How Stock Futures Work and Why Traders Use Them
What stock futures are
A stock future is a contract to buy or sell a specific stock at a set price on a set date in the future. You do not own the stock itself — you own an agreement about its price. When the contract expires, one side delivers the stock and the other delivers the cash, or both sides settle the difference in dollars instead.
Futures trade on exchanges like the Chicago Mercantile Exchange (CME), not on the stock exchanges where you buy individual shares. They are standardized contracts, meaning the size, expiration date, and settlement rules are the same for every trader. A single stock future contract typically represents 100 shares of the underlying stock.
Stock futures are used by professional traders, hedge funds, and large institutions far more often than by individual investors. They require a brokerage account that permits futures trading, which has higher account minimums and stricter approval rules than a standard stock account.
Key Takeaways
- Stock futures are contracts to buy or sell a stock at a fixed price on a future date, and you settle the contract for cash or shares when it expires.
- Futures use leverage, meaning you control a large position with a small amount of money upfront, which amplifies both gains and losses.
- Most individual investors do not trade stock futures because the risks are high, the minimum account sizes are large, and the mechanics are complex.
- Index futures, which track groups of stocks rather than single stocks, are more commonly used by individual investors than single-stock futures.
- Futures contracts expire on specific dates — typically the third Friday of the month — and you must close or roll the position before expiration.
How leverage works in futures
The defining feature of futures is leverage. You do not pay the full price of the stock upfront. Instead, you put down a small percentage called the initial margin, usually between 5 and 15 percent of the contract's total value. The broker lends you the rest.
This means small price moves create large percentage gains or losses on your money. If you put down $2,000 to control a $20,000 position and the stock rises 10 percent, your $2,000 grows to $4,000 — a 100 percent return. But if the stock falls 10 percent, your $2,000 shrinks to zero and you owe the broker money. This is why futures are considered high-risk.
Your broker monitors your account balance constantly. If losses eat into your margin, the broker issues a margin call and demands you deposit more cash immediately. If you do not, the broker closes your position without asking, locking in your loss.
Expiration dates and rolling contracts
Every futures contract has an expiration date. For stock futures, contracts typically expire on the third Friday of March, June, September, and December. As the expiration date approaches, the contract becomes less liquid — fewer traders are willing to buy or sell it — and the bid-ask spread widens.
If you hold a contract past expiration, you must either close it (sell it to exit the position) or roll it (sell the expiring contract and buy a new one with a later expiration date). Rolling keeps your position open but locks in a small loss because the newer contract usually trades at a different price. Most traders close or roll several days before expiration to avoid the thinning liquidity.
If you do nothing and the contract expires, the exchange settles it by cash or delivery. For most stock futures, settlement is cash-based, meaning the exchange calculates the difference between the contract price and the stock's price on the expiration date and transfers the money to or from your account.
Why individuals rarely trade single-stock futures
Single-stock futures exist but are rarely used by individual investors. The main reason is that options on individual stocks offer similar leverage and risk control with lower costs and simpler mechanics. A stock option gives you the right, but not the obligation, to buy or sell a stock at a set price — you can walk away if the trade moves against you. A futures contract obligates you to settle, and margin calls force you to stay in the position or post more cash.
Single-stock futures also require a futures-approved brokerage account with higher minimum balances — often $25,000 or more — and they trade only during exchange hours, not after-hours. The bid-ask spreads are wider than for the underlying stock, which means you pay more to enter and exit a trade.
For these reasons, single-stock futures are mainly used by professional traders who need to hedge large stock positions or by market makers who profit from small price differences.
Index futures and their use by individual investors
Index futures track groups of stocks rather than individual stocks. The most common are the E-mini S&P 500 (ES), which tracks the 500 largest U.S. companies, and the E-mini Nasdaq-100 (NQ), which tracks 100 large technology and growth stocks. These contracts are smaller and cheaper than the full-size versions, making them more accessible to individual traders.
Index futures are more liquid than single-stock futures because more traders use them. They trade nearly 24 hours a day, five days a week, which means you can trade them before the stock market opens or after it closes. Many individual traders use index futures to bet on the direction of the overall market or to hedge a stock portfolio.
Even so, index futures carry the same leverage and margin-call risks as single-stock futures. A small move in the index can wipe out your margin deposit, and you must monitor your account constantly during market hours.
Futures versus buying stocks outright
If you want to own a stock and hold it for the long term, buying shares directly is simpler and safer than trading futures. You pay the full price, you own the asset, and there is no expiration date or margin call. Dividends are paid to you automatically.
Futures are a tool for short-term traders who want to bet on price direction without owning the stock, or for professionals who need to hedge large positions. The leverage is attractive when you are right, but devastating when you are wrong. The expiration dates and margin calls add layers of complexity that most individual investors do not need.
If you are building a long-term portfolio, stock ETFs or mutual funds that track the same indexes as index futures offer similar exposure without the leverage, margin calls, or expiration dates. You pay a small annual fee instead of trading commissions, but you avoid the risk of a margin call forcing you out of your position.
Frequently Asked Questions
Can I trade stock futures with a regular brokerage account?
No. You need a brokerage account that is specifically approved for futures trading. Most brokers require a minimum account balance (often $25,000 or more) and will ask you to confirm that you understand the risks. The approval process can take a few days to a week.
What happens if I do not close my futures contract before expiration?
The exchange automatically settles the contract on the expiration date. For most stock and index futures, settlement is cash-based: the exchange calculates the difference between your contract price and the stock's closing price and transfers the money to or from your account. You do not receive shares unless you specifically hold a contract that settles by physical delivery, which is rare.
How much money do I need to trade futures?
The initial margin requirement varies by contract and broker, but typically ranges from 5 to 15 percent of the contract's notional value. For an E-mini S&P 500 contract worth roughly $200,000, you might need $10,000 to $15,000 to open a position. However, most brokers require a minimum account balance of $25,000 to trade futures at all, regardless of the margin requirement for a single contract.
Are stock futures the same as stock options?
No. A futures contract obligates you to buy or sell at the set price on the expiration date. An option gives you the right, but not the obligation, to buy or sell. With an option, you can let it expire worthless and lose only your premium. With a futures contract, you must settle the position or roll it to a later date, and margin calls can force you to deposit more cash.
Why would someone use futures instead of just buying the stock?
Futures offer leverage, so you can control a large position with less money upfront. They also allow you to profit if a stock price falls (by selling a contract first, then buying it back cheaper). Professionals use futures to hedge large stock holdings or to trade short-term price moves. For most individual investors, the added complexity and risk outweigh these benefits.