Scaling up anything in the services business is a great challenge, more so in the investment management business, where nothing stops the primary asset from walking out the door. Indeed, that is how legendary names in the business made a name, not to mention their fortune: by hanging their own shingle. Citadel’s Kenneth Griffin was an exception, starting right in his dorm at Harvard. In this panel discussion on ‘The intangibles of building a great hedge fund’ at the Milken Institute’s Global Conference 2015, moderator Ilana Weinstein asks Griffin, Jason Karp of Tourbillon Capital, Alex Klabin of Senator Investment Group and Gideon Berger of Blackstone the secret to successfully scaling a hedge fund