Aged 22, Stern took the reins of Banque Stern with a clear mandate to revitalize the nearly bankrupt institution. During the 1980s, Stern revamped the bank, expanding its activity in financial markets, as well as in mergers and acquisitions. In 1985, Stern sold the bank for 300 million francs ($60 million in 2005 dollars) to Lebanese investors. Thanks to a clause attached to the contract, Stern got to keep the copyright over his last name. Immediately after the sale went through, Stern started a new bank, with a similar name and business profile, drawing in many of his former clients. He sold this second institution for an estimated 1.75 billion francs in 1988 to the Swiss Bank Corporation (SBS, which will later merge with UBS to form UBS S.A.). As a result of these transactions, Stern shot up the ranks of the richest families in France, occupying the 38th spot, according to Forbes.