They are the masters of the universe in training.
Hedge fund bible Trader Monthly will today publish its list of 30 of the world's top traders under 30, and four London traders are included.
Alexander Baring, a scion of the famous banking family and a trader at The Children's Investment Fund (TCI); Stephan Marks, an independent trader; Alex Rogers, of Marex Financial, and Mona El Isa, of Goldman Sachs, one of just two women to make the grade, are all on the list.
At 29, Mr Baring just sneaks in, although he is still one of the youngest partners at TCI, the hedge fund run by billionaire philanthropist Chris Hohn, who gave the children's charity run by his wife, Jamie Cooper-Hohn, £460m earlier this year in the UK's biggest single charitable donation.
Read about why everyone's quitting the hedge fund game (hint: they're not in the top 30 under 30)