The latest data point for VST's Operation Income in Q4'25 shows $474M USD, marking a moderate recovery from the previous quarter's $1.037B USD but remaining below the peak levels observed earlier in the year. This figure reflects ongoing volatility in quarterly performance, with a year-over-year (YoY) decline of -0.21%. Over the period from Q1'23 to Q4'25, Operation Income exhibited significant fluctuations, starting strong at $1.131B USD in Q1'23 before dipping to a low of $86M USD in Q1'24 and surging to a high of $2.588B USD in Q3'24, indicative of robust growth in certain quarters driven by operational efficiencies or market conditions. The YoY growth trended positively in 2023 and early 2024 (peaking at 4.87% in Q4'24) but turned negative in 2025, with declines reaching -2.40% in Q1'25, suggesting emerging pressures such as cost increases or reduced revenues that have led to an overall unstable trajectory despite intermittent recoveries.