As of Q4'25, UnitedHealth Group's (UNH) P/B Ratio stands at 3.00, marking a significant decrease from previous quarters. This latest data point reflects a continued downward trend in valuation relative to book value, following the sharp drop observed since Q2'25. From Q1'23 to Q2'24, the P/B Ratio remained relatively stable, fluctuating between 5.18 and 5.84. However, starting in Q4'24, the ratio began to decline more rapidly, dropping from 4.63 in Q4'24 to a low of 2.41 in Q2'25, before partially recovering to 3.00 by Q4'25. This trend indicates a notable shift in market sentiment or underlying fundamentals, with the most pronounced decline occurring in 2025. The area chart highlights this transition from stability to a marked decrease over the observed period.