Rivian Automotive shares are basically free, the latest evidence, if any was needed, that the stock market is hard to figure out.
Shares of the electric- truck start-up (ticker: RIVN) fell for a fourth consecutive day on Tuesday. First there was the banking crisis, which hit most stocks last week. Then the market learned Monday that Rivian might end its exclusivity pact with
(AMZN), freeing up the auto maker to sell electric vans to other customers.