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Aehr Test Systems (AEHR) — chart, structure and Closelook read

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Company snapshot — Aehr Test Systems

AEHR in five paragraphs: what it makes and sells, where it sits in the Closelook stack, who it is priced against, why we track it, what we watch. Research diary, not advice.

What it does
Aehr Test Systems builds wafer-level and package-level test and burn-in machines, running under names such as FOX-XP, FOX-NP and FOX-CP, that stabilise semiconductors before shipment. Its systems check silicon-carbide and gallium-nitride power chips, image sensors, memory, processors and photonics devices used in AI hardware. Customers are semiconductor manufacturers, contract assemblers and dedicated burn-in test houses. It is based in Fremont, California.
Where it sits in the stack
In our index, the Rubin Build-Out 100, Aehr sits in Layer 3, Assembly & Test, within the Testing & Metrology sleeve. That sleeve is the constraint that keeps yield curves honest as nodes shrink, and Aehr's burn-in step is where power and sensor chips prove they survive real operating stress before leaving the fab.
Who it is priced against
Closelook's peer group places it with the Testing & Metrology names — Teradyne, Onto Innovation, KLA, Camtek, PDF Solutions, Cohu, Nova and Advantest — vendors whose tools and inspection gear keep yields honest at every shrink.
Why Closelook tracks it
Aehr is a Rubin Build-Out 100 constituent and carries a Closelook score, strongest on momentum and weakest on quality. The diary has quoted its share moves twice in the Midday 10, both times on outsized single-session swings for a smaller semiconductor-adjacent name.
What the diary watches
Whether demand for burn-in on silicon-carbide, gallium-nitride and AI photonics devices keeps building, since the diary has seen the shares move sharply on both up and down sessions.

Aehr Test Systems (AEHR) trades on US exchanges, classified under Technology, and sits in Layer 3 of the build-out stack. Constituent of Rubin Build-Out 100.

The Closelook company score reads 39/100 composite (momentum 56, quality 12, valuation 23) across 7 modules — the full breakdown, chart structure and analog history load live above.

Written from the company’s public profile and Closelook’s own readings, 2026-09-17. Descriptive, refreshed with the registry; corrections welcome via the imprint. closelook.net is an investment research diary — market structure, index membership and scores are our own readings, not investment advice. Related: index compare · sector dispersion · scanner.

Signals for this name

Every Closelook reading that exists for AEHR, from the same nightly bakes the boards use. Research diary readings, not advice.

The Street on this name 2 analyst actions on the wire · latest: initiation by Oppenheimer, 2026-09-10

The Street on this name

Analyst actions and the latest print for AEHR from the Closelook wires — third-party opinions on the record, not our readings.

  • Initiation Oppenheimer — at Outperform · target 120 Initiated to Outperform · Target set to $120 (+25.6% to spot) 2026-09-10
  • Initiation Jefferies — at Buy · target 175 Initiated to Buy · Target set to $175 (+41.9% to spot) 2026-08-13

2 actions on the analyst wire since 2026-08-13: 2 initiations. Analyst wire → · Earnings wire →

Who it is priced against Rubin Build-Out 100 · Testing & Metrology · 8 names with week and year-to-date

Peer group

Rubin Build-Out 100 · Testing & Metrology

ATE testers, inspection, and metrology vendors. The constraint that keeps yield curves honest at every node shrink.

  • TERTeradyne Inc
    day
    +2.5%
    vs 50d
    −6.3%
    off high
    −30.1%
    score
    56

    flow: losing force

  • ONTOOnto Innovation Inc
    day
    −0.2%
    vs 50d
    −14.5%
    off high
    −37.0%
    score
    54

    flow: losing force

  • KLACKLA Corporation
    day
    −0.4%
    vs 50d
    −14.0%
    off high
    −45.5%
    score
    50

    flow: losing force

  • CAMTCamtek Ltd
    day
    +2.9%
    vs 50d
    −5.7%
    off high
    −35.8%
    score
    41

    flow: losing force

  • PDFSPDF Solutions Inc
    day
    +1.3%
    vs 50d
    −12.6%
    off high
    −41.5%
    score
    41

    flow: losing force

  • COHUCohu Inc
    day
    +2.2%
    vs 50d
    −1.8%
    off high
    −31.6%
    score
    40

    flow: losing force

  • NVMINova Ltd
    day
    +1.2%
    vs 50d
    −14.9%
    off high
    −44.9%
    score
    40

    flow: losing force

  • 6857.TAdvantest
    day
    +1.8%
    vs 50d
    −4.2%
    off high
    −20.7%
    score
    —

    flow: losing force

Compared against AEHR on the nightly bakes; the Peers tab ranks the cohort on the Closelook scores where it exists.

Versus its index Rubin Build-Out 100 — the name, its sleeve and the index over day, week and month

Versus its index

The name against its Closelook index and its own sleeve — equal-weight, nightly closes.

Rubin Build-Out 100 · as of 2026-09-16

DayWeekMonth3 months
AEHR+3.3%−11.8%−42.1%−19.6%
Testing & Metrology+1.8%−7.3%−13.1%—
Rubin Build-Out 100+1.9%−5.3%−7.4%—

Against the index: 6.5 pts behind on the week, 34.7 pts behind on the month; against its Testing & Metrology sleeve 29.0 pts behind on the month.

Returns from the index workers’ nightly closes; equal-weight sleeves. A relative reading from the research diary, not advice.

