The Financial Conduct Authority has opened an investigationinto whether the London Stock Exchange Group and the landlord of the LSE datacentre building have restricted competition for low latency connectivityservices between trading venues.LLCS providers build high-speed links between venues,enabling trading firms to execute transactions in very short timeframes. Tomaximise speed, providers often place radio equipment close to the exchanges.At present, only LSEG is allowed to use the rooftop of the data centre buildingto install such equipment.Concerns Over Exclusive Rights and Competition ImpactThe FCA said it is concerned that LSEG’s exclusive rights tothe rooftop, along with its policy at the LSE trading venue, could preventrival LLCS providers from installing equipment. This may give LSEG’s ownservice an advantage and reduce competition. The investigation focuses onconnections between the LSE trading venue in London and two other UK venues,Cboe Europe and ICE.Proposed Commitments from LSEG and LandlordTo address these concerns, LSEG and the landlord haveproposed to end LSEG’s exclusive rooftop rights. Under the plan, LSEG wouldcontinue to use part of the rooftop, but equivalent space would be offered tothird parties on what the FCA describes as a fair and reasonable basis.Public Consultation on Rooftop Access ProposalsThe FCA has provisionally said these proposals may resolveits competition concerns. A consultation on the commitments opened on 5September 2025 and will run until 29 September 2025. Interested parties cansubmit responses by email.You may find it interesting at FinanceMagnates.com: Nearly500 Victims Fall for Fake FCA Recovery Scams This Year. The commitments have been offered under the Competition Act1998, which allows firms under investigation to make binding promises on theirfuture conduct. The FCA has discretion on whether to accept such commitmentsand must first consult affected third parties.Regulator Makes No Finding of BreachThe regulator has not reached any conclusion on whethercompetition law has been breached. It also noted that the commitments do notrepresent an admission of infringement by LSEG or the landlord.This article was written by Tareq Sikder at www.financemagnates.com.