To purchase one share of a stock, open a broker account, sign an agreement, choose the stock of your preference, fund the purchase, and pay the transaction fee, according to NBC News. The exact method for making a stock purchase varies depending on the brokerage firm you select.
To buy one share of the stock, you must ensure your account has the necessary funds to cover the transaction, notes NBC News. You must also calculate the cost of fees that you need to cover the service.
As of 2015, brokerage firms such as E*Trade charge clients almost $10 for each transaction, according to E*Trade. E*Trade allows you to buy a stock by entering the number of stocks you want to order under the Order Type tab.