Teradyne's stock experienced a pre-market soar of 20.01% following the release of its fourth-quarter financial results and first-quarter guidance that significantly exceeded market expectations.

The semiconductor testing equipment maker reported adjusted earnings per share of $1.80 for Q4 2025, beating the consensus estimate of approximately $1.35-$1.38. Revenue came in at $1.08 billion, well above the forecast of around $971-$977 million. The company attributed this strong performance to robust artificial intelligence-related demand in compute, networking, and memory within its semiconductor test business.

Furthermore, Teradyne provided an optimistic outlook for the first quarter of 2026, forecasting revenue between $1.15 billion and $1.25 billion and adjusted EPS in the range of $1.89 to $2.25, both figures substantially surpassing analyst estimates of approximately $934-$938 million in revenue and $1.24-$1.29 in EPS. CEO Greg Smith stated the company expects year-over-year growth across all its businesses in 2026, with strong momentum in compute driven by AI, reinforcing investor confidence in the company's growth trajectory.