The latest data point for ONTO's Operation Income in Q1'26 shows $33.5M USD, reflecting a decline from the previous quarter's $13.9M USD in Q4'25 and marking a year-over-year decrease of -46.9%. This represents the second-lowest quarterly figure in the period, following a sharp drop in late 2025. From Q2'23 to Q1'26, Operation Income started at $24.8M USD and exhibited volatile growth, peaking at $63.1M USD in Q1'25 before a consistent downward trend through Q4'25, with YoY growth turning negative from Q2'25 onward (reaching -67.4% in Q4'25). Significant inflection points include a surge from Q4'23 ($28.2M USD) to Q2'24 ($48.8M USD) with positive YoY up to 96.9%, followed by stabilization around $42M-$53M USD in mid-2024, and then sharp declines averaging -50% YoY in the latter half, indicating potential cyclical pressures in operations. Overall, the bar chart reveals an initial upward trajectory giving way to recent contraction, warranting monitoring for recovery signals.