It's also worth noting that Stockpile and fractional shares aren't only for people who want less than one share of stock. The benefit of fractional shares allows you to buy stock in whatever dollar amount you're comfortable with. For example, if you want to buy $100 worth of SNAP stock, which is about $15 per share, then you'd get 6.6667 shares of stock. Your shares go up and down with the market fluctuations just like owning stock in whole share amounts.