Bouncing back from a disappointing performance in May, shares of rare earths producer MP Materials (MP 2.79%) raced considerably higher last month. According to data provided by S&P Global Market Intelligence, MP Materials stock rose 52.7% in June.In addition to the ongoing trade dispute with China -- of which rare earths are a focus -- positive commentary from analysts contributed to the stock's rise. News from both Washington and Wall Street wound up investors' excitement last monthEarly in the month, the ...