Weather around the name 4 macro readings: Money Temperature, Factor regime, Sector × region …

The weather around this name

Macro readings that apply by membership — the regime, the factor tape, the sector cell, the funding backdrop.

  • Money Temperature Composite 45/100 · S&P 500 fund at 42, above its 200-day averageEight instruments scored on position, momentum, volume, volatility and fragility — the regime every name trades inside. Temperature lab → 2026-09-16
  • Factor regime Momentum leadership cooling, still above trendMomentum against low volatility (SPMO / SPLV): above its 50-day trend, 91th percentile of the window, -0.7% over 20 sessions. Factor regime → 2026-09-16
  • Sector × region Technology in US: −2.1% week · −3.4% month · −1.2% quarter · +32.1% yearThe Sector Engine cell this name lives in, from XLK.US; the 11 × 4 matrix shows where its sector is being bought and where it is being sold. Sector Engine → 2026-09-16
  • Sovereign pressure Index 0.17 · up 0.22 over 21 sessionsG7 long-end yields, 10s30s and the slope — the funding weather for every balance sheet on this site. Sovereign pressure → 2026-09-16

FAQ · from the current data · as of 2026-09-17

Quick answers

What is Aehr Test Systems (AEHR)?

Aehr Test Systems trades as AEHR on the US exchange (US) and is classified under Technology in the Closelook research universe, as of the registry build of 2026-09-17.

Is AEHR in a Closelook index?

Yes — Aehr Test Systems is a constituent of Rubin Build-Out 100, as of 2026-09-17.

What is Aehr Test Systems's Closelook composite score?

39 out of 100, with momentum 56, quality 12 and valuation 23 sub-scores, as of 2026-09-17. Scores are Closelook's own research readings, not ratings or investment advice.

Where does AEHR trade against its moving averages?

Resizing — 42.8% off its high: 42.8% below its 52-week high — a deeper resizing of the trend, not a shallow dip. As of 2026-09-16 — a technical state from the nightly Closelook bake, not advice. The Technical tab carries the full row.

How is AEHR doing against its Closelook index?

Over the past month Aehr Test Systems is −42.1% against −7.4% for the Rubin Build-Out 100 — 34.7 points behind its index, as of 2026-09-16. Its Testing & Metrology sleeve is −13.1% over the same month. The “Versus its index” table on this page carries the day, the week and the month for the name, its sleeve and the index.

What does Aehr Test Systems do?

Aehr Test Systems builds wafer-level and package-level test and burn-in machines, running under names such as FOX-XP, FOX-NP and FOX-CP, that stabilise semiconductors before shipment. Its systems check silicon-carbide and gallium-nitride power chips, image sensors, memory, processors and photonics devices used in AI hardware. Customers are semiconductor manufacturers, contract assemblers and dedicated burn-in test houses. Closelook's peer group places it with the Testing & Metrology names — Teradyne, Onto Innovation, KLA, Camtek, PDF Solutions, Cohu, Nova and Advantest — vendors whose tools and inspection gear keep yields honest at every shrink.

Where does Aehr Test Systems sit in the AI build-out?

In our index, the Rubin Build-Out 100, Aehr sits in Layer 3, Assembly & Test, within the Testing & Metrology sleeve. That sleeve is the constraint that keeps yield curves honest as nodes shrink, and Aehr's burn-in step is where power and sensor chips prove they survive real operating stress before leaving the fab. Aehr is a Rubin Build-Out 100 constituent and carries a Closelook score, strongest on momentum and weakest on quality. The diary has quoted its share moves twice in the Midday 10, both times on outsized single-session swings for a smaller semiconductor-adjacent name.

What has Wall Street done on Aehr Test Systems recently?

The most recent analyst action on Aehr Test Systems on the Closelook wire is a initiation by Oppenheimer on 2026-09-10 (at Outperform · target 120). 2 actions on the analyst wire since 2026-08-13: 2 initiations. Analyst actions are third-party opinions recorded by the wire, not Closelook readings. The “The Street on this name” block on this page lists the moves; the full feeds are the analyst wire and the earnings wire.

Where has Closelook written about Aehr Test Systems?

Aehr Test Systems appears in 2 Closelook pieces, most recently Midday 10: Semis get rejected at the overhead line — SOXX -6.1%, SMH back below its 50-day — while the new sovereign-bond watch says this selloff isn't a rates story (2026-08-18); Midday 10: Flat tape, crushed vol — the market has pre-decided CPI while the morning's printers get sorted (2026-08-11). What Closelook said most recently: AEHR drops 15.42% to 123.16 by midday, a sharp single-session move that adds to the semiconductor-adjacent pain visible across the board today. (Midday 10, 2026-08-18). The "Mentioned on Closelook" block on this page lists the long reads, the reference entries and the dailies that name it.

What does this page show?

A live price chart with SMA overlays and drawing tools for AEHR, performance metrics, index-membership context and the Closelook structure read — an investment research diary view, not investment advice.

Mentioned on Closelook 2 pieces · newest: Midday 10, “Semis get rejected at the overhead line — SOXX -6.1%, SMH back below its 50-day — while the new sovereign-bond watch says this selloff isn't a rates story” (2026-08-18)

Mentioned on Closelook

Where AEHR appears in the diary — 2 pieces, newest first. Every link is our own writing.

Dailies

Related in the Closelook universe