CMC Markets jumps after B2B upgrade, eyes on new margin baseline
CMC Markets shares were up sharply in London after the company rolled out a B2B upgrade seen as signalling a margin reset. CMC Markets Plc shares surged nearly 40% Wednesday after the UK trading group raised its FY2027 income outlook again—its second upgrade in a month. The new targets suggest profit from B2B deals could beat what the market was expecting.