The latest data point for ONTO's revenue in Q4'25 shows $266.87M USD, marking a modest year-over-year growth of 1.11% and a strong sequential rebound from the $218.19M USD reported in Q3'25. Over the period from Q1'23 to Q4'25, revenue trended upward overall, rising from $199.17M USD to a peak of $266.87M USD, with consistent quarterly growth through Q3'24 (reaching $252.21M USD) driven by positive YoY rates up to 27.10% in Q2'24. However, a slowdown emerged in 2025, with Q3'25 experiencing a sharp 13.49% YoY decline to $218.19M USD amid volatility, before recovering in Q4'25; this pattern highlights robust expansion in 2023-2024 followed by fluctuations potentially tied to market conditions in the semiconductor sector.