E-mini futures are electronically traded contracts that track major U.S. stock indices at a fraction of the size of standard index futures. They trade on the CME Globex platform, settle in cash rather than shares, and use fixed dollar multipliers that turn each index point into a set amount of money. The most active contract, the E-mini S&P 500 (symbol ES), carries a $50-per-point multiplier and an exchange-set maintenance margin of roughly $22,000 to $24,500 for a single contract as of mid-2026, a number that moves with market volatility.1CME Group. E-mini S&P 500 Futures – Margins
Contract Specifications
Each E-mini contract converts index points into dollars using a multiplier set by the CME. For the E-mini S&P 500, that multiplier is $50 per index point.2CME Group. E-mini S&P 500 Futures With the S&P 500 at 5,500, one contract controls a notional value of $275,000. The minimum price move, or tick, is 0.25 index points, worth $12.50 per contract. A 10-point move in the index means a $500 gain or loss on one contract.
The other two heavily traded E-minis follow the same structure with different multipliers. The E-mini Nasdaq-100 (NQ) uses a $20-per-point multiplier, giving one contract a notional value of $400,000 when the index is at 20,000.3CME Group. E-mini Nasdaq-100 Futures The E-mini Dow (YM) uses a $5-per-point multiplier, the smallest of the three in dollar terms.4CME Group. E-mini Dow Jones Industrial Average Index Futures
All E-mini contracts are cash-settled. No stock changes hands at expiration; your account is simply credited or debited based on the final settlement price.
Micro E-mini Contracts
If a full-size E-mini is still too large for your account, the CME offers Micro E-mini contracts at one-tenth the size. The Micro E-mini S&P 500 (MES) has a $5 multiplier, so each 0.25-point tick is worth $1.25.5CME Group. Micro E-mini S&P 500 Index Futures The Micro E-mini Nasdaq-100 (MNQ) uses a $2 multiplier, making each tick worth $0.50.6CME Group. Micro E-mini Nasdaq-100 Index Futures
Margin requirements scale down proportionally. Because a Micro E-mini S&P 500 controls one-tenth the notional value of the standard ES, the exchange-set margin is roughly one-tenth as well, often around $2,400. For most retail traders testing strategies with real money, the Micros are the realistic entry point.
What It Costs to Trade One Contract
Margin in futures is not a down payment. It’s a performance bond you post to guarantee you can cover potential losses. The CME publishes maintenance margin levels for every contract, and those levels change frequently as volatility shifts. In mid-2026, the exchange-set maintenance margin for the E-mini S&P 500 sits around $24,375 for a long position and about $22,150 for a short position.1CME Group. E-mini S&P 500 Futures – Margins
Your broker sets its own initial margin, which is the amount you need in the account to open a new position. The exchange sets the floor; brokers can, and usually do, demand more. In practice, initial margin often runs 10% or more above the exchange maintenance level, putting the opening requirement for one ES contract somewhere north of $26,000.
Maintenance Margin and Margin Calls
Once your position is open, your account equity must stay at or above the maintenance margin level. A bad day that pushes equity below that threshold triggers a margin call: a demand to deposit enough cash to bring the account back up to the initial margin level, not merely to the maintenance level. Response windows are short. If you don’t add funds quickly, the broker will liquidate the position without asking, at whatever price the market offers.
Intraday Margins
Some retail brokers offer reduced intraday margins for positions opened and closed within the same session. These can be substantially lower than the exchange-set overnight requirement. The trade-off is that you must close the position before the session ends. Hold it past the cutoff and the full overnight margin kicks in; if the account can’t cover it, an immediate margin call follows. Intraday margins are a broker-level feature, not something the CME controls, so the rules vary by firm.
Daily Settlement Moves Cash Every Day
Futures accounts do not wait until you close a trade to calculate profit and loss. Every day, the clearinghouse marks each open position to the daily settlement price. If the market moved in your favor, cash is credited to your account that evening. If it moved against you, cash is debited. This mark-to-market cycle repeats every trading day for the life of the position.
The practical effect: gains are available to you and losses are extracted from you in real time. A trader holding one E-mini S&P 500 contract through a 50-point drop watches $2,500 leave the account that same day. This daily cash flow is why margin calls can hit quickly even on positions that looked comfortably funded when they were opened.
When E-Minis Trade
E-mini contracts trade on CME Globex from Sunday 6:00 p.m. Eastern through Friday 5:00 p.m. Eastern, with a one-hour maintenance pause each weekday between 5:00 p.m. and 6:00 p.m. Eastern.2CME Group. E-mini S&P 500 Futures That gives roughly 23 hours of continuous access per weekday. Overnight, prices respond to earnings, foreign economic data, and news that breaks while U.S. stock markets are closed.
