As of Q4'25, ONTO's latest data shows an ROA of 0.44%, ROE of 0.50%, and ROIC of 0.35%. These figures represent a significant decline from previous quarters, marking the lowest levels observed in the period covered. From Q1'23 to Q1'25, all three metrics—ROA, ROE, and ROIC—generally trended upward, peaking in Q1'25 (ROA at 3.03%, ROE at 3.34%, and ROIC at 2.90%). However, starting in Q2'25, there is a sharp and consistent decline across all ratios, culminating in the substantial drop by Q4'25. This pattern suggests a period of strong operational performance followed by a notable deterioration in profitability and capital efficiency toward the end of the observed timeframe.