The latest data point for TSM's Return on Sales (ROS) in Q4'25 stands at 56.95%, reflecting a robust profitability level compared to earlier periods in the fiscal year. This value indicates sustained operational efficiency, with the metric expressed as a percentage of sales. Over the period from Q2'23 to Q4'25, TSM's ROS exhibits a clear upward trend, starting at 45.29% and climbing steadily to 56.95%, with an acceleration noted from Q3'24 (50.94%) onward. Key highlights include minor fluctuations in early quarters (e.g., a slight dip to 44.86% in Q3'23) followed by consistent growth, suggesting improved margins driven by operational scaling or cost controls; the area chart visualization underscores this progressive accumulation of profitability without significant volatility.