As of Q3'25, ABBV's P/B Ratio stands at -144.421, following a sharp decline from the previous quarter's highly negative value of -1.9K. This negative P/B Ratio is a significant deviation from the earlier quarters, where the ratio peaked at 229.632 in Q1'25 before the dramatic reversal. Analyzing the overall trend from Q1'23 to Q3'25, the P/B Ratio exhibited steady growth from 19.675 to a peak of 229.632 by Q1'25, indicating a strong upward momentum. However, this was followed by an abrupt and extreme drop into negative territory in Q2'25 and Q3'25, suggesting a major shift in the company's book value or market valuation. The data highlights a period of volatility and potential financial distress in the most recent quarters.