(Bloomberg) -- The outperformance by US equities driven by a narrow group of giant tech stocks is set to persist, according to Citigroup Inc. strategists. Most Read from BloombergIran Makes New Offer on Uranium in Response to US, WSJ SaysTrump Rejects New Iran Peace Offer as ‘Totally Unacceptable’Inside a Year of Chaos and Conflict at Kevin Hart’s Media CompanyDrone Hits Ship Near Qatar as US Awaits Iran Peace Plan ResponseJudge to Review Musk, SEC Settlement Deal in Twitter Stake CaseThe team l