It doesn't have to be rooted in fundamental numbers. It should be, it would make more sense if it was, but the market is the only thing that matters. See also:

It doesn't have to be rooted in fundamental numbers. It should be, it would make more sense if it was, but the market is the only thing that matters. See also: Tesla, a failing car company with a strong history of empty promises, and a currently empty promise of solving labour, and they're worth more than all the other car companies combined.