There have been multiple catalysts that have been sending shares of Rivian higher recently.Shares of electric vehicle maker Rivian Automotive (RIVN 1.54%) have been soaring this year, up more than 40% since January. They're on track for their best performance since the company went public back in 2021. Last year, they were down by 43% and the year before that, they rose by 27%. And in 2022, when the market crashed, Rivian's shares tanked by a staggering 82%. For years, Rivian has struggled to win over growt ...