The leader of one of the largest U.S. labor unions on Thursday called on top asset managers to review Tesla’s valuation as the electric carmaker’s shares have slumped 30% so far this year. Randi Weingarten, president of the American Federation of Teachers, wrote to top fund firms with Tesla shares including BlackRock, Vanguard and T. Rowe Price, saying she was concerned about the potential impact on members’ pension portfolios. On Tuesday, Tesla’s market capitalization slid below $1 trillion for the first time since November after data showed sales fell in Europe in January.
