The latest data point for ABBV's EPS Diluted in Q1'26 stands at 0.39 USD, reflecting a modest decline from the previous quarter's 1.02 USD in Q4'25 and indicating ongoing volatility in earnings performance. Over the period from Q2'23 to Q1'26, EPS Diluted has exhibited a volatile trend with no clear overall direction, starting at 1.14 USD and dipping to a low of -0.02 USD in Q4'24 before recovering somewhat to 1.02 USD in Q4'25. Key declines include a sharp drop in Q4'23 to 0.46 USD and the negative figure in Q4'24, while year-over-year growth has been erratic, with a notable 52% surge in Q4'25 contrasting against multiple contractions such as -66.9% in Q4'23 and -88.6% in Q3'25, suggesting underlying pressures on profitability amid potential one-time factors.