Xchange brief
•Published 18 May 2026
US extended hours trading (EHT): what are the impacts?
US exchanges are expected to begin 24x7 trading for cash equities from December 2026. It’s a transformational shift. What does it entail?
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In this brief
- What is extended hours trading?
- Who is expected to use it?
- What does it mean in practice?
- What issues does it present; e.g. liquidity, supervision, corporate actions
- What happens next and our expectations for growth
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