The CMA's first-ever Phase 2 referral killed the Pure Gym–Gym Group merger

In February 2014 Pure Gym and The Gym Group agreed to merge their nearly identical budget gym businesses into a 103-site national chain valued around £300m. Pure Gym brought 61 24-hour, no-contract clubs under CCMP Capital Advisors' control; The Gym brought 42 under Phoenix Equity Partners. Pure Gym chief executive Peter Roberts was to become executive chairman, The Gym founder John Treharne its chief executive. They were each other's closest competitor in Britain's fastest-growing fitness segment.

The Competition and Markets Authority opened its merger inquiry on 18 February 2014 and, in Phase 1, found the deal could lessen competition nationally and in 14 local areas, since the two chains' low-price, no-contract, 24-hour formats competed closely wherever they overlapped. It also worried about lost potential competition: without the deal, both chains' expansion plans would have put them head-to-head in more towns. The parties offered undertakings to fix local overlaps, but the CMA said it was not confident they would resolve its concerns in a 'clear-cut manner'.

On 26 June 2014 the CMA referred the merger for an in-depth Phase 2 investigation — the first such referral in the authority's history, its press release noted. The parties declined to fight: a Phase 2 inquiry group was appointed on 1 July, and on 1 August 2014 the merger reference was cancelled because the parties abandoned the deal. The case closed on 11 September 2014, five and a half months after it launched.

Both chains then headed for the stock market on their own. The Gym Group floated in November 2015 at a £250m valuation — below what the merger had implied for the combined business — while PureGym, having also bought LA Fitness clubs along the way, listed in 2016 with a £190m share sale.

A £300m merger of equals died five and a half months in; The Gym later floated at £250m — below the value the combination implied.

The merger was horizontally pure: two near-identical low-cost formats whose clubs overlapped town by town, so remedies could only shuffle clubs between owners without creating a new competitor.

The CMA flagged lost potential competition on top of existing overlaps — the parties' own expansion plans, the raw material of the deal's growth story, were treated as evidence of harm.

Undertakings fell at the first hurdle because the CMA demanded a 'clear-cut' fix at Phase 1, and divesting a few clubs in 14 local areas could not meet that standard.

The referral was the CMA's first-ever Phase 2, issued four months after the authority opened; a newly created regulator had every incentive to look tough, and the parties read that correctly.

Merging your closest rival is the hardest deal to clear. When overlaps are hyper-local and formats identical, no undertaking package is 'clear-cut' — price the fight before you sign.

The abandoned merger pushed both private-equity-owned chains toward separate IPOs. The Gym Group listed on the London Stock Exchange in November 2015 at a £250m valuation, with adjusted earnings of £14.7m for 2014. PureGym floated in 2016, raising £190m to fund expansion after absorbing LA Fitness sites. The budget gym sector kept growing, and both companies remain independent listed rivals — the competition the CMA protected.