Aehr Test Systems (AEHR) Stock Price & How to Invest
Short answer
You can invest in Aehr Test Systems (AEHR) by buying shares or fractional shares at any major broker, through an ETF that holds it, or as one holding in a thematic basket. Aehr makes semiconductor test and burn-in systems, a specialized niche in the chip supply chain: its FOX wafer-level and package-level systems screen chips for reliability before they ship. The thesis is that Aehr is diversifying from electric-vehicle silicon carbide, where demand has softened, toward AI processor, data center, and silicon photonics burn-in, a market it believes is several times larger. The biggest risks are heavy customer concentration, the EV/SiC slowdown, and the lumpy, cyclical nature of a small-cap equipment supplier.
AEHR stock price
As of 2026-06-26, Aehr Test Systems (AEHR) last closed at $91.81, up 633.3% over the past year. Over the past 52 weeks it has traded between $12.52 and $116.58.
Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or Aehr Test Systems's investor relations page. Walnut is informational, not investment advice.
What does Aehr Test Systems (AEHR) do?
Aehr Test Systems, headquartered in Fremont, California, designs and sells semiconductor test and burn-in equipment. Its FOX-P platform (FOX-XP and FOX-NP systems, plus WaferPak full-wafer contactors and DiePak carriers) performs wafer-level and singulated-die test, burn-in, and stabilization, processes that stress chips at elevated voltage and temperature to weed out early-life failures before the parts reach customers. Aehr also added ultra-high-power Sonoma systems for package-level burn-in of high-wattage devices. The company is one of the few suppliers offering both wafer-level and package-level burn-in across silicon carbide, gallium nitride, AI processors, silicon photonics, and flash memory.
What's driving Aehr Test Systems (AEHR)?
1. AI and data center diversification.
Aehr has pivoted its growth story from electric-vehicle silicon carbide toward burn-in of AI processors, custom ASICs, and data center chips. It reported a record production order from a lead hyperscale AI customer and second-half bookings exceeding $92 million, with management estimating that only roughly 5% of ASICs and about 50% of AI accelerators currently undergo production burn-in, framing the AI processor opportunity as several times larger than its historical silicon carbide market.
2. Silicon photonics and optical interconnect.
As AI clusters scale, optical interconnects and co-packaged optics need reliability screening. Aehr has won and received follow-on orders from silicon photonics customers for fully automated wafer-level burn-in systems serving hyperscale data center optical interconnect, a newer end market that broadens its demand base beyond power devices.
3. New device markets: GaN.
Aehr secured its first gallium nitride (GaN) production order from a leading automotive semiconductor supplier, extending its addressable market beyond silicon carbide into another fast-growing power-device material. GaN and silicon photonics together give Aehr multiple wafer-level burn-in markets rather than a single concentrated one.
4. Installed base and consumables.
Each FOX system uses WaferPak full-wafer contactors and DiePak carriers specific to a customer's device, which can drive repeat consumable and follow-on orders as a customer ramps volume. A growing installed base of systems across SiC, AI, GaN, and photonics customers is the mechanism Aehr is counting on to make revenue less lumpy over time.
What are the risks to Aehr Test Systems (AEHR)?
Customer concentration is heavy: a small number of large semiconductor manufacturers drive most revenue, so the loss or delay of a single program can swing results materially. The electric-vehicle and silicon carbide demand that powered prior years has softened, and management has stayed conservative about a SiC recovery. As a small-cap capital-equipment supplier, Aehr's orders are lumpy and tied to customers' capex cycles, which has already produced sharp year-over-year revenue declines and quarterly losses. The AI diversification is promising but still early and unproven at scale.
How is Aehr Test Systems (AEHR) valued? (approximate, Q3 FY2026 (reported April 2026))
A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Aehr Test Systems's investor relations page or your broker.
- Revenue (Q3 FY2026): ~$10.3 million, down ~44% year over year from ~$18.3 million
- Revenue (FY2025, prior fiscal year): ~$59.9 million
- Gross margin (Q3 FY2026): ~33% GAAP, ~37% non-GAAP, down on lower volume and mix
- Net income (Q3 FY2026): GAAP net loss of ~$3.2 million, or ~$0.10 per share
- P/E ratio: Not meaningful; trailing twelve months were unprofitable
- Market cap: ~$2 billion to $3 billion range in 2026, highly volatile
- Dividend yield: 0%; Aehr does not pay a dividend
- Backlog: ~$38.7 million exiting Q3, with effective backlog around a record ~$50.9 million including early Q4 bookings
Aehr's results are choppy: Q3 FY2026 revenue fell about 44% year over year and the company posted a loss as silicon carbide softened, even while AI and data center bookings hit records. Because trailing earnings were negative, the P/E is not meaningful and the market cap reflects expectations for the AI pivot rather than current profits. All figures are approximate as of the dates noted and refresh each quarter; verify against Aehr's investor relations page or your broker.
Who competes with Aehr Test Systems (AEHR)?
