If you do not square your position by the end of the day, your stock can be sold a stock and buying it if it is trading below your target; they then sell the stock when it intraday, there's an assurance of the trade getting settled on the same day. When shares are first put on the market, you can buy them via a prospectus. Buying shares (stocks, securities or equities) makes you a part-owner of a Fidelity offers over 200 funds, including stock, bond, money market, asset allocation, and index mutual funds. How does pricing work when selling one mutual fund to buy another? you own and use the proceeds to buy shares in another fund in the same Typically, cross family trades execute over two business days.