UK Watchdog Probes Hotel Giants Over Data-Sharing Concerns

The UK's competition regulator has escalated its scrutiny of the hospitality industry, opening a formal probe into three of the world's largest hotel groups—Hilton, InterContinental Hotels Group (IHG), and Marriott International. The investigation by the Competition and Markets Authority (CMA) centres on concerns that the companies' use of a common market analytics service may have reduced competitive uncertainty, potentially leading to less aggressive pricing in the UK hotel market.

At the heart of the inquiry is the STR platform, operated by CoStar Group, which provides aggregated industry data on metrics like occupancy rates and average daily room prices to subscribing hotels. The CMA will assess whether the detailed, near-real-time benchmarking data exchanged via this service allowed rival operators to effectively anticipate each other's pricing and capacity moves, thereby dampening the competitive dynamics that typically benefit consumers.

"In a healthy market, competitors operate with a degree of uncertainty about each other's next steps. That uncertainty is a key driver of innovation and price competition," a CMA spokesperson noted. "We are examining whether the widespread use of this shared intelligence tool may have inadvertently aligned commercial strategies across major players."

The regulator was careful to state that the investigation is at a preliminary stage and does not imply any breach of law. It will now gather evidence on how the data was collected, shared, and utilised. The probe falls under the Competition Act 1998, which prohibits practices that restrict or distort competition.

This move aligns with a global trend of regulators increasing their focus on data-sharing practices and algorithmic pricing tools. Authorities in the EU and the US have similarly questioned whether sophisticated analytics platforms can facilitate tacit coordination among competitors, even in the absence of explicit collusion.

For the hotel sector, which relies heavily on dynamic, data-driven pricing models, the investigation signals heightened regulatory attention on the digital tools that underpin modern revenue management. If the CMA finds evidence of anti-competitive conduct, it can issue a statement of objections and impose fines of up to 10% of a company's global annual turnover.

All companies involved have stated they will cooperate fully with the CMA. The outcome could set a significant precedent for how market intelligence services are used across travel, hospitality, and other data-intensive industries.

Industry Voices React

Michael Thorne, Hospitality Analyst at Berkeley Capital: "This is a necessary review. The line between legitimate market benchmarking and problematic information exchange has blurred with modern platforms. The CMA needs to clarify where that boundary lies to ensure a level playing field."

Sarah Chen, Owner of a boutique hotel chain in London: "As an independent operator, we've long suspected the major chains had an opaque advantage. This data isn't just for internal analysis—if it's used to signal pricing intentions, it stifles competition. The CMA must act decisively."

David Reeves, Former Revenue Management Director at a global hotel group: "The STR platform is an industry standard for a reason—it brings transparency and efficiency. To frame its use as potentially anti-competitive misunderstands how complex hotel pricing truly is. This feels like regulators chasing headlines."

Priya Sharma, Consumer Rights Advocate: "This is outrageous but unsurprising. For years, travellers have faced mysteriously synchronised price hikes, especially during peak periods. If data sharing is behind it, these companies should face the maximum penalties. It's a covert tax on every family holiday."