Originally Posted by k0nr4d

We can only assume his SpaceX rockets are powered by his love of the environment rather then combustion of rocket fuel

The thing is, he didn't REALLY influence it. Some speculators thought OH FUCK ELON TWEETED THIS BETTER SELL BECAUSE IT WILL INFLUENCE THE PRICE.
And it's those people THINKING that he has some influence on it selling, thus making it self-fulfilling.