Meet the Irishman who manages $800,000,000,000

He’s in charge of the world’s biggest mutual fund, so how does Vanguard manager Gerry O’Reilly go almost unnoticed?

Gerry O'Reilly, manager, Vanguard: If I come in with a bad haircut, Im going to hear about it

Gerry O’Reilly wasn’t fazed by Brexit. On the Friday morning after Britain voted to leave the European Union, the manager of the world’s biggest mutual fund was on the trading floor ...