Core Viewpoint - Teradyne (TER) reported Q4 2025 earnings with revenue of $1.083 billion, a year-over-year increase of 43.8% and a quarter-over-quarter increase of 40.8%, significantly exceeding expectations. The gross margin was 57.2%, in line with previous guidance, while operating profit reached $314 million, up 92.6% year-over-year and 100% quarter-over-quarter [3][4]. Revenue Performance - Q4 2025 revenue was $1.083 billion, driven by strong demand in AI computing and storage, with over 60% of revenue coming from the AI sector. The gross margin was 57.2%, down 2.2 percentage points year-over-year and 1.3 percentage points quarter-over-quarter. Operating profit was $314 million, reflecting a 92.6% year-over-year increase and a 100% quarter-over-quarter increase [3][4]. - The semiconductor testing segment generated $883 million in Q4 2025, a 57.4% year-over-year increase and a 45.7% quarter-over-quarter increase, driven by AI computing and storage demand. The storage testing revenue reached $206 million, a record high for the quarter, with a 61% quarter-over-quarter increase [4][5]. Business Segment Analysis - Semiconductor Testing: Q4 2025 revenue was $883 million, with SoC testing revenue at $647 million (up 47% quarter-over-quarter) and storage testing revenue at $206 million (up 61% quarter-over-quarter). The segment is expected to achieve a 19% year-over-year growth in 2025 [4][5]. - Product Testing: Q4 2025 revenue was $110 million, a 17% year-over-year increase and a 25% quarter-over-quarter increase, driven by strong demand in defense and aerospace sectors. The segment is projected to grow 8% in 2025 [4][5]. - Robotics: Q4 2025 revenue was $89 million, down 9.2% year-over-year but up 18.7% quarter-over-quarter, with over 5% of revenue coming from a major e-commerce client. The segment is expected to see growth starting from Q2 2025 [4][5]. Guidance and Market Outlook - For Q1 2026, the company expects revenue between $1.15 billion and $1.25 billion, with a midpoint year-over-year increase of 74.9% and a quarter-over-quarter increase of 10.8%. Over 70% of this revenue is anticipated to come from AI [5][6]. - The company aims for a total addressable market (TAM) of $12-14 billion for ATE in 2026, with expected growth rates of 20%-40% for the broader market. The semiconductor testing segment is projected to grow faster than the ATE market [5][6]. Financial Metrics - Q4 2025 operating expenses were $306 million, with an operating profit margin of 29%. Free cash flow was $219 million, with $204 million returned to shareholders through stock buybacks and dividends [3][13]. - For the full year 2025, total revenue was $3.2 billion, a 13% year-over-year increase, with a gross margin of 58.3% and an EPS of $3.96 [13][14]. Market Drivers - Key growth drivers include AI data center coverage, long-term growth in automotive and industrial sectors, increased complexity in mobile devices, and the expansion of physical AI applications in advanced robotics [17][25].