A brokerage account is a financial account similar in function to the accounts you have with a bank. With a brokerage account, you deposit funds with an investment firm (the brokerage). This is usually done by a transfer from your existing bank account. Once funds are added to your brokerage account, you can put the money to work using the brokerage's trading platform to invest those funds in the market. The assets you buy with your cash can be anything offered by that brokerage, including stocks, bonds, ETFs, and even cryptocurrency. Your online brokerage account will display your holdings (the assets you've purchased) as well as your cash balance (your buying power). If you invest in something that gains in value, you can sell it and the profits will be deposited in your online brokerage account. From there, you can place another trade or even transfer the funds out to your regular bank account to use elsewhere. Some brokerage accounts even allow you to earn interest on your uninvested cash.