People say that nothing is guaranteed in the stock market. But they are wrong. There is one thing that is always true. Markets are always trending. They are either going up, down, or sideways. And it's guaranteed that sooner or later the trend will end.Rivian Automotive, Inc. RIVN has been trending lower over the past month. But this may be about to change. That's why it’s our Stock of the Day.When a stock is trending upward, demand outstrips supply, forcing traders and investors to bid higher prices to sec ...