What Is Margin Trading?
In plain English
Margin trading is the practice of borrowing funds from a brokerage to purchase securities, using your existing portfolio as collateral. It amplifies buying power and potential returns but equally magnifies losses, making it a high-risk strategy suited primarily for experienced investors.
How Does a Margin Account Work?
When you open a margin account, your brokerage extends a line of credit based on the value of your holdings. Under Regulation T, you can borrow up to 50% of a stock's purchase price. You pay interest on the borrowed amount, and you must maintain a minimum equity level (maintenance margin) in your account at all times.
What Is a Margin Call?
A margin call occurs when your account equity falls below the brokerage's maintenance requirement — typically 25% to 40% of total holdings. You must deposit additional cash or sell securities to restore the required level. Failure to meet a margin call allows the brokerage to liquidate positions without your consent.
Who Should Consider Margin Trading?
Margin is best suited for experienced investors who understand the risks and have a clear strategy. Short-term traders may use margin to capitalize on brief opportunities. Long-term buy-and-hold investors generally should avoid margin because interest costs compound and market downturns can trigger forced selling at the worst possible time.
Frequently asked questions
How much interest do you pay on margin?
Margin interest rates vary by brokerage and loan size, typically ranging from 5% to 12% annually. Some brokerages offer lower rates for larger balances. Interest accrues daily and is charged monthly, reducing your net returns.
Can you lose more than you invest with margin?
Yes. If your leveraged positions decline sharply, losses can exceed your original investment. You remain liable for the borrowed amount plus interest, which is why margin trading carries substantially more risk than cash investing.
Keep exploring
Related terms
Short Selling
Short selling is a strategy where investors borrow and sell a security they don't own, hoping to buy it back later at a lower price. It is a way to profit from declining asset prices but carries significant risk.
Options Trading
Options are financial contracts that give you the right, but not the obligation, to buy or sell an asset at a specific price before a set expiration date. Options can be used for speculation, hedging, or income generation.
Volatility
Volatility measures how much and how quickly the price of an investment rises and falls over time. High volatility means larger price swings; low volatility means more stable, predictable price movements.
Stock
A stock represents a share of ownership in a company. When you buy stock, you become a part-owner of that business and can benefit from its growth through price appreciation and dividends.
Portfolio Rebalancing
Portfolio rebalancing is the process of realigning the weights of your investments back to your target asset allocation. It is a disciplined way to manage risk and enforce buying low and selling high.