Nasdaq to introduce overnight trading session from 9 PM to 4 AM ET starting December 2026

Nasdaq will introduce an overnight trading session from 9 PM to 4 AM ET starting December 2026, moving toward a nearly 23-hour trading day. This expansion follows approval from the SEC and aims to enhance global market access for international investors. While the move could reshape global trading dynamics, it may present challenges regarding liquidity, infrastructure, and volatility, necessitating careful regulatory oversight to manage the impact on the broader financial ecosystem and market stability.