Advantest
ATEYY · OTC · Technology
$204.70
+$5.55 (+2.71%) today
Market Cap
$147.78B
24h Volume
$1.7M
P/E Ratio
61.5
52w High
$237.44
52w Low
$97.27
Est. AI Revenue
55%
7-Day Sparkline (Static)
Company facts
Performance
About Advantest
Advantest builds automated test equipment for the semiconductor industry. Chipmakers and test houses buy its systems to verify that chips work before they ship. The company makes money selling testers, device handling hardware, and related software and services.
Its V93000 platform tests complex SoC devices, including the AI accelerators designed by the largest chipmakers. The T5835 and related memory testers check DRAM and HBM, the stacked memory that feeds AI processors. Advantest Cloud Solutions adds data and software tools around the test floor. AI class chips take far longer to test than ordinary chips, which expands demand for these systems with every accelerator generation.
Founded in 1954 and headquartered in Chiyoda, Japan, Advantest employs about 7,200 people and trades in the US as an OTC ADR under the ticker ATEYY.
Advantest in the AI buildout
Advantest sits in the Chip Equipment layer of the AI buildout. Before an AI accelerator or HBM stack reaches a data center, it passes through test systems that confirm every die and package works. Advantest is one of two dominant suppliers of that equipment, and AI class devices need dramatically more test time than mainstream chips. That makes its order book one of the more direct readouts of AI chip production, sitting downstream of the fabs and upstream of system assembly.
ATEYY is tracked in Chip Equipment & Foundries, rated Core on the AI Exposure leaderboard.
By the numbers
52-week range
ATEYY trades at $204.70, 77% of the way up its 52-week range of $97.27 to $237.44.
Market cap
Market capitalization is $147.78B, with an AI Exposure Score of 78 out of 100.
Valuation vs peers
Its P/E ratio of 61.5 is above the Chip Equipment & Foundries category median of 44.2.
Market data as of the close on . Prices are end of day, not live.
Frequently asked questions
What does Advantest do?
Advantest makes automated test equipment for semiconductors. Its systems verify SoC processors, DRAM, and HBM memory before chips ship, and it sells device handlers, test software, and services around those platforms to chipmakers and test houses worldwide.
How is Advantest exposed to AI?
AI accelerators and HBM memory require far more test time than mainstream chips, and Advantest supplies the testers that qualify them. Supercycle rates it Core with an AI Exposure Score of 78 out of 100, approaching pure play territory.
What are Advantest's main products?
The V93000 platform for SoC test, the T5835 and related memory testers used for DRAM and HBM, device handling hardware, and Advantest Cloud Solutions, a software layer that connects and analyzes data across the test floor.
Who leads Advantest and where is it based?
Douglas Lefever serves as CEO. The company was founded in 1954, is headquartered in Chiyoda, Japan, employs about 7,200 people, and its shares trade in the US as an OTC ADR under ATEYY.
Is ATEYY a pure play AI stock?
Not quite. Supercycle rates Advantest as Core with a score of 78. Test demand today is dominated by AI compute and HBM, but its systems also serve mobile, automotive, and industrial chips, so the business is broader than AI alone.
Profile written 2026-08, updated as the business changes. Editorial content, not investment advice.
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