As of Q4'25 (2025-12-31), IONQ reported a diluted EPS of 1.93 USD, marking a significant turnaround from previous quarters. The latest year-over-year EPS growth rate surged to 303.16%, indicating a strong positive shift in profitability. Over the period from Q1'23 to Q4'25, IONQ's diluted EPS exhibited considerable volatility, with persistent negative values until Q4'25. Notably, there were sharp declines in Q3'25 (-3.58 USD) and Q2'25 (-0.7 USD), followed by a dramatic recovery to positive territory in Q4'25. The EPS growth rate mirrored this volatility, with several negative spikes and a substantial positive inflection at the end of the period, suggesting a potential inflection point in the company’s financial performance.