Semiconductor test and burn-in specialists
Aehr competes in the niche of reliability test and burn-in. Peers and adjacent suppliers include Cohu, which provides test handlers, contactors, and burn-in solutions, along with various specialized burn-in board and system vendors. Aehr's differentiation is offering both wafer-level and package-level burn-in across SiC, GaN, AI processors, silicon photonics, and flash memory.
Larger automated test equipment (ATE) makers
The broader chip-test market is dominated by far larger automated test equipment companies such as Teradyne and Advantest, which sell system-level testers for logic and memory. These firms operate at much greater scale than Aehr and address different points in the test flow, though they shape the competitive and pricing environment for chip test overall.
In-house and alternative screening
A structural competitor is the option for chipmakers to screen reliability with their own internal methods or to skip production burn-in entirely. Aehr's growth case depends partly on burn-in becoming more standard for AI accelerators and ASICs, where management estimates only a minority of parts are burned in today.
How to invest in Aehr Test Systems (AEHR)
There are three common ways to get AEHR exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic basket, so AEHR sits alongside other stocks that express the same thesis.
Walnut takes the basket route. Describe a thesis where AEHR 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 Aehr Test Systems (AEHR)
If you believe production burn-in becomes a standard, growing requirement for AI accelerators, custom ASICs, and silicon photonics, and that Aehr can convert its early AI bookings into recurring revenue the way it once did with silicon carbide, then Aehr Test Systems (AEHR) is a focused way to express that view. It is a small-cap, project-driven equipment supplier whose revenue swings with a handful of large customers' capital cycles, so most holders treat it as a high-volatility, single-theme position sized inside a broader basket rather than a core holding.
More on Aehr Test Systems (AEHR)
Whether AEHR 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 AEHR a buy?, and where the stock could go from here in the AEHR stock forecast.
For income investors, whether AEHR pays a dividend and how the payout looks is covered in does AEHR pay a dividend?
Build a basket around AEHR with Walnut
Use Aehr Test Systems 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 Aehr Test Systems do?
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Aehr Test Systems makes semiconductor test and burn-in equipment. Its FOX-P platform performs wafer-level and singulated-die test, burn-in, and stabilization, stressing chips at elevated voltage and temperature to catch early-life failures before parts ship. It serves silicon carbide, gallium nitride, AI processors, silicon photonics, and flash memory customers, and added Sonoma systems for high-power package-level burn-in.
What is AEHR's ticker symbol and where is it listed?
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The company trades as AEHR on the Nasdaq, officially Aehr Test Systems, headquartered in Fremont, California. It is a small-cap stock available at every major US brokerage with commission-free trading, and many brokers also offer fractional shares so you can invest a fixed dollar amount.
Is AEHR a good stock to buy right now?
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Descriptive, not a recommendation. The bull case is Aehr's diversification from softening EV silicon carbide into AI processor, data center, GaN, and silicon photonics burn-in, with record AI bookings and a large estimated runway. The bear case is heavy customer concentration, recent revenue declines and losses, and the lumpy, cyclical nature of a small-cap equipment supplier. Whether it fits depends on your goals and risk tolerance. Walnut is informational, not investment advice.
Does AEHR pay a dividend?
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No. Aehr Test Systems does not pay a dividend, so its yield is 0%. As a small-cap company reinvesting in its business and navigating a cyclical equipment market, it is not an income stock; any return would come from share-price changes rather than dividends. The figure is current as of the dates noted; verify against Aehr's investor relations page.
How does Aehr benefit from AI?
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As AI processors, custom ASICs, and optical interconnects scale, more of them may need production burn-in to ensure reliability. Aehr supplies the wafer-level and package-level systems that do this, and has reported record orders from a lead hyperscale AI customer plus silicon photonics wins. Management estimates only a minority of AI accelerators and ASICs are burned in today, which it frames as the growth opportunity.
Why did Aehr's revenue and silicon carbide business decline?
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Aehr's revenue had been concentrated in silicon carbide power devices used in electric vehicles. As EV demand softened, silicon carbide orders slowed, and Q3 FY2026 revenue fell about 44% year over year with a quarterly loss. Management has stayed conservative on a SiC recovery, noting only early upticks in Japan and Germany, while leaning on AI and data center bookings to offset the weakness.
What is wafer-level burn-in and why does it matter?
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Burn-in stresses chips at high voltage and temperature to force early-life defects to fail before the parts reach customers. Wafer-level burn-in does this across an entire wafer at once using full-wafer contactors, which can be more efficient than testing packaged parts. It matters most for devices where reliability is critical, such as power semiconductors and AI processors used in long-running data center workloads.
Which ETFs or funds hold AEHR?
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As a small-cap semiconductor stock, AEHR appears in small-cap and semiconductor-focused index funds and ETFs rather than large-cap megacap funds, typically at small weights. Holdings shift as funds rebalance, so check a specific ETF's current holdings list with its provider before assuming exposure. Buying the stock directly gives the most concentrated exposure to Aehr's specific test and burn-in thesis.
Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with Aehr Test Systems's investor relations page or your broker before making investment decisions.