Overview
- Reports from Bloomberg and The Information that a Chinese state‑backed firm has started mass production of deep ultraviolet (DUV) lithography machines triggered the shock to markets on Monday.
- Semiconductor stocks led the sell‑off with the PHLX Semiconductor Index down about 4.3% and major names such as ASML and Nvidia falling more than 4%, which pushed the Nasdaq into negative territory.
- Oil prices fell more than 5% after a temporary U.S.‑Iran pause lifted hopes of lower near‑term energy costs and eased some inflation pressure that matters for Fed policy.
- Investors now face a pivotal week with the Federal Reserve meeting on Wednesday and heavyweight tech earnings due that will test whether heavy AI capital spending can still justify lofty valuations.
- DUV lithography is a key manufacturing bottleneck historically dominated by Western firms, so domestic Chinese production raises new questions about the effectiveness of export controls and the future shape of global chip supply chains.