Comes as sterling hits 2016 high against dollar
Challenges to the UK's wealthiest
Fell by 16% during March
Crispin Odey is among hedge fund managers shorting Aberdeen Asset Management's stock on fears the latest £9.9bn outflows reported by the company spell further trouble ahead.
Crispin Odey's flagship portfolio sustained heavy losses last month after the manager appeared to be caught out by a move in the Australian dollar.
Crispin Odey rose up the rankings in 2014, but which other hedge fund managers stand among the richest in the UK?