UK Antitrust Regulator Probes Global Hotel Giants Over Strategic Data Sharing

The CMA investigates Marriott, Hilton, IHG, and CoStar Group's STR platform for potential antitrust violations and sensitive data sharing in the hotel sector.

By: AXL Media

Published: Mar 6, 2026, 5:17 AM EST

Source: Bisnow

The Investigation into Hospitality Data Exchange

The Competition and Markets Authority (CMA) disclosed that it is examining the relationship between major hotel chains and STR, a prominent data benchmarking tool owned by CoStar Group. The central concern of the British watchdog involves the nature of the "sensitive data" exchanged on the platform. Investigators are working to determine if the real-time sharing of occupancy rates, revenue per available room (RevPAR), and pricing data enabled these industry leaders to coordinate commercial decisions, potentially at the expense of consumer choice and fair market pricing.

Regulatory Scrutiny of Benchmarking Platforms

This investigation highlights a growing global trend of regulators scrutinizing third-party data aggregators that serve concentrated industries. The CMA is specifically looking into whether the STR platform functioned as a conduit for "information exchange," a practice that can lead to tacit collusion or price signaling even without a formal agreement between competitors. By analyzing how Hilton, IHG, and Marriott utilized this data, the CMA aims to identify if the transparency provided by STR inadvertently suppressed competitive tension within the UK’s hospitality sector.

Strategic Rationale and Competitive Dynamics

For hotel operators, platforms like STR are historically viewed as essential tools for benchmarking performance against "comp sets" (competitive sets). These analytics allow managers to adjust pricing based on market demand. However, the transformative shift in regulatory perspective suggests that what the industry calls "market intelligence" is increasingly being viewed by authorities as potential "anticompetitive information sharing." If the CMA finds that the granularity of shared data allowed these firms to anticipate each other's moves, it could redefine how the hospitality industry utilizes third-party analytics globally.