A share of stock is not a lottery ticket with a wiggling price. It's a fractional deed to a real business: a claim on its profits, and an exposure to its debts. Buy ten shares of a company with five billion shares outstanding and you own two-billionths of everything it earns and owes. Small, but real.
“Will the stock go up?” asks you to predict what millions of strangers will pay tomorrow. Nobody can do that reliably, and nothing on this site pretends to. The ownership lens swaps in two questions you can actually work on. Is this a business I'd want a piece of? You answer that by reading what it earns, owes, and generates. And is the price fair? You answer that by comparing the price to an estimate of what the business is worth.
Everything here is arranged in that order on purpose: the business first, your slice second, the valuation third, the price last. Most finance sites lead with the price chart. That's the whole difference.