David Herzberg, the former global head of equity derivatives at JPMorgan, joined BTG Pactual as managing partner and head of international equity trading in London. His focus was on launching an international equity multi-strategy trading operation. [Over the past year, Herzberg has been expanding BTG Pactual’s team. Most recently, Herzberg hired Philippe Mathieu, an ex-equity trader at Nomura, as a portfolio manager in London.]