The CME modifies trading hours around federal holidays. Good Friday, Memorial Day, Independence Day, Thanksgiving, and Christmas Eve typically bring early closes or full closures for equity index futures.7CME Group. CME Group Holiday and Trading Hours Holiday schedules are usually finalized about two weeks in advance.
Price Limits and Circuit Breakers
The CME imposes price limits to prevent runaway moves. Overnight (5:00 p.m. to 8:30 a.m. Central), E-mini S&P 500 contracts cannot trade more than 7% above or below the prior day’s settlement. A move of more than 3.5% within a single overnight hour pauses trading for two minutes.8CME Group. S&P 500 Price Limits Frequently Asked Questions During regular U.S. hours, three market-wide circuit breakers apply: a 7% decline triggers a 15-minute halt, 13% triggers another 15-minute halt, and 20% closes the market for the rest of the day.
These halts do not prevent losses on positions you already hold. If the market gaps through a limit level, a stop order can fill well below where you placed it.
Contract Expiration and Rollover
E-mini contracts expire on a quarterly cycle: the third Friday of March, June, September, and December.9CME Group. E-mini S&P 500 Futures Calendar Open positions at expiration are cash-settled using a Special Opening Quotation calculated from the opening prices of each component stock on that Friday morning. If a stock doesn’t open that day, its last sale price is used.10CME Group. Final Settlement Procedures
Most active traders never hold to expiration. They roll the position by closing the expiring contract and opening the same position in the next quarterly month. The usual time to roll is when volume in the new month overtakes volume in the expiring one, which for the E-mini S&P 500 typically happens about a week before expiration.11CME Group. Understanding Futures Expiration and Contract Roll Wait too long and you’re trading in a thinning market where spreads widen and fills deteriorate.
Tax Treatment Under Section 1256
E-mini futures qualify as Section 1256 contracts under the Internal Revenue Code. Any gain or loss is split 60% long-term and 40% short-term for tax purposes, regardless of how long you held the position.12Office of the Law Revision Counsel. 26 USC 1256 – Section 1256 Contracts Marked to Market At 2026 rates, this blended treatment often produces a lower effective tax rate than the ordinary income rates that apply to short-term stock trades.
The catch: Section 1256 contracts are marked to market at year-end. Any position still open on December 31 is treated as if you sold it at that day’s closing price, and you owe tax on the resulting gain even though you never closed the trade. You report gains and losses on IRS Form 6781.13Internal Revenue Service. Gains and Losses From Section 1256 Contracts and Straddles (Form 6781) On the upside, Section 1256 lets you carry back net losses up to three years against prior Section 1256 gains, a flexibility stock traders don’t have.
Getting Set Up to Trade
Trading E-minis requires a dedicated futures account. A regular stock brokerage account won’t work. The Commodity Exchange Act requires any firm handling futures orders to register with the Commodity Futures Trading Commission, and National Futures Association membership is mandatory.14National Futures Association. Registration and Membership Before funding an account, verify the firm’s registration status through the CFTC’s online lookup.15Commodity Futures Trading Commission. Check Registration Status
Applications ask for financial disclosures, including income, net worth, and trading experience, which the broker uses to gauge suitability. Many brokers advertise no minimum deposit, but the practical minimum is whatever margin is required for the contract you plan to trade. Opening an account with $2,000 and trying to trade a full ES contract won’t get you far.
Market Data Fees
Real-time futures quotes are not free. The CME charges data fees based on whether you qualify as a non-professional or professional subscriber. Non-professional depth-of-market data runs about $12.10 per month per device; professional real-time display data is $134.50 per month.16CME Group. CME Group Fee List 2026 You’ll sign a subscriber agreement declaring your status during account setup. Misclassifying yourself invites an audit and retroactive charges.
Regulatory and Trading Fees
Every futures trade carries a National Futures Association assessment fee of $0.02 per side, or $0.04 round trip.17National Futures Association. NFA Assessment Fees FAQs The fee itself is trivial, but it applies to every trade along with your broker’s commission and CME exchange fees. Commissions vary widely by firm and trading volume.
Once the account is funded and market data is active, you pick a contract month, submit the order type you want (market, limit, or stop), and the order routes to the CME Globex matching engine. When it fills, the position appears in your account and the daily mark-to-market cycle begins, moving cash into or out of your account each evening until you close the trade or it expires.