The latest data point for ONTO's EPS in Q4'25 stands at 0.21 USD, marking a significant decline from the previous quarter's 0.58 USD and representing the lowest value in the observed period from Q1'23 to Q4'25. Over the timeframe from Q1'23 to Q4'25, ONTO's EPS exhibited an overall upward trend through 2024, peaking at 1.07 USD in Q2'24 and Q3'24, before entering a sharp downturn in 2025 with values dropping to 1.3 USD in Q1'25, followed by consistent declines to 0.69 USD, 0.58 USD, and ultimately 0.21 USD. Year-over-year EPS growth was predominantly negative in 2023 (ranging from -44% to -55%), turned strongly positive in 2024 (up to 102% in Q2'24), but reverted to negative territory in 2025, with the steepest drop of -79% in Q4'25, indicating potential challenges in profitability and operational efficiency. This bar chart visualization highlights the volatility, with the line overlay for YoY growth underscoring the shift from expansion to contraction.