Féry worked as a financial trader in Hong Kong, moving there in September 1997 during the Asian financial crisis. He was put in charge of credit markets in South East Asia for Société Générale, remaining there until 2000. He developed a company called Asiabooster to help European start-ups in the continent, but it fell to the Dot-com bubble.[3]
Having returned to Europe in 2001, Féry settled in London. His former boss at Société Générale set him the task of setting up Crédit Agricole's business in the British capital, leading 150 people in 2006. In March 2007, he was the highest paid person in the company. Four months later, with the company now known as Calyon after its merger with Crédit Lyonnais, one of Féry's subordinates lost €200 million on the New York stock exchange. Féry was fired in September[3]
Before the end of 2007, Féry set up the hedge fund Chenavari, named after a peak visible from his childhood home.[3][2] As of 2020, Chenavari had $5 billion in assets.[4]
Féry considered buying OGC Nice, Nîmes Olympique, Grenoble Foot 38 or Sheffield Wednesday before buying FC Lorient in 2009.[4] The Nice offer in 2001 was with a Korean business partner, and was rejected for lack of transparency, while the president of Nîmes changed his mind as his club was promoted to Ligue 2, and Wednesday was considered too expensive and risky for Féry.[5] Aged 35, he was the youngest president in Ligue 1.[3] As of 2012, Lorient was the only Ligue 1 club not in debt.[5]
In late 2012, Féry was elected president of the administration council of the Ligue de Football Professionnel.[6] In July 2018, he and Francis Graille of AJ Auxerre were elected presidents of the same body for Ligue 2 clubs.[7]
Féry's club were relegated back to Ligue 2 in 2017. After achieving promotion back to Ligue 1 in 2020, he invested heavily, saying that only Paris Saint-Germain F.C. and OGC Nice were spending as much.[4] In July 2023, he received attention for signing 2018 FIFA World Cup winner Benjamin Mendy days after the player was acquitted of sexual offences in England.[8] Lorient were relegated again from the 2023–24 Ligue 1, despite having the eighth-biggest budget. Féry admitted responsibility for Lorient's relegation and the mistake of abolishing the role of sporting director, which had left coach Régis Le Bris with the added role of player recruitment.[9]
