CHICAGO, (June 8, 2018) Energy hedge funds soared in May to the best monthly gain since April 2016, leading the performance of the broad-based HFRI Fund Weighted Composite Index with strong complementary contributions from Healthcare, Energy Infrastructure, and Technology exposures. The HFRI EH: Energy/Basic Materials Index surged +6.3 percent in May, leading all indices in the month and bringing the YTD gain to +8.7 percent, according to data released today by HFR, the established global industry leader in the indexation, analysis and research of the global hedge fund industry. The HFRI Fun...