The latest data point for ABBV's ROS in Q4'25 stands at 20.00%, marking a significant rebound from the prior quarter's low of 8.74% in Q3'25 and reflecting improved operational efficiency at year-end. Over the period from Q1'23 to Q4'25, ABBV's ROS exhibited volatile trends, starting at 7.58% and peaking at 22.08% in Q2'23 before declining to a notable trough of -10.98% in Q4'24, likely due to one-time charges or cost pressures. Subsequent recovery showed stabilization around 14-18% in early 2025 quarters, with the overall pattern indicating resilience amid fluctuations, though the negative outlier in Q4'24 highlights potential risks in profitability consistency for financial analysts to monitor.