Lam Research's stock plummeted 8.18% during intraday trading on Wednesday, as the semiconductor equipment sector faced intense selling pressure.

The decline was part of a broad selloff across technology and semiconductor-related sectors, triggered by disappointing U.S. ADP employment data that came in below expectations. This weak economic report, combined with market uncertainty ahead of upcoming remarks from the Federal Reserve Chair at the European Central Bank forum, weighed heavily on investor risk appetite.

The selloff represents a significant rotation away from technology leaders that had driven major index gains in the first half of the year. Lam Research had been one of the top contributors to Nasdaq-100 returns earlier in 2026, but like other chip and semiconductor equipment stocks, it extended pre-market declines into the regular session as investors took profits and repositioned portfolios.