In the context of hedge funds, a style of management where by the fund employs more than one arbitrage strategy. Portfolio manager opportunistically allocates capital among the various strategies in order to create the best risk/reward profile for the overall fund. Common strategies include merger arbitrage, convertible arbitrage, fixed income arbitrage, long/short equities pairs trading, and volatility arbitrage. In the context of equity and private equity investment, this refers to an investment in a firm where by standard multiples (earnings/price, book/price) indicate the price is far cheaper than industry averages.