The latest data point for COST's P/B Ratio, recorded in Q2'26, stands at 14.09, reflecting a moderate rebound from the previous quarter's low of 12.64 in Q1'26 and indicating sustained valuation above historical averages. Over the period from Q3'23 to Q2'26, the P/B Ratio exhibited strong upward momentum, rising from 9.64 to a peak of 17.16 in Q3'24, driven by consistent growth in subsequent quarters up to Q4'24 at 17.05. However, the trend shifted to volatility thereafter, with a notable decline to 12.64 in Q1'26 before the recent uptick, suggesting potential market pressures or adjustments in investor sentiment toward COST's book value multiples. This area chart highlights an overall bullish trajectory tempered by recent fluctuations, warranting monitoring for sustained recovery.