The latest data point for ABBV in Q1'26 shows a P/B Ratio of -53.15. This negative value reflects a significant shift in the company's capital structure or equity position compared to earlier fiscal periods. From Q2'23 to Q1'26, the P/B Ratio exhibited a period of steady growth, followed by extreme volatility and a transition into negative territory. The ratio climbed consistently from 20.62 in Q2'23 to a peak of 229.63 in Q1'25, before dropping sharply to -1.9K in Q2'25. Since that inflection point, the ratio has remained negative but has shown a narrowing trend, moving from -144.42 in Q3'25 to -53.15 in the most recent quarter.