The latest data point for ONTO's EPS Diluted in Q4'25 stands at 0.21 USD, marking a significant decline from the previous quarter's 0.57 USD and representing the lowest value in the observed period. Over the timeframe from Q1'23 to Q4'25, EPS Diluted exhibited an initial upward trend, rising from 0.59 USD in Q1'23 to a peak of 1.3 USD in Q1'25, driven by strong year-over-year growth rates exceeding 100% in Q2'24. However, the metric turned sharply downward thereafter, with Q4'25 showing a -78.6% YoY decline, indicating volatile performance and potential challenges in sustaining profitability amid decelerating growth from Q2'25 onward. This bar chart visualization highlights the contrast between early expansion and recent contraction, underscoring the need for monitoring underlying operational factors.