The latest data point for COST's Operating ROA metrics in Q2'26 shows ROE at 6.34%, ROA at 2.43%, and ROIC at 4.54%, reflecting a modest quarterly uptick in ROA from Q1'26 but declines in ROE and ROIC compared to the prior period. Over the period from Q3'23 to Q2'26, ROE has exhibited volatility with peaks at 9.97% in Q4'24 and 8.95% in Q4'25, interspersed with dips below 7% in recent quarters, indicating inconsistent equity efficiency. ROA has remained relatively stable around 2-3%, with notable spikes to 3.37% in Q4'24 and 3.39% in Q4'25, suggesting steady but low asset utilization. ROIC displays a similar fluctuating pattern, reaching highs of 7.53% in Q4'24 and 7.11% in Q4'25 before declining to 4.54% in Q2'26, highlighting periodic improvements in capital returns driven by operational leverage but overall downward pressure in the latest stages.