Remember that “store” where people can buy and sell your company’s shares once you’re publicly listed? It’s called a “stock exchange.” “Stock” is just another word meaning “share,” or, weirdly, also “shares.” It’s one of those English words that makes you go “huh, I never realized it, but that word is kinda stupid.” Anyway, owning stock in a corporation means the same thing as owning one or more of that corporation’s shares. So, a stock exchange is a store where you can buy and sell stock in one or more corporations. Actually, a stock exchange might be even more like Tindr for buying and selling shares. If you have money and want to buy stock, the stock exchange will help to match you with Rupinder, who has the stock you want and is willing to sell it to you at the price you want to pay.