That's only if you consider this a one time thing. Those 100K vehicles are going to need replacement in a few years. And considering, Hertz's stock price increase, investors are clearly believing this is a great deal for them. Which raises the question about where all their competitors will be buying their EVs. There are millions of rental vehicles. Close to 2M in the US alone.

The reasons Hertz is considered to be getting a great deal here by investors is that EVs retain their value a lot better and are known to have much lower maintenance overhead. So, they'll get more miles out of them before they have to sell them on, get back more when they do, and be able to charge a premium for them at the same time. In a market where margins are razor thin, that's a big deal.

It's more a question of when than if their competitors will be lining up to buy some EVs. They'll have to. And then of course the next question is which one they'd be buying. The answer for the next few years is that Tesla is one of the few companies that has both product and manufacturing ready for volume production. Of course a few other manufacturers might make some nice money here too.

So, investors are thinking that Tesla could end up supplying many hundreds of thousands of vehicles for rental per year in the next few years. On top of their other business, which is also continuing to grow at a very nice pace. They'll likely need a few new factories for this but they've shown they can deliver those as well.