Or build it into a focused thematic basket, so SMTC sits alongside other stocks that express the same thesis.
Walnut takes the basket route. Describe a thesis where SMTC fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.
The bottom line on Semtech Corporation (SMTC)
Semtech is a growth-priced semiconductor name whose thesis rests on data center interconnect share gains and LoRa IoT, which means the stock can move sharply with hyperscaler demand and each quarter's guidance.
More on Semtech Corporation (SMTC)
Whether SMTC is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is SMTC a buy?, and where the stock could go from here in the SMTC stock forecast.
For income investors, whether SMTC pays a dividend and how the payout looks is covered in does SMTC pay a dividend?
Build a basket around SMTC with Walnut
Use Semtech Corporation as one constituent in a thematic basket Walnut's AI helps you assemble. Describe a thesis you believe in, the AI proposes the holdings and weights, and you approve before any broker order.
FAQ
What does Semtech do?
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Semtech is an analog and mixed-signal semiconductor company. It makes high-speed interconnect chips for AI data centers (CopperEdge and FiberEdge), the LoRa low-power wireless platform used in Internet-of-Things networks, and circuit-protection devices.
Is SMTC a data center or AI stock?
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Semtech is not a pure data center company, but its fastest-growing segment sells interconnect chips for AI data centers, and that business is the main reason the stock re-rated. It still earns meaningful revenue from LoRa IoT and protection products.
How has Semtech been performing financially?
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Fiscal 2026 revenue was about $1.05 billion, up roughly 15%, with adjusted EPS near $1.71, up about 94%. In the quarter ended April 2026, Semtech reported record net sales of about $291 million, up 16% year over year, led by data center growth.
Why has SMTC stock risen so much?
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The stock rose more than 300% over roughly a year as its data center interconnect revenue accelerated on AI networking demand for 800-gig and 1.6T products. Investors repriced Semtech from a slower IoT and analog name into an AI hardware growth story.
Is Semtech expensive?
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By most measures, yes. Its roughly $14.6 billion market cap against about $1.05 billion of revenue is a very high sales multiple, and EV/EBITDA has run near 90 times. That reflects high growth expectations and leaves little room for disappointment.
What is LoRa and why does it matter to Semtech?
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LoRa is Semtech's long-range, low-power wireless technology used in IoT applications like smart meters, buildings, and asset tracking. Semtech effectively controls the LoRaWAN standard through its patents and the LoRa Alliance, giving it a durable, recurring franchise separate from data center demand.
Who are Semtech's main competitors?
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In data center interconnect, Semtech competes with Broadcom, Marvell, MACOM, Astera Labs, and Credo. In IoT wireless it competes with Silicon Labs, STMicroelectronics, and Nordic Semiconductor, and in analog and protection with firms like Littelfuse, onsemi, and Texas Instruments.
What are the biggest risks with SMTC?
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The main risks are a stretched valuation that can fall sharply on any guidance miss, concentration in a few large data center customers, intense competition from bigger chipmakers, debt from prior acquisitions, and the general cyclicality of the semiconductor industry.
Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with Semtech Corporation's investor relations page or your broker before making investment decisions.