UK CMA Opens Investigation Into Hilton, IHG & Marriott Over Use of Shared Hotel Data Platform

Key Takeaways

• Investigation Launched: The Competition and Markets Authority has opened an investigation into suspected sharing of competitively sensitive information among Hilton, IHG Hotels & Resorts, and Marriott International via the STR analytics tool owned by CoStar Group.
• Focus on Data and Algorithms: The probe centers on whether the use of a shared data analytics provider reduced competitive uncertainty between rival hotel chains in a way that could influence pricing or strategy.
• No Findings at This Stage: The CMA has not concluded that competition law has been breached. The investigation is currently in the information-gathering phase under the Competition Act 1998.
• Third-Party Risk Implications: The case underscores that using external analytics platforms does not shield businesses from competition law liability if competitively sensitive information is effectively shared.

Deep Dive

The UK’s competition watchdog has turned its attention to the hotel sector, opening an investigation into whether some of the world’s largest hotel chains shared competitively sensitive information through a common data analytics platform.

The Competition and Markets Authority announced it is examining suspected information sharing among Hilton, IHG Hotels & Resorts and Marriott International using the hotel data analytics tool STR. The platform is owned by CoStar Group, which is also under investigation. All four businesses are part of the CMA’s probe.

At the heart of the case is a question that regulators globally are increasingly grappling with: when does shared data, even through a third-party provider, cross the line from legitimate market intelligence into unlawful coordination?

The Competition Concern

Data analytics tools are now deeply embedded in modern commercial strategy. Companies use them to track demand, adjust prices and benchmark performance. The CMA itself acknowledged that such tools can deliver clear benefits, including sharper competition, lower costs and faster price adjustments that better reflect supply and demand.

But competition law draws a line where information sharing reduces the normal uncertainty that exists between rivals.

The CMA said information is considered “competitively sensitive” when it reduces competitive uncertainty in the market and is capable of influencing the competitive strategy of other businesses. If competitors gain greater visibility into each other’s pricing intentions or commercial responses, even indirectly through a shared analytics service, it may become easier to anticipate moves and align behaviour.

That potential reduction in competitive tension is what the regulator is now investigating.

No Findings Yet

The CMA was explicit that the launch of an investigation does not mean the law has been broken. The probe will now move into a period of information gathering. If, after reviewing the evidence, the authority reaches a provisional view that competition law has been infringed, it may issue a statement of objections under the Competition Act 1998.

Until then, the case remains at an exploratory stage.

The regulator also confirmed that this investigation is separate from any other proceedings involving the companies in any jurisdiction.

A Wider Technology Focus

The case fits within a broader pattern of scrutiny around algorithms and digital tools. The CMA has previously set out guidance for businesses using algorithms, warning that technology does not dilute competition law obligations.

As more sectors rely on shared data platforms and automated pricing systems, regulators are increasingly focused on whether those systems risk dampening rivalry rather than intensifying it.

The GRC Report is your premier destination for the latest in governance, risk, and compliance news. As your reliable source for comprehensive coverage, we ensure you stay informed and ready to navigate the dynamic landscape of GRC. Beyond being a news source, the GRC Report represents a thriving community of professionals who, like you, are dedicated to GRC excellence. Explore our insightful articles and breaking news, and actively participate in the conversation to enhance your GRC journey.