Teradyne surges 312% in a year as AI test demand drives growth

Teradyne's semiconductor test equipment has become a bottleneck in the AI supply chain, and investors are pricing in every dollar of that leverage.

Teradyne Inc. generated 70% of its revenue from AI-related demand in the first quarter of 2026, up from 60% in the prior period, as hyperscalers and chipmakers race to test increasingly complex processors for data center buildouts.

"AI-related demand is driving robust growth across both our semiconductor test and robotics divisions," Teradyne management said in its Q1 earnings release, noting that compute-related products now make up roughly 75% of system-on-chip test revenue.

The company's SemiTest segment crossed $1 billion in revenue for the first time, while robotics revenue reached $91 million in Q1, up 32% year over year — an unusual feat for a seasonally weak quarter. Teradyne's Photon 100 platform, designed for silicon photonics and co-packaged optics testing, could expand the company's addressable market by $300 million to $700 million annually over the medium term, management said.

Shares have surged 312% over the past 12 months, far outpacing the Zacks Computer & Technology sector's 43.5% gain and peers such as Advantest (up 163.5%), Cohu (up 160.8%) and KLA Corp. (up 132.6%). The stock traded around $148 in early June, with consensus analyst ratings leaning toward Moderate Buy.

Teradyne's growth reflects a structural shift in semiconductor testing requirements. As chipmakers pack more transistors onto each die and adopt advanced packaging techniques such as TSMC's CoWoS (chip-on-wafer-on-substrate), the complexity of verifying functionality has risen sharply. High-bandwidth memory, or HBM, and DRAM test demand remain strong, and the company is seeing early signs of growth in HDD testing driven by AI-fueled data center storage needs.

The company's robotics division delivered its fourth consecutive quarter of sequential growth, with AI-related applications now accounting for 15% of robotics sales. Teradyne recently showcased a physical AI work cell at Nvidia's GTC event in partnership with Generalist, demonstrating how its autonomous mobile robots and cobots can operate in data center environments for environmental sensing tasks.

Expanding the Robotics Footprint

In April 2026, Teradyne Robotics expanded its collaboration with Flex, a global manufacturing services provider. Flex will deploy Universal Robots cobots and MiR autonomous mobile robots in its own facilities while also manufacturing key robotics components for Teradyne's customers worldwide. Teradyne expects its largest e-commerce customer to triple its revenue contribution in 2026 compared with 2025, which would improve scale and utilization across the robotics segment.

Strategic acquisitions are reinforcing Teradyne's technology moat. The MultiLane Test Products joint venture strengthens capabilities in high-speed I/O and data center interconnect testing, while the acquisition of TestInsight adds design-to-test software that helps customers catch defects earlier in the chip development cycle.

Risks and the Valuation Question

After a 312% run, valuation has become the central debate. The semiconductor industry remains inherently cyclical, and any slowdown in AI capital expenditure by hyperscalers could pressure results. Competition from Advantest in memory test and KLA in process control adds execution risk. Analysts have raised price targets following recent earnings beats, but the elevated multiple leaves limited room for error if growth moderates.

For investors, Teradyne offers direct exposure to the AI infrastructure buildout through a company with pricing power derived from increasing chip complexity. The question is whether the stock's 312% gain has already priced in several years of growth — or whether the Photon 100 platform and robotics expansion can sustain the momentum through the next cycle.

This article is for informational purposes only and does not constitute investment advice.