Shares of American Airlines Group Inc. /zigman2/quotes/209207041/composite AAL +0.30% rose 2.7% in premarket trading Tuesday, after the air carrier said Chief Executive Doug Parker will retire, effective March 31, 2022, after about nine years in the role. The company said current President Robert Isom will succeed Parker as CEO. Before becoming president, Isom was chief operating officer at American, after being COO at US Airways. "Robert is an excellent team builder who has worked to bring people together throughout his career," said John Cahill, American's lead independent director. "He is the right leader to carry American forward into its next period of growth." American's stock has gained 13.7% year to date through Monday, while the U.S. Global Jets ETF /zigman2/quotes/207744796/composite JETS +0.39% has lost 5.3% and the S&P 500 /zigman2/quotes/210599714/realtime SPX -1.22% has advanced 22.3%.