ASX 200 news from Tuesday 26th May 2026: Shares end lower after oil spike; ASX Ltd dives 13pc in record fall after cost blowout

Live: Australian stocks fall as US strikes dampen investor sentiment

ASX 200 fell 0.7% Tuesday, with ASX Ltd shares down 10.6% after raising FY27 capex guidance to $180–200M on technology cost inflation. An ASIC finding of historical underinvestment vs global peers puts pressure on infrastructure operators to accelerate tech spend.