The latest data point for ONTO's Revenue Surprise % in Q4'25 stands at -0.17%, indicating a slight underperformance relative to analyst expectations. Meanwhile, the Revenue Growth (YoY) for the same period is positive at 1.11%, reflecting modest year-over-year expansion in revenue. Over the period from Q1'23 to Q4'25, Revenue Surprise % exhibited volatility, starting with negative surprises averaging around -4% in early 2023, turning positive in Q4'23 through Q2'24 (peaking at 14.47% in Q2'25), before reverting to mild negatives in recent quarters. In contrast, Revenue Growth (YoY) showed a clear inflection from sharp declines of -17% to -26% in 2023 to robust gains exceeding 14% in Q1'24 and peaking at 27.10% in Q2'24, though it moderated to 4.65% in Q2'25 and dipped to -13.49% in Q3'25 before a slight rebound, highlighting a recovery trend tempered by recent fluctuations.