https://www.stockcalc.com/blog/BrianD/2017/04/10/cj-energy-services-cjase-and-midstates-petroleum-mpoase-are-biggest-stock-gainers-ytd-on-amex/
C&J Energy Services (CJ:ASE) and Midstates Petroleum (MPO:ASE) Are Biggest Stock Gainers YTD on AMEX