Rivian, the electric vehicle maker, has recently faced significant challenges leading to a sharp decline in its stock value. The company announced that it will lower its annual production forecast due to a parts supply shortage, which has also resulted in missed delivery expectations for the third quarter. Rivian's updates indicate that it will produce fewer vehicles this year compared to previous years, contributing to a broader sense of turbulence in the EV market. The company's struggles with component shortages have pushed shares to tumble, with analysts noting the impact of these disruptions on delivery figures and future forecasts.