Subject: File No. 4-913
From: Brendan Lynn

I am writing to submit a public comment in connection with File Number 4-913, regarding the Commission's roundtable on preparations for 24-hour trading in U.S. equity markets. I strongly support the move toward round-the-clock trading. Technology has fundamentally transformed how markets function - electronic execution, real-time data, and global connectivity have made continuous trading not just possible, but increasingly the norm. Asset classes like cryptocurrency and foreign exchange already trade 24/7, and international equity markets are moving in the same direction. U.S. equity markets should not be left behind. Given how far trading infrastructure has advanced, there's no longer a strong technological reason to confine equity trading to a six-and-a-half-hour window. Expanding trading hours would also better serve investors outside U.S. time zones and those whose schedules don't align with the traditional 9:30 a.m. to 4:00 p.m. session. A 24-hour market reflects a more modern, accessible structure that meets investors where they are, rather than requiring them to work around a schedule set in a pre-digital era. I recognize this transition raises real questions around overnight liquidity, market surveillance, operational resiliency, and investor protection, and I don't take those lightly. But these are implementation challenges to solve, not reasons to delay a shift that the market and available technology both support. I appreciate the Commission's decision to hold this roundtable and seek public input, and I encourage you to move forward with a well-considered plan to bring 24-hour trading to U.S. equity markets.