Some of these are pretty volatile: https://www.marketwatch.com/amp/story/guid/5A570E78-23CD-11E9-A7F9-8598764E9A6B https://www.marketwatch.com/amp/story/guid/5A

Some of these are pretty volatile: https://www.marketwatch.com/amp/story/guid/5A570E78-23CD-11E9-A7F9-8598764E9A6B https://www.marketwatch.com/amp/story/guid/5A570E78-23CD-11E... Tesla is also unusual in having an extremely large P/E compared to the typical S and P 500 company. That means it's being valued on future expectations, not present realities. Expectations of the future can swing much more wildly than those for present based businesses.