Google has been ordered to pay nearly $2 billion to Klarna after a Stockholm court ruled the tech giant had illegally favoured its own price comparison service over rivals in search results.

The Stockholm Patent and Market Court ruled on Wednesday that Google had illegally promoted its own comparison shopping tool over Klarna's PriceRunner across the UK, Swedish and Danish markets between 2008 and 2023. The $1.97 billion award, including nearly $500 million in accrued interest, is the largest ever in a Swedish antitrust case, though well short of the $8 billion Klarna had originally sought.

"PriceRunner is considered to have suffered damage as a result of Google having illegally favoured its price comparison service for many years," the court said. Google said it "doesn't agree with the court's decision" and is reviewing its legal options.

Klarna, which acquired PriceRunner in 2022 to build out its shopping and payments ambitions, listed on the New York Stock Exchange in September 2025. Its shares rose 10% in pre-market trading on the back of the ruling, according to the Financial Times, though early-session trading data showed a smaller gain.

The insurance connection

Insurance comparison sites across multiple markets built their dominant positions on exactly the kind of Google search traffic at the centre of the PriceRunner case. In the UK - where the comparison site model is most mature - GoCompare, MoneySuperMarket, Compare the Market and Confused.com now account for over 40% of car insurance purchases. The pattern is replicated, in varying degrees, across Australia, Canada and continental Europe, where aggregators have grown substantially on organic search visibility.

Wednesday's ruling establishes that Google's approach to surfacing its own comparison tools ahead of competitors was illegal, and that the damages from doing so run into billions across 15 years.

After the EU levied a €2.42 billion fine against Google in 2017 for the same behaviour, a wave of European price-comparison companies sued for damages. Several cases remain pending across Europe. The PriceRunner case covers the UK market between 2008 and 2023 - the same period in which the major UK aggregators built their positions. Whether comparison sites in other markets pursue similar claims will depend on the local legal frameworks governing follow-on damages from competition rulings.

What brokers make of it

Comparison sites have been a source of tension in insurance distribution markets since they emerged in the UK in the early 2000s, compressing margins on personal lines and routing customers around brokers who argue those products need specialist advice. As Insurance Business has reported, that tension is sharpening again as MoneySuperMarket launches AI-powered comparison tools inside ChatGPT - a model other comparison sites across multiple markets are watching closely.

Wednesday's ruling will not shrink the comparison site market. But it confirms that the growth of those platforms was partly built on a search environment Google was tilting in its own favour. For brokers who spent 20 years competing against aggregators with that structural advantage, it is a notable finding.

Klarna put it in consumer terms: "This ruling supports a healthier, more competitive market for the way people compare products and services." Competition lawyers across Europe are already working out what to do with it.