The latest data point for IONQ's EPS Diluted in Q4'25 shows a positive value of 3.07 USD, marking a significant turnaround from prior quarters and indicating profitability for the first time in the observed period. Over the timeframe from Q1'23 to Q4'25, IONQ's EPS Diluted trended negative overall, starting at -0.14 USD and improving modestly to -0.18 USD by Q2'24 before deteriorating sharply to -0.95 USD in Q4'24 and a low of -3.58 USD in Q3'25, driven by operational challenges in the quantum computing sector. Year-over-year EPS growth remained volatile and mostly negative, with declines peaking at -21% in Q2'23 and -13.92% in Q3'25, but the Q4'25 surge to +4.23% YoY highlights a potential inflection point toward recovery, though sustained positive earnings will be key for analysts to monitor.