Rivian weakness this year is much worse than the 30% decline in the Global X Autonomous & Electric Vehicles ETF The EV startup faces supply-chain hurdles and cost pressures as it tries to scale up its production Despite these setbacks, Rivian is still the best-positioned startup to compete with Tesla in the rapidly growing EV market Rivian Automotive (NASDAQ:RIVN) $Rivian Automotive, Inc.(RIVN)$ seems to have lost investors' faith. Shares of the Irvine, California-based company are down about 68% this year, with no sign of a recovery in sight.Despite the ongoing broad-based sell-off in growth names—especially the ones with negative earnings—Rivian's drop is much steeper than the 31% decline in the Global X Autonomous & Electric Vehicles ETF (