Investing

Hedge Fund’s Payments for Ideas Drew Tipsters From the Dark Side

An alpha capture system attracted a brother-sister duo with side hustles in insider trading and money laundering

London’s CityPoint tower where Squarepoint Capital is based in the UK.

Photographer: Simon Dawson/Bloomberg

Squarepoint Capital collects ideas for its quant hedge fund from all over the world, with gleaming offices in London, Singapore, Dubai, New York and one above a Paris art gallery near the Champs Elysees.

It also paid for stock tips from an Albanian day trader working in a cramped flat on the other side of London that she shared with her brother. Oerta Korfuzi toiled there on a large curved screen in the corner of her living room, squeezed between an alcove and a grey L-shaped sofa.