The latest data point for ONTO's EPS Surprise % in Q4'25 stands at -1.56%, indicating a negative surprise relative to analyst expectations and marking a downturn from the prior quarter's 2.91%. Meanwhile, the EPS Growth (YoY) for the same period is -78.79%, reflecting a substantial year-over-year contraction in earnings. Over the period from Q1'23 to Q4'25, EPS Surprise % has shown volatility, starting with a modest 4.55% positive surprise, dipping to -4.82% in Q2'23, and peaking at 10% in Q2'24 before fluctuating with negatives in Q2'25 and Q4'25, suggesting inconsistent outperformance against forecasts. In contrast, EPS Growth (YoY) exhibited a sharp recovery from deep negatives around -44% to -55% in 2023 to strong positives exceeding 58% in Q1'24 and over 101% in Q2'24, but has since reverted to declines, with the most recent quarters showing contractions of -35.51% in Q2'25 and -78.79% in Q4'25, highlighting a return to challenging growth dynamics after a brief upswing.