The latest data point for ASML's P/E Ratio in Q1'26 stands at 39.94, reflecting a moderate decline from the previous quarter's peak of 52.04 in Q4'25, yet remaining above the series average amid ongoing market volatility in the semiconductor sector. Over the period from Q2'23 to Q1'26, the P/E Ratio exhibits a volatile upward trend overall, starting at 34.22 and reaching highs of 50.00 in Q2'24 before dipping to a low of 25.76 in Q1'25; notable inflection points include a sharp rise to 52.04 in Q4'25, signaling strong investor optimism, followed by the recent pullback, which may indicate cooling expectations or valuation adjustments in response to economic factors.