Investing.com - Cryptocurrency hedge funds last month posted their best monthly gain since November 2013.The Eurekadedge Crypto-Currency Hedge Fund Index rose almost 84% in April, ending three months of losses. Year to date, the index, which is based on an equal weighting of seven different funds, is down about 1%.The April gain is slightly better than that of December 2017, which capped a record year in which the index rose more than 1,700%So-called alt coins posted the biggest gains in April. EOS, TRON, Cardano and Stellar all rose more than 100%.