@ananas @zeenix @nswigger
It doesn't make sense to compare the share prices for different companies. Any company can have whatever share price it wants by issuing or buying back shares, by having stock splits or (whatever the opposite is called, I've forgotten). You need to compare the market capitalisation (share price multiplied by the number of shares). And that makes it look even more ludicrous.
Tesla's market cap is $1.506 T.
BMW's is €43 B (around $50 B).
Tesla's market valuation is around 30x that of BMW (not the 5x that the stock prices alone would imply).
A market valuation for a company is typically a combination of how well it's doing at the moment (profit) and how much people expect it to grow. BMW is probably a relatively stable company, but the price for Tesla is assuming that it will grow by a factor of about 300. Tesla sold a bit under 2M cars last year (including some slightly dodgy accounting with Musk's companies selling to each other). That's close to 2% of total car sales. So a factor of 50x growth would mean that they have 100% of the total addressable market. More than that requires the market expanding significantly or them moving into completely new markets.
This is why Tesla is referred to as a 'meme stock': the valuation has absolutely nothing to do with how much money the company is expected to be and 100% to do with the supply of greater fools.