Right but those are all speculative, and unlikely to ever turn a profit. Optimus is a charade.

It's the same reason why other tech companies are falling too, like alphabet. The giant spending on AI surprised the market, which is strange, since it hasn't been a secret. But the stock market is always over-reacting, which is why it's easy to make money long term.

People without experience get scared and sell their stocks, until they get the needed experience to either sell and buy something on the way up, or don't sell and wait it out.