The NYSE plans to extend its trading hours to 22 hours daily on its Arca platform, aiming to increase market accessibility for international investors and cater to rising interest in U.S. equities. This proposal, driven by technological advancements and global demand, could enhance market liquidity but also introduce challenges such as increased volatility and cybersecurity risks. While the move may pressure other exchanges to follow suit, it raises concerns about regulatory adjustments and the impact of AI-driven trading strategies.