If that is a serious question, here is a serious answer:
The actual answer is in two parts...
(1) Wall street is just legalized gambling by idiots and
(2) Stock buy backs by corporations drive up the price of stocks...
@Lizard_of_Ahaz & as to (2) the tRump tax cuts allowed massive buy backs to occur.
@phxbillcee Stock buy backs are also considered a cost of doing business and therefore the money used is tax exempt...
@Lizard_of_Ahaz Isn't that convenient...
@phxbillcee Oh so very.... I guess it is more so than bothering to pay their employees enough to live on....