US Proposed MATCH Act Threatens ASML’s High-Margin China Servicing Revenue

ASML Holding (NASDAQ: ASML) faces a potential escalation in trade restrictions following the introduction of the Multilateral Alignment of Technology Controls on Hardware (MATCH) Act by a bipartisan group of U.S. lawmakers. The legislation marks a strategic shift in how the U.S. approaches semiconductor export controls. Unlike previous restrictions that focused on cutting-edge extreme ultraviolet (EUV) machines, the MATCH Act targets deep ultraviolet (DUV) immersion lithography systems. Most critically, the bill proposes a ban on the servicing of existing equipment already installed in China. Because chipmaking hardware requires constant calibration, software updates, and spare parts, this ban would effectively start a countdown on the utility of China's current semiconductor capacity. Financial exposure is significant, as China represented 33% of ASML's total revenue in 2025, rising to 36% in the fourth quarter of that year. While ASML had already guided investors to expect China's revenue contribution to drop to approximately 20% in 2026, the MATCH Act could force that figure even lower and jeopardize high-margin service contracts. ASML reported total 2025 revenue of €32.7 billion ($38.5 billion) and has provided 2026 guidance between $40 billion and $46 billion. While the company maintains a near-monopoly on EUV technology and long-term global demand remains structurally strong, the immediate legislative risk creates uncertainty for the 2026 upside. The bill currently requires passage through both chambers of Congress and a presidential signature. It includes a 150-day window for allies, specifically the Netherlands and Japan, to implement their own tightening of controls before the U.S. proceeds with unilateral action.