As of Q4'25, ASML's latest P/E Ratio stands at 42.63, reflecting a notable increase from the previous quarter's value of 35.54. This recent uptick suggests renewed investor optimism or potentially higher earnings expectations as the year closes. Over the period from Q1'23 to Q4'25, ASML's P/E Ratio has exhibited significant volatility, with pronounced peaks in Q2'24 (50.00) and Q4'23 (43.15), and a sharp dip to 25.76 in Q1'25. The ratio generally trended upward through 2023 and the first half of 2024, followed by a steep decline in early 2025 before rebounding in the latter half of the year. This pattern indicates fluctuating market sentiment and possible shifts in earnings performance or valuation multiples during the observed timeframe.