The latest data point for ABBV's PEG Ratio in Q4'25 stands at 0.06, indicating a marginally positive valuation relative to earnings growth, a notable recovery from the deeply negative reading of -6.80 in the prior quarter. Over the period from Q1'23 to Q4'25, the PEG Ratio has exhibited high volatility, fluctuating between a low of -6.80 in Q3'25 and a peak of 42.35 in Q2'24, with no consistent upward or downward trend but frequent swings across negative and positive territories. Early quarters like Q1'23 (-3.25) and Q3'23 (-3.02) showed undervaluation signals, while mid-period spikes in Q2'24 and Q4'24 (35.00) suggested overvaluation concerns; the recent downturn to -6.80 in Q3'25 before rebounding highlights ongoing instability in ABBV's growth expectations amid market dynamics.