Howdy Folks
Well, as promised (well maybe merely mentioned…), I am expanding my opinion-based, not-a-financial-professional commentary to individual stock discussion. This is not a buy or sell recommendations, this is not financial advice. Consider this as “Hmm, maybe I should research more this myself” kind of information. I am just a guy who likes to talk about the stock market. Lets take a look at one stock that has recently “come across my radar” : AEHR
AEHR a good example of the kind of “picks and shovels” company that shows up whenever there’s a gold rush. Everybody wants to talk about the AI chip designers and the data center builders (I will post about that later). Almost nobody talks about the company that tests whether those chips actually work before they get soldered into a $50,000 car or a server rack that costs more than my house. That’s AEHR’s whole business, and I find it genuinely interesting, so bear with me while I nerd out for a bit.
What AEHR Actually Does
Think of it like this: before a semiconductor chip goes into anything important — an AI server, an electric vehicle’s power inverter, a data center’s optical networking gear — somebody has to stress-test it. Run it hot, run it hard, and find out if it’s going to fail in the first few weeks of its life instead of years down the road. That’s called “burn-in” testing, and it’s a lot cheaper to catch a bad chip on a test bench than after it’s already been assembled into a finished product.
AEHR’s been doing this for over 45 years, based out of Fremont, California. Their systems can test wafers up to 300mm across, with proprietary contactors hitting tens of thousands of individual devices at once. It’s not glamorous. It’s also apparently pretty hard to do well, which is exactly why it’s interesting from an investment-research standpoint.
Why It’s Getting Attention Right Now
Three things are converging on this company at the same time, and that convergence is really the whole story:
- AI data centers. As AI processing scales up, chips generate more data traffic than old-school copper wiring can handle efficiently. The industry’s moving toward silicon photonics — using light instead of electricity to move data between chips. Those optical components still need burn-in testing, and AEHR makes the equipment that does it at the wafer level, before final packaging, which saves manufacturers real money on yield loss.
- Electric vehicles. Silicon carbide (SiC) is replacing standard silicon in EV power inverters because it handles heat better, which means longer range and faster charging. But SiC chips are prone to early failures, and nobody wants that discovered after the chip is already in a car. This was historically AEHR’s bread-and-butter business.
- A genuine mix shift. Here’s the part I find most notable: in fiscal 2026, AI and data-center-related work made up roughly 71% of AEHR’s annual revenue, with silicon photonics contributing about another 20%. Silicon carbide — which used to be the whole story — is now a much smaller slice. That’s a company successfully pivoting toward where the growth is, not just riding a single trend.
The Numbers (Here’s Where I Get Specific)
I’m not going to just wave my hands at “strong growth” — three figures stood out, and all were corroborated across multiple sources:
- Q4 FY2026 revenue (quarter ended May 29, 2026): $18.8 million, up from $14.1 million a year earlier.
- Q4 bookings: a company record of $60.7 million.
- FY2027 revenue guidance: management is projecting $130 million to $150 million — well above the recent backlog of roughly $100.6 million (effective, after subsequent bookings).
The Case For Watching It
- Backlog conversion. A guidance range implying triple-digit percentage growth is a big claim — the real test is whether actual revenue shows up to match it.
- Repeat production orders. When a customer places a second order for the same equipment, that’s a stronger signal than a first one, because it means the equipment actually worked in production.
The Case For Caution
- Customer concentration is significant. AEHR’s own fiscal 2025 10-K disclosed that its five largest customers accounted for roughly 77% of annual revenue, with two individual customers representing about 39% and 15% respectively. A single lost or delayed customer program can swing results hard in either direction.
- Full-year revenue actually declined. Fiscal 2026 revenue was down versus fiscal 2025, even with the strong Q4 bookings and backlog growth — lumpy is the word I’d use.
- It’s a small-cap. AEHR is a small company by market standards, and small-caps can move fast in both directions — that’s part of what makes them exciting and part of what makes them risky. The same size that lets a good quarter send the stock up sharply can just as easily send it down sharply on a disappointing one.
It indeed is “hitting new highs” – one reason I like it. Highs beget higher highs, imagine Tom Brady in his younger years as he transitioned into a star quarterback. See chart:
My Take
I am not a semiconductor analyst, and I want to be upfront that this is me doing homework out loud, not handing down a verdict. What draws my attention to AEHR isn’t any single data point — it’s the combination of a real, diversifying revenue base, order backlog that’s grown faster than the historical top line, and a business model (testing chips before they fail in the field) that gets more relevant, not less, as chips get more expensive and more complex.
Customer concentration risk is real, and small-cap semiconductor-equipment names can move sharply in either direction when guidance changes. If you’re the type of investor who dabbles outside your TSP in individual names — and plenty of federal employees do have brokerage accounts on the side — this is the kind of company worth putting on a watchlist.
Again, none of this touches your TSP allocation — just sharing what’s on my radar. Do your own homework before putting real money behind anything.
This is not financial advice.
Talk to you soon,
-Bill Pritchard













