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Find HBM-adjacent small-cap stocks

HBM-adjacent small-caps: probe cards, test, packaging, materials. Researched by Semibadger.

Find HBM-adjacent small-cap stocks is a Semibadger research list. We trawl the world's exchanges for HBM-adjacent small-cap stocks — names that trade below a $5 billion market cap, often well below, and that have a credible angle into the AI-infrastructure build-out: chips, packaging, power, optics, cooling, nuclear, or the materials that underpin all of it.

Why bother with the small end of the market? Because the obvious winners — the trillion-dollar names — are already priced for perfection. The interesting risk-reward sits with the suppliers, the picks-and-shovels, and the regional specialists most people have never heard of. Some of these will be duds. A handful might be tomorrow's headlines.

Every ticker on this page links through to a full profile with a 5-year chart, headquarters, sector, an AI-expanded "what they do" description and the badger's one-line take. Treat it as a starting point for your own research, not a buy list. Nothing here is financial advice.

30 stocks the badger sniffed out

AEHR

US

Aehr Test Systems

🦡 Wafer-level burn-in for SiC and AI chips

🔬 Testing & Metrology🧠 Semiconductors
~$0.5bn cap · open profile →

PLAB

US

Photronics

🦡 One of two independent photomask makers

🧠 Semiconductors⚗️ Materials & Chemicals
~$1.2bn cap · open profile →

COHU

US

Cohu Inc

🦡 Back-end test handlers & contactors

🔬 Testing & Metrology🧠 Semiconductors
~$1.2bn cap · open profile →

FORM

US

FormFactor

🦡 Probe cards — riding HBM and advanced nodes

🔬 Testing & Metrology🧠 Semiconductors
~$2.5bn cap · open profile →

AXTI

US

AXT Inc

🦡 Compound-semi substrates: InP, GaAs, Ge

⚗️ Materials & Chemicals🧠 Semiconductors
~$0.1bn cap · open profile →

CAMT

US

Camtek

🦡 Wafer-inspection riding HBM & advanced packaging

🔬 Testing & Metrology🧠 Semiconductors
~$4.0bn cap · open profile →

ATOM

US

Atomera

🦡 MST film tech IP licensing — pre-revenue

🧠 Semiconductors⚗️ Materials & Chemicals
~$0.2bn cap · open profile →

VPG

US

Vishay Precision Group

🦡 Strain gauges & precision resistors

🔬 Testing & Metrology🧠 Semiconductors
~$0.3bn cap · open profile →

IVAC

US

Intevac

🦡 Hard-disk & display PVD tools

🔬 Testing & Metrology🧠 Semiconductors
~$0.2bn cap · open profile →

IQE.L

UK

IQE plc

🦡 Welsh compound-semi epi-wafer specialist

🧠 Semiconductors⚗️ Materials & Chemicals
~$0.2bn cap · open profile →

SOI.PA

EU

Soitec

🦡 Engineered SOI wafer leader — RF & power

🧠 Semiconductors⚗️ Materials & Chemicals
~$3.5bn cap · open profile →

WAF.DE

EU

Siltronic

🦡 German 300mm silicon wafer manufacturer

🧠 Semiconductors⚗️ Materials & Chemicals
~$1.5bn cap · open profile →

2449.TW

Asia

King Yuan Electronics

🦡 Largest Taiwan IC test house — AI tailwind

🔬 Testing & Metrology🧠 Semiconductors
~$1.0bn cap · open profile →

6271.TW

Asia

Tong Hsing Electronic

🦡 Ceramic substrates & image-sensor packaging

⚗️ Materials & Chemicals🧠 Semiconductors
~$0.4bn cap · open profile →

ERO

Canada

Ero Copper

🦡 Brazilian copper pure-play, expansion mode

🧵 Copper & Cabling⚗️ Materials & Chemicals
~$1.5bn cap · open profile →

HBM

Canada

Hudbay Minerals

🦡 Diversified copper + zinc miner, US expansion

🧵 Copper & Cabling⚗️ Materials & Chemicals
~$4.0bn cap · open profile →

NDA.DE

EU

Aurubis

🦡 European copper smelter & recycler

🧵 Copper & Cabling⚗️ Materials & Chemicals
~$4.5bn cap · open profile →

KCO.DE

EU

Klöckner & Co

🦡 European steel & metal distribution

🧵 Copper & Cabling⚗️ Materials & Chemicals
~$1.0bn cap · open profile →

HEX.OL

EU

Hexagon Composites

🦡 Composite pressure vessels for hydrogen & CNG

Power & Electrification⚗️ Materials & Chemicals
~$0.5bn cap · open profile →

LEU

US

Centrus Energy

🦡 Only US HALEU enrichment producer

☢️ Nuclear & Clean⚗️ Materials & Chemicals
~$2.5bn cap · open profile →

UEC

US

Uranium Energy Corp

🦡 Largest US in-situ uranium producer

☢️ Nuclear & Clean⚗️ Materials & Chemicals
~$3.0bn cap · open profile →

UUUU

US

Energy Fuels

🦡 Uranium + rare-earth processing two-fer

☢️ Nuclear & Clean⚗️ Materials & Chemicals
~$1.5bn cap · open profile →

ASPI

US

ASP Isotopes

🦡 Enriched-isotope tech for nuclear & medical

☢️ Nuclear & Clean⚗️ Materials & Chemicals
~$1.0bn cap · open profile →

BMI

US

Badger Meter

🦡 🦡 Water metering & flow — DC cooling water monitoring

🧊 Data Centres & Cooling🔬 Testing & Metrology
~$3.7bn cap · open profile →

CWCO

US

Consolidated Water

🦡 Desalination & water — DC water supply angle

🧊 Data Centres & Cooling⚗️ Materials & Chemicals
~$0.5bn cap · open profile →

PCYO

US

Pure Cycle

🦡 Water rights & utility — DC siting water access play

🧊 Data Centres & Cooling⚗️ Materials & Chemicals
~$0.3bn cap · open profile →

NOVT

US

Novanta

🦡 Precision photonics + medical motion control

🔬 Testing & Metrology💡 Optical & Photonics
~$4.5bn cap · open profile →

INTT

US

inTEST Corporation

🦡 Niche thermal & front-end test for semis

🔬 Testing & Metrology🧠 Semiconductors
~$0.1bn cap · open profile →

6754.T

Asia

Anritsu

🦡 5G/6G test gear & optical comms measurement

🔬 Testing & Metrology
~$1.5bn cap · open profile →

USAR

US

USA Rare Earth

🦡 Round Top heavies + magnet plant in Texas

⚗️ Materials & Chemicals
~$1.0bn cap · open profile →

More research lists

Semibadger maintains 150 small-cap AI-infrastructure research lists. Back to the main burrow.