Look no further than Uber Technologies (UBER 0.83%) and Tesla (TSLA 1.35%) for examples. Both companies have alr

Merit Medical Systems said it expects second-quarter revenue of $380 million to $384 million, better than analysts’ forecasts of $372.5 million, and named Martha Aronson as chief executive and president. She will succeed Fred Lampropoulos, who founded the company in 1987 and has been chief executive since then. Shares rose 3%.

Tesla was the worst-performing stock in the S&P 500 as CEO Elon Musk jumped back into the political fray, announcing a new political party and continuing to spar with President Trump on social media U.