As of Q4'25 (2026-01-03), ONTO reported a gross margin of 46.4%, an operating margin of 5.2%, and a net profit margin of 3.9%. These figures represent a notable decline from the previous quarter, particularly in operating and net profit margins. Over the period from Q1'23 to Q4'25, the chart shows that ONTO's gross margin remained relatively stable, fluctuating between 49.3% and 54.1%. However, both operating and net profit margins experienced significant volatility, with peaks in Q1'25 (operating margin at 23.7%, net profit margin at 24%) followed by sharp declines through the remainder of 2025. The most recent quarters indicate a downward trend, suggesting increased cost pressures or reduced profitability in ONTO's operations.