The latest data point for KLAC's Return on Sales (ROS) in Q2'26 stands at 0.425%, reflecting a modest quarterly decline from 0.430% in Q1'26 but remaining above the series average. Over the period from Q3'23 to Q2'26, ROS exhibits an overall upward trend with notable volatility, starting at 0.360% and peaking at 0.442% in Q4'25 before a slight pullback. Key growth occurred between Q2'24 (0.308%, the series low) and Q3'25 (0.436%), driven by a 33% rise from the trough, while the area chart highlights sustained improvement in profitability efficiency amid periodic fluctuations.