Teradyne shares surge 6.15% after-hours as Stifel upgrades to Buy, citing AI test market growth and structural revenue shifts.

Teradyne surged 6.15% in after-hours trading following Stifel’s upgrade of the stock to Buy from Hold, accompanied by a raised price target of $225 from $162. The firm cited a structural shift in Teradyne’s test-equipment demand driven by AI networking, AI training/inference, and memory markets, with potential incremental growth from core consumer and smartphone sectors. Stifel highlighted underappreciated positioning in AI accelerators and memory suppliers, noting rising chip-test complexity could accelerate revenue growth as early as 2027. A potential GPU test win at Nvidia, which Stifel stated was progressing, further reinforced optimism. The upgrade, reflecting heightened analyst confidence in long-term growth and market expansion, directly aligned with the stock’s sharp after-hours gain.