Volume creates demand.Stocks don't go up because companies do well or do poorly. Stocks go up and down depending on supply and demand. If a stock is marketed well enough to create more demand from buyers than there are sellers, the stock will go up.
What about fundamentals?
'Fundamentals' is a word invented by sellers to find buyers.
Jesse Livermore wrote, "stocks are manipulated to the highest point possible and then sold to the public on the way down." Further discourse on this and other silly topics can be found under my name at Silicon Investor.