Bitcoins have no dividend or potential future dividend, therefore not like a stock.
More like a collectible or commodity.
is it true? how to be commodity?
Technically true. His goal is quite different compared to most projects that have been made to literally earn funds. Basically he wanted to create a system that is not control by any third party and people can use that to do a transaction on a digital manner. His ideal doesn't much involve self motive to pull an earning process for people but what happened on reality have added a investment approach since people made bitcoin grows into something really valuable.