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MFA urges regulators to evaluate extended hours before moving to 24/7 markets

Regulators should make sure market infrastructure can work around the clock before risking disruption to markets and investors. 
Washington, D.C. — MFA urged the Securities and Exchange Commission (SEC) and the Commodity Futures Trading Commission (CFTC) to evaluate 23/5 trading in equity markets before considering 24/7 trading in a comment letter submitted today. The letter responds to the Commissions’ ongoing consideration of extended trading hours, including the SEC’s September roundtable on 24-hour trading. 
The SEC has approved Nasdaq’s plan to trade stocks 23 hours a day, five days a week. The industry expects the extended hours to launch December 6. MFA supports that transition but cautioned that continuous 24/7 trading would fundamentally change how markets operate and requires a separate regulatory review.
 
“Longer trading hours can help keep U.S. capital markets on the cutting edge, but the infrastructure must match the ambition,” said Bryan Corbett, MFA President and CEO. “Trading 23 hours a day on weekdays is a sensible next step and a real test of market readiness. Regulators should see how markets handle it before moving to around-the-clock trading. Extended hours will only benefit investors if markets remain liquid and stable.” 
Regulators should evaluate the performance of 23/5 trading and publish their findings before considering a move to 24/7 markets. Any further expansion should undergo a separate, comprehensive review with an opportunity for public comment, rather than emerge through a series of individual exchange filings. Three considerations underscore the need for this approach: 
  • Continuous trading would eliminate critical maintenance windows. The 23/5 model preserves daily and weekend breaks that allow financial institutions to maintain systems, resolve problems, and recover from disruptions. Moving to 24/7 trading would eliminate these windows and create new operational risks. 
  • Financial risks could accumulate over weekends. Banks, payment systems, and collateral providers do not operate 24/7. A mismatch could leave market participants unable to settle financial obligations, post collateral, or raise cash when markets are under stress.
  • Overnight liquidity remains thin. SEC staff data show overnight trading made up less than 1% of U.S. stock trading volume in August. Thin trading can lead to wider spreads, less reliable prices, and more room for manipulation. 
Read the full letter here. 
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Managed Funds Association (MFA), based in Washington, D.C., New York City, Brussels, and London, represents the global alternative asset management industry. MFA’s mission is to advance the ability of alternative asset managers to raise capital, invest it, and generate returns for their beneficiaries. MFA advocates on behalf of its membership and convenes stakeholders to address global regulatory, operational, and business issues. MFA has more than 180 fund manager members, including traditional hedge funds, private credit funds, and hybrid funds, that employ a diverse set of investment strategies. Member firms help pension plans, university endowments, charitable foundations, and other institutional investors diversify their investments, manage risk, and generate attractive returns throughout the economic cycle.

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