Margin and Leverage in Futures Trading, Explained

Margin in futures trading is a deposit of money or collateral that backs your promise to perform on a contract. Leverage is the result: because the deposit is a fraction of the contract’s full value, a small amount of capital controls a much larger position. Both gains and losses are calculated on the full position, which is why futures can reward or punish quickly. This guide explains how margin works, what a margin call is, and how to think about the risk.

In brief

• Futures margin is a good-faith deposit or performance bond, not a down payment.
• Initial margin is required to open a position. Maintenance margin is the minimum balance to keep it open.
• Accounts are marked to market daily, and losses are deducted in cash.
• If the balance falls too far, a margin call requires more funds, or the position may be closed.
• Losses can exceed the money you first deposited.

What margin is, and what it is not

The Commodity Futures Trading Commission (CFTC) glossary defines margin as money or collateral that a customer deposits with a broker, or that a broker deposits with a clearing member. It then adds a point that surprises many newcomers: the margin is not partial payment on a purchase. It is also called a performance bond. With stocks bought on margin, you borrow from your broker to pay for shares. With futures, you do not borrow to buy anything. You post collateral so the exchange’s clearinghouse can be confident that you will meet your obligations if the market moves against you.

The CFTC glossary describes leverage as the ability to control large dollar amounts of a commodity or security with a comparatively small amount of capital. That is the whole concept in one sentence.

Initial margin and maintenance margin

Two thresholds govern an account.

Initial margin. The CFTC glossary describes this as the amount required when a futures position is opened, funds put up as security for a guarantee of contract fulfillment. Exchanges and clearinghouses set minimum levels for each product, and brokers may require more.

Maintenance margin. This is the minimum balance that must be maintained on deposit. The CFTC glossary states that if equity falls to or below this level, a margin call is issued. Maintenance margin is typically lower than initial margin, which gives the account some room before action is needed.

Levels differ by product and change over time, often rising when markets become more volatile. Exchanges such as CME Group publish their current margin requirements on their websites, and your broker publishes its own. We do not state specific amounts here because they change; check the exchange and broker pages before trading.

Mark-to-market: losses are paid daily

Futures accounts settle every day. The CFTC glossary describes mark-to-market as the daily cash-flow process that calculates the gain or loss in each contract position from changes in price at the end of each session. Gains are added to your account and losses are subtracted, in cash.

This feature protects the clearinghouse. Instead of letting a large loss build until the end of the contract, the system collects it a little at a time. For the trader, the result is that a position can force a cash demand long before the contract expires, even if you believe the price will eventually recover.

Margin calls

A margin call is a request for additional funds. The CFTC glossary says a brokerage firm may ask a customer to bring margin deposits back up to initial levels, and that clearing organizations also issue margin calls to clearing members. In practice:

1. Your account equity drops to or below the maintenance level after a series of daily losses.
2. Your broker notifies you and states the amount needed and the deadline.
3. You deposit funds, or you reduce or close positions to lower the requirement.
4. If you do nothing, the broker can liquidate positions, often without further notice, and you remain responsible for any shortfall.

Brokers’ terms vary, and some act very quickly in fast markets. Read your account agreement closely.

A worked example (hypothetical numbers)

These figures are invented for illustration. They do not describe any actual contract or margin requirement.

A trader opens one long position in a contract with a notional value of 100,000. The initial margin is 5,000 and the maintenance margin is 4,000. The trader deposits 5,000.

• Leverage: 100,000 / 5,000 means the position is 20 times the deposit.
• Day 1: The price falls 1 percent. The position loses 1,000, and the account drops to 4,000. That equals the maintenance level, so under the CFTC’s description a margin call is triggered once equity falls to or below that level.
• Margin call: The broker asks the trader to restore the account to the initial level, which means depositing 1,000.
• Day 2: The price falls another 2 percent. The position loses 2,000 more. The account again sits below maintenance and needs a further deposit.

After two days, the trader has lost 3,000 against the 5,000 first deposited, a 60 percent loss from a price move of just 3 percent. If the price had instead risen 3 percent, the gain would have been 3,000, a 60 percent return. Leverage magnifies in both directions, and that symmetry is the point to remember.

The loss can also be larger than the deposit. A gap in price overnight, for example after a surprise report, can cause losses beyond the account balance before any call can be met. The trader would then owe the difference to the broker.

Why leverage cuts both ways

Three features make the risk real:

• Notional exposure is large. One contract controls a substantial quantity of the underlying. Even minor percentage moves translate into meaningful dollar swings.
• Prices can gap. Markets can open sharply higher or lower after news, with no chance to exit at intermediate prices.
• Margin can change. Exchanges raise margin when volatility rises. A position that fit your account yesterday may require more collateral tomorrow.

The EIA notes that futures are used both to hedge and to speculate, and a hedger usually holds a physical exposure that offsets futures losses. A pure speculator has no such offset.

Managing margin risk

Educational materials from regulators and exchanges commonly point to similar practices:

• Keep more money in the account than the minimum, so a normal move does not trigger a call.
• Size positions by the dollar risk you can tolerate rather than by how many contracts the margin allows.
• Understand how your broker handles calls and liquidations before you open a trade.
• Learn the contract’s specifications and trading hours, including when margin rates may change.
• Use defined-risk approaches, such as options, only if you understand them fully, since they carry their own risks.

None of this is trading advice, and no technique removes the risk of loss.

Common misconceptions

“Margin is the most I can lose.” It is not. Losses are calculated on the full contract value and can surpass the deposit.

“Margin is interest-bearing debt.” In futures, margin is collateral, not a loan, although your broker may charge fees and commissions.

“A margin call means the position is wrong.” It means the account balance has fallen below a required level. A position can be sound in the long run and still require cash in the short run.

“Margin requirements are fixed.” They are set by exchanges, clearinghouses and brokers and adjusted as markets change.

Related guides

For the mechanics of the contracts, see how futures contracts work. To see how price signals form, read how commodity prices are set.

FAQ

What is the difference between initial and maintenance margin?

Initial margin is needed to open a position. Maintenance margin is the lower minimum balance you must keep on deposit. A fall to that level triggers a call to restore funds.

Is margin in futures the same as margin in stocks?

No. Stock margin is a loan from the broker to buy securities. Futures margin is a performance bond that secures your obligation, and the CFTC says it is not a partial payment on a purchase.

What happens if I cannot meet a margin call?

The broker can close some or all of your positions, and you remain responsible for any resulting deficit. Terms depend on your account agreement.

Can I lose more than I deposit in futures?

Yes. Because exposure is based on the full contract value, a large adverse move can exceed your deposit.

Where can I find current margin requirements?

On the exchange’s website for exchange minimums, and from your broker for the requirements it applies to your account.

Who regulates futures margin?

The CFTC oversees futures markets. Exchanges and clearinghouses set margin levels for their products under CFTC-regulated rules, and brokers may impose stricter terms. See cftc.gov for details.