About a-team Marketing Services
The knowledge platform for the financial technology industry

A-Team Insight Blogs

Nasdaq Suspends High-Speed Trading Service Amid Regulatory Scrutiny

Subscribe to our newsletter

Nasdaq has halted a high-speed trading service following concerns raised by competitors and regulatory scrutiny from the U.S. Securities and Exchange Commission (SEC). The service, which offered select clients access to lower-latency hollow-core fiber optic cables, was not publicly disclosed and had not undergone the SEC’s rule-filing process.

Low-latency network provider McKay Brothers brought the issue to the attention of regulators, alleging that Nasdaq had been offering the service to certain colocation clients for an additional monthly fee of $10,000. This undisclosed latency advantage, McKay argued, created an uneven playing field and contradicted regulatory requirements for transparency and fairness in exchange access.

In response, Nasdaq announced that it would discontinue the service. The decision highlights the competitive and regulatory pressures faced by exchanges as they seek to provide advanced trading infrastructure while maintaining compliance with market rules.

Sylvain Thieullent, CEO at Horizon Trading Solutions, shared his thoughts with TradingTech Insight on the broader implications of such technological advancements: “The trading environment has developed to a point where securing marginal gains is critical to success. Whether this is through faster execution speed achieved via infrastructure or technological upgrades, systems that can perform better during periods of high volatility, or the provision of additional insights into pre-trade analytics, traders are always looking for an edge.”

Nasdaq has also outlined plans to upgrade its data centre infrastructure, including an “Equalization Project” intended to standardise latency across colocation customers. The move is aimed at addressing concerns about preferential access while ensuring that technological improvements benefit all market participants equitably.

As exchanges continue to navigate the balance between innovation and regulatory compliance, the scrutiny over Nasdaq’s service serves as a reminder of the ongoing debate surrounding market fairness and the role of speed in trading competition.

Subscribe to our newsletter

Related content

WEBINAR

Upcoming Webinar: Post-Trade Transformation: Automating Clearing & Settlement

Date: 1 December 2026 Time: 10:00am ET / 3:00pm London / 4:00pm CET Duration: 50 minutes The UK, EU and Swiss markets move to T+1 settlement on 11 October 2027, but the first binding compression arrives almost a year earlier. ESMA’s amended settlement discipline RTS expects allocation and confirmation completed by 23:00 CET on trade...

BLOG

The Low-Latency Race Shifts from Speed to Scale and Control

For years, the evolution of low-latency trading infrastructure has largely been measured in one direction: faster. Microseconds became nanoseconds as trading firms invested in colocation, network optimisation, specialist hardware and FPGA acceleration to gain an edge in markets where position in the queue can determine whether an order is filled. That race hasn’t gone away....

EVENT

ExchangeTech Summit London

A-Team Group, organisers of the TradingTech Summits, are pleased to announce the inaugural ExchangeTech Summit London on May 14th 2026. This dedicated forum brings together operators of exchanges, alternative execution venues and digital asset platforms with the ecosystem of vendors driving the future of matching engines, surveillance and market access.

GUIDE

Hosted/Managed Services

The on-site data management model is broken. Resources have been squeezed to breaking point. The industry needs a new operating model if it is truly to do more with less. Can hosted/managed services provide the answer? Can the marketplace really create and maintain a utility-based approach to reference data management? And if so, how can...