Advent Capital is offering investors pure exposure to a well-performing volatility strategy within its flagship hedge fund.The new vehicle, dubbed Advent Vega, manages an “idiosyncratic volatility-arbitrage” portfolio that has been a component of the multi-strategy Advent Global Partners Fund since 2011. The sub-strategy has generated an annualized gross return of 12.75% since Jan. 1, 2012, with no down years and an enviable Sharpe...