A brokerage deposit bonus is an incentive offered by trading platforms to attract new clients or encourage existing ones to increase their deposits. Typically, this bonus is a percentage of the deposited amount, credited to the trader's account, allowing them to trade with additional funds. While it can enhance trading potential, it's essential to understand the terms and conditions, as there may be withdrawal restrictions or trading volume requirements attached. Overall, a deposit bonus can be a valuable tool for traders looking to maximize their investment opportunities.