As of Q4'25, ASML reported a revenue surprise of -3.03% and a year-over-year revenue growth of -9.00%. This marks a reversal from the previous quarter, where the revenue surprise was slightly positive at 2.51%, but revenue growth had already slowed to just 0.65%. From Q1'23 to Q4'25, ASML's revenue surprise percentage exhibited significant volatility, with notable negative surprises in Q3'24 (-14.44%) followed by a sharp positive spike in Q4'24 (25.91%). Year-over-year revenue growth was exceptionally strong in Q1'23 (90.87%) but decelerated rapidly through 2023 and turned negative in early 2024, bottoming at -21.59% in Q1'24. Growth rebounded in the latter half of 2024 and into early 2025, peaking at 46.34% in Q1'25, before declining again by year-end. Overall, the data highlights a period of pronounced revenue volatility and inconsistent performance relative to expectations over the covered period.