Moneyball in Switzerland: A Bidding War for Private Bankers

Banque Pictet’s newest partner is bolstering ranks to add assets.

A Banque Pictet office in Geneva.

Photographer: Luke MacGregor/Bloomberg

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There’s a new status symbol for the world’s top private bankers: a phone call from Boris Collardi.

The charismatic one-time wunderkind of the wealth-management industry is tempting these frontline guardians of fortunes who can bring their clients with their billions to his new home: Banque Pictet & Cie., Switzerland’s biggest privately owned bank.