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SRCThe Guardian - World News
LANGEN
LEANCenter-Left
WORDS400
ENT5
MON · 2026-03-02 · 09:47 GMTBRIEF NSR-2026-0302-20569
News/UK competition watchdog investigates hotel groups over alleg…
NSR-2026-0302-20569News Report·EN·Economic Impact

UK competition watchdog investigates hotel groups over alleged data sharing

The UK's Competition and Markets Authority (CMA) has launched an investigation into Hilton, InterContinental Hotels (IHG), and Marriott, three major hotel chains, over potential anti-competitive data sharing. The investigation centers on the use of data analytics tool STR, owned by CoStar, to share competitively sensitive information.

Lauren AlmeidaThe Guardian - World NewsFiled 2026-03-02 · 09:47 GMTLean · Center-LeftRead · 2 min
UK competition watchdog investigates hotel groups over alleged data sharing
The Guardian - World NewsFIG 01
Reading time
2min
Word count
400words
Sources cited
6cited
Entities identified
5entities
Quality score
100%
§ 01

Briefing Summary

AI-generated
NEWSAR · AI

The UK's Competition and Markets Authority (CMA) has launched an investigation into Hilton, InterContinental Hotels (IHG), and Marriott, three major hotel chains, over potential anti-competitive data sharing. The investigation centers on the use of data analytics tool STR, owned by CoStar, to share competitively sensitive information. The CMA suspects this information sharing could reduce competition and lead to coordinated behavior, potentially harming consumers. The CMA will spend six months gathering information, and IHG shares dropped following the announcement. CoStar and IHG have stated they will cooperate with the investigation. The CMA emphasizes that no conclusions have been reached and the investigation reflects a commitment to ensuring fair competition in the context of new technologies.

Confidence 0.90Sources 6Claims 5Entities 5
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Article analysis

Model · rule-based
Framing
Economic Impact
Legal & Judicial
Tone
Measured
AI-assessed
CalmNeutralAlarmist
Factuality
0.80 / 1.00
Factual
LowHigh
Sources cited
6
Well sourced
FewMany
§ 03

Key claims

5 extracted
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CoStar was surprised at the regulator’s interest in a longstanding hotel data analytics and benchmarking platform.

quoteA spokesperson for CoStar
Confidence
1.00
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At this stage, no assumptions should be made about whether the law has been broken.

quoteThe CMA
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1.00
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Shares in IHG dropped by as much as 5% in early trading on Monday.

factual
Confidence
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The CMA is investigating allegations that the businesses could be sharing information through the data analytics tool STR.

factual
Confidence
1.00
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The UK competition watchdog has opened an investigation into Hilton, IHG and Marriott.

factual
Confidence
1.00
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Full report

2 min read · 400 words
The UK competition watchdog has opened an investigation into three of the world’s biggest hotel chains – Hilton, InterContinental Hotels (IHG) and Marriott – amid suspicions they could be sharing “competitively sensitive” information with each other.The Competition and Markets Authority (CMA) is investigating allegations that the businesses, which together operate more than 25,000 hotels worldwide, could be sharing information through the data analytics tool STR. CoStar, the real estate data firm that owns STR, is also under investigation.While it is common for hotel chains to use data analytics and algorithms to help them set prices, which can improve competition and lower costs, sharing this information with competitors can be harmful to their customers.The watchdog said: “When rival businesses share competitively sensitive information – including through a third-party data analytics provider – this reduces the uncertainty competing businesses normally have about how each other will act.“This can affect how strongly companies compete because it makes it easier for them to predict what each other will do and coordinate their behaviour.”The CMA will spend the next six months gathering information as part of its investigation.Shares in the FTSE 100-listed IHG dropped by as much as 5% in early trading on Monday.CoStar, which is headquartered in Washington DC, provides data on the hotel industry’s standard metrics such as occupancy, average daily rates for rooms and revenue per available room. This makes it easier for hotels to determine room charges and match supply with demand.The CMA said: “At this stage, no assumptions should be made about whether the law has been broken. Following a period of investigation and information gathering, the CMA may issue a statement of objections if it comes to the provisional view that competition law has been infringed.”A spokesperson for CoStar said it was cooperating with the CMA but that it was “surprised” at the regulator’s interest “in a longstanding hotel data analytics and benchmarking platform, that for decades has been used by companies and government entities alike to better assess market dynamics”.A spokesperson for IHG, which is headquartered in Windsor, England, and has more than 400,000 staff around the world, said the company would cooperate fully with the CMA’s inquiries.The regulator said its investigation reflected a wider commitment to ensuring “new technologies” supported fair competition and did not harm consumers. In November, the regulator opened investigations into eight companies about their online pricing practices.Hilton and Marriott were approached for comment.
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Entities

5 identified
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Keywords & salience

10 terms
data sharing
0.95
competition watchdog
0.90
investigation
0.85
hotel chains
0.80
cma
0.80
competitively sensitive information
0.75
data analytics
0.70
str
0.60
price fixing
0.60
competition law
0.50
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Topic connections

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