Challenges in the EV segment continued to weigh on the stock.Shares of Hertz Global Holdings (HTZ -19.31%) were tumbling today after the car rental giant posted disappointing results in its first-quarter earnings, as the company continued to experience challenges with its EV fleet.As a result, the stock was down 19.8% as of 3:28 p.m. ET. Hertz is still short-circuitingHertz's revenue in the quarter rose 2% year over year to $2.1 billion, which topped estimates at $2.04 billion. Total transaction days rose 9 ...