Rivian Automotive TodayRIVNRivian Automotive$15.74 -0.05 (-0.32%) 52-Week Range$9.50▼$17.15Price Target$13.72Add to WatchlistWhen it comes to investing, there’s no shortage of adages. Some are practical: You could easily compile a coffee table book based on Buffettisms alone. On the other hand, others should be taken with a grain of salt.  For example, after GameStop NYSE: GME and AMC Entertainment NYSE: AMC posted otherworldly gains in 2021, many “buy the dip” adherents invested every cent they had into t ...