Margin debt is the amount of money an investor borrows from their broker via a margin account. Trading with a margin debt can magnify gains because an investor can benefit from the upside of any stock without having to invest 100%, resulting in greater profit. On the flip side, trading with margin debt can also exacerbate losses because if a stock's value were to depreciate, the investor may face a margin call and would need to come up with additional cash to reach the minimum requirement.
