ASML Holding NV's stock plummeted 5.04% during intraday trading on Thursday, marking a significant downward movement for the semiconductor equipment giant.

The decline occurred amid a broad-based sell-off across the semiconductor equipment sector, which had accumulated substantial gains in recent weeks. Despite ASML raising its full-year revenue guidance and receiving a price target increase from Goldman Sachs, the sector faced systemic profit-taking pressure. The Philadelphia Semiconductor Index had already plunged over 5.87% in the prior session, and selling momentum continued as investors took profits after the sector's ETF surged approximately 31% over two weeks.