JPMorgan analyst Joseph Greff recommends buying shares of MGM Resorts heading into the back half of 2018. The stock offers an attractive risk/reward and setup for 2019, Greff tells investors in a research note. The analyst attributes the 10% year-to-date selloff to MGM's lowered 2018 guidance in April, an "uninspiring" investor day in May, and "disappointing" Macau market-wide gross gaming revenue growth in May and June. He believes most of the issues that have caused 2018's underperformance are transitory and that expectations are "reasonably/incredibly low." Greff lowered his price target for MGM shares to $37 from $41 and keeps an Overweight rating on the name.