The Filing That Puts Post-Acquisition Pricing on Trial
When UK High Court filings became public on 17 June 2026, they revealed what enterprise IT managers across Britain had suspected for two years. Tesco, the UK's largest retailer, is suing Broadcom, VMware, and reseller Computacenter for approximately £100 million each, alleging that Broadcom's conduct following its $69 billion VMware acquisition constitutes an abuse of a dominant market position. Tesco is simultaneously migrating 40,000 server workloads off VMware — targeting completion by the end of 2027 — in the most visible and costly corporate repudiation of Broadcom's post-acquisition pricing strategy to date.
The dispute centres on a January 2021 Enterprise License Agreement under which Tesco purchased perpetual VMware licenses with support running through January 2026 and an option to extend for four further years. After Broadcom closed the VMware deal in November 2023, it discontinued standalone support renewals for perpetual licenses, conditioning continued patching and technical assistance on customers migrating their entire estates to new, bundled subscription packages. When Broadcom presented Tesco with a renewal proposal in April 2026 — $23.5 million annually for VMware Cloud Foundation 9.0 and mainframe software — Tesco characterised it as roughly a 175 percent increase on original VMware terms and a 350 percent increase on mainframe products. The filing describes Broadcom's approach as "abusive, 'take it or leave it', long-term and bundled."
Broadcom's Case Deserves a Fair Hearing
Before dismissing Broadcom's pricing strategy, the strongest case for it deserves acknowledgement. Broadcom paid $69 billion for VMware. Perpetual licenses — under which a customer pays once and receives indefinite support — are structurally incompatible with the returns a leveraged acquisition of that scale demands. The company argues that subscription models are now the industry standard across enterprise software, that they fund continuous R&D rather than freezing customers on a static release, and that pricing is set by commercial negotiation, not regulatory fiat. Enterprise customers had also been on notice since early 2024 that perpetual renewals were ending. The claim of complete surprise sits uneasily with Tesco's own IT sophistication.
Chapter II and the Lock-In Argument
The competition law argument in Tesco's filing is legally distinct from a complaint about price levels alone. The Chapter II prohibition of the Competition Act 1998 bars conduct by a dominant undertaking that amounts to an abuse of that dominance where it may affect trade in the UK — including, explicitly, the imposition of unfair trading conditions or excessive prices. VMware runs approximately 60 percent of the world's virtualisation workloads. That is not merely a large market share; it is the kind of structural dominance that brings Chapter II squarely into play.
Tesco's argument is not simply that prices rose. It is that Broadcom exploited technological lock-in — its software controls logistics, stock management, replenishment, and payments systems across most Tesco stores, making migration a multi-year undertaking — to extract prices that bear no reasonable relationship to the value delivered. The voidance of a contractually agreed perpetual support term strengthens that framing: this is not a dominant firm raising market prices, but one allegedly using its installed-base leverage to rewrite existing contracts in its own favour.
Chapter II distinguishes between lawful high pricing and exploitative pricing by a dominant firm against locked-in counterparties. That distinction is exactly what the court will need to draw.
The CMA's 2023 Clearance Now Looks Narrow
The Competition and Markets Authority cleared Broadcom's acquisition of VMware without conditions on 21 August 2023 following a Phase 2 investigation. The CMA's primary concern was hardware foreclosure: could Broadcom use VMware's software dominance to restrict rivals' server chips? The panel found that the financial cost of doing so outweighed the benefit, and cleared the deal unconditionally.
What the CMA did not model with comparable rigour was pricing conduct risk — the scenario in which an acquirer would simply restructure the licensing terms of its installed base to maximise extraction from customers who had no rapid exit. This is not necessarily a regulatory failure in the traditional sense; merger control is prospective and cannot fully anticipate every post-close commercial decision. But it illustrates a structural gap: CMA clearance provides no assurance that an acquirer's subsequent conduct toward existing customers remains within legal bounds. The cleared acquisition is now the factual backdrop to what may be the most significant private Chapter II enforcement case in UK software history.
The AT&T lawsuit filed in New York in late 2024 alleged a 1,050 percent price increase on VMware licenses and sought injunctive relief to preserve support. Tesco's filing brings the same pattern before English courts, where the Chapter II abuse standard — rather than US state contract law — will govern the merits.
What Comes Next
The trial window runs from November 2027 to February 2028, meaning a judgment on the merits is at least 18 months away. Settlement is possible before then; AT&T and Broadcom moved toward resolution without a full verdict. But the precedent value of a litigated judgment — on whether post-acquisition pricing conduct against locked-in enterprise customers constitutes Chapter II abuse — would be substantial regardless of outcome.
The litigation also lands during a sharpened period of regulatory attention. The Digital Markets, Competition and Consumers Act 2024, which entered force in January 2025, gives the CMA new powers to designate firms with strategic market status and impose conduct requirements proactively. Broadcom does not appear to have been designated under that regime, but the Act signals Parliament's intent to supplement post-hoc litigation with upstream conduct regulation in concentrated digital markets.
For enterprise procurement, the practical lesson is immediate: perpetual licenses from dominant vendors now carry a transition risk that was never priced in during the perpetual era. Buyers who structured enterprise agreements around a vendor's pre-acquisition pricing model need contractual change-of-control protections and credible technical exit strategies. The 40,000-workload migration — with backup tools incompatible with replacement hypervisors and a minimum three-year timeline — is precisely what gives Broadcom its pricing leverage. Reducing that leverage, before the next acquisition reshapes the terms of the next installed base, is now the prudent default for any large-scale enterprise IT strategy.