By Jim Toes, President and CEO, STA

Conversations about the benefits of competition in the U.S. capital markets almost always begin with investor choice and end with lower costs. Those benefits are real and well documented. Too little credit, however, is given to a quieter contribution: competition is one of the most reliable engines of operational resiliency.

That point was on display at the recent SEC Roundtable on Preparations for 24-Hour Trading. The day featured three panels and 27 participants drawn from a cross section of the functions that will have to work as equity markets move toward near-continuous trading.

Resiliency was given its own panel, which focused on systems readiness, Regulation SCI, failover and capacity planning, market-data continuity, shortened maintenance windows, cybersecurity, and overnight staffing. Panelists came from multiple exchanges, ATSs, market makers, and broker-dealers that compete with one another every day. That mix matters. When rivals describe how they intend to keep markets orderly after the close, they are comparing different architectures, different risk-management cultures, and different points of failure. A problem at one firm does not automatically become a market-wide event if others remain open and able to absorb flow.

While it is good that the SEC is fulfilling its role of investor protection, fostering competition can never be overstated for its contribution to resiliency. Resiliency is not only a regulatory outcome. It is also a competitive one. Competitive markets force participants to innovate around single points of failure, to maintain spare capacity, and to treat operational excellence as a product feature rather than a compliance requirement.

As U.S. equity markets prepare for 23-by-5 trading and, potentially, further expansion, the lesson from the roundtable is straightforward. The firms that will thrive and attract capital in a 24-hour environment will be those that treat uptime, data integrity, and risk controls as sources of advantage. Policy that preserves competition will do as much for market stability as any single rule.