Citigroup says the over-payment to hedge fund Brigade was due to an "operational mistake".
BBC Business News Articles
Trump dangles cash for US firms moving from China
The US president is enticing companies to move factories back to America while punishing those who don’t.
Auctioneers see surge in Covid-19 bankruptcy sales
Auction firm reports "busiest month in 52 years" as stock is sold from businesses going bankrupt.
Tracking down three billion litres of lost water
Pinpointing a leaky pipe is difficult, so water firms are deploying thousands of sophisticated sensors.
Thousands of migrants denied help in the pandemic
Migrants in casual roles have lost work under lockdown - but they are unable to access benefits.
Ryan Reynolds-backed gin bought in $610m deal
Aviation American gin, in which the Hollywood actor holds a major stake, has been sold to Diageo.
McDonald’s ex-boss fights sexual liaison claims
Steve Easterbrook asks for a case alleging that he lied about relationships with staff to be dismissed.
Ryanair cuts flights as EU virus rates hit bookings
The airline said activity for September and October "notably weakened" over the past 10 days.
Huawei: US tightens restrictions on Chinese giant
The actions will stop the firm buying computer chips made using US tech, even if made abroad.
Selfridges to offer clothing rental in environmental push
Customers are demanding that businesses take environmental concerns seriously, says boss.