What Are E-Nano Futures? Full Guide to CME’s New Contracts

E-nano futures are CME Group’s newest equity index contracts, launching August 24, 2026, at one-tenth the size of Micro E-mini futures and one-hundredth the size of standard E-mini futures. They cover the S&P 500, Nasdaq-100, Russell 2000, and Dow Jones Industrial Average, trade nearly 23 hours a day, and are built for futures trading in smaller, more precise increments than any equity index product CME has listed before.

If you’ve been priced out of a full-size contract by record index levels, or you’ve outgrown the granularity a Micro E-mini gives you, E-nano futures are the answer CME just built. Here’s exactly how they work, how they compare to the contracts you already trade, and what to check before you place your first order on a cloud-based futures trading platform.

What Is an E-nano Future?

An E-nano future is a financially settled equity index futures contract with a multiplier ten times smaller than its Micro E-mini counterpart. Where the Micro E-mini S&P 500 (MES) carries a $5 multiplier, the E-nano S&P 500 (NES) carries a $0.50 multiplier. That single change compresses the dollar risk per point of index movement by a factor of ten without altering anything else about how the contract tracks its underlying benchmark.

CME describes the launch as an effort “to enhance market accessibility for all participants,” and the timing lines up with index levels that have made even Micro contracts a larger notional exposure than what many retail accounts want to size into. At a hypothetical S&P 500 level of 7,000, a full E-mini contract carries $350,000 of notional exposure, a Micro carries $35,000, and an E-nano carries just $3,500.

E-nano Contract Specifications

Four products launch on August 24, 2026, pending regulatory review. Three list under CME rules and one lists under CBOT rules, which matters if you’re pulling margin or fee schedules by exchange.

Notice that E-nano tick sizes are double the tick size of the corresponding Micro E-mini and E-mini contracts. CME made this choice deliberately: E-nano futures settle daily to the same index price as their Micro and E-mini counterparts, but round to the nearest tick, which avoids rounding errors created by the fractional multiplier. In practice, this means the E-nano moves in bigger index-point increments than the Micro, but the dollar value per tick still lands close to what a Micro trader is used to.

E-nano vs. Micro E-mini vs. E-mini: Contract Size Comparison

The core difference across all three contract families is size and precision, not the underlying index or the settlement mechanics. All three track the identical benchmark and share the same 23-hour Globex session.

We’ll break this comparison down further, including margin-per-point math and which contract size fits which account size, in our companion post on choosing the right contract size for your strategy.

Trading Hours, Settlement, and Contract Months

E-nano futures trade on Globex from Sunday 6:00 p.m. ET through Friday 5:00 p.m. ET, with a daily one-hour maintenance break from 5:00 p.m. to 6:00 p.m. ET. CME lists the nearest two quarterly months on the standard March, June, September, December cycle for each E-nano product.

Daily settlement is calculated from the 30-second volume-weighted average price of the corresponding E-mini contract’s Globex trades between 3:59:30 p.m. and 4:00:00 p.m. ET. Final settlement on the third Friday of the contract month uses the Special Opening Quotation, the same mechanism that settles the E-mini and Micro E-mini versions of each index. E-nano futures are financially settled in cash. Nothing physically changes hands.

Margin, Offsets, and Fees

CME hasn’t published fixed margin figures because Equity Index margins move with market conditions and volatility, and E-nano margins will be set proportionally to the Micro E-mini schedule once trading begins. Expect to see them appear on CME’s standard margin lookup tools shortly before the August 24 launch.

One detail worth knowing before you trade: E-nano futures are fungible for offset purposes against their Micro E-mini and E-mini counterparts, at ratios of 10:1 against the Micro and 100:1 against the full E-mini. Your clearing broker submits the offset request directly to CME’s clearinghouse. E-nano volume does not count toward CME’s existing Equity Index volume discount tiers, and the contracts are not eligible for block trading or BTIC.

Why This Matters for Futures Trading

The practical effect of a $3,500 notional contract is that traders can size positions in increments that were never available before. A trader hedging a small portfolio, scaling into a swing position, or testing a new strategy no longer has to jump from zero contracts to one Micro contract, an increment that can represent a meaningful swing in a small account. E-nano futures let you scale exposure in units roughly a tenth the size, which is a real structural change in how precisely retail and small institutional accounts can manage equity index risk.

This also matters for anyone comparing futures trading vs. stock trading. A trader who wants S&P 500 exposure without buying 100 shares of SPY, or who wants to manage risk more granularly than a single ETF share allows, now has a listed derivative sized closer to that use case than any prior CME product.

Getting Ready to Trade E-nano Futures

E-nano futures will be available through the same channels as every other CME Equity Index product: your futures commission merchant or introducing broker, on whatever futures trading platform you already use for Micro or E-mini contracts. No new account type or special approval is required beyond the futures trading permissions you already hold. If you don’t currently have futures trading enabled, that’s the first step, and you can start that process on Ironbeam’s account opening page before the contracts list.

We’ll publish exact margin figures, a full contract-size comparison, and a step-by-step guide to placing your first E-nano trade as CME finalizes the remaining details ahead of August 24.

Frequently Asked Questions

When do E-nano futures launch?
CME Group plans to launch E-nano equity index futures on August 24, 2026, pending regulatory review.

What is the contract size of an E-nano S&P 500 future?
The E-nano S&P 500 future (NES) has a $0.50 multiplier per index point, one-tenth the size of the Micro E-mini S&P 500’s $5 multiplier and one-hundredth the size of the full E-mini S&P 500’s $50 multiplier.

Can I offset an E-nano position against a Micro E-mini position?
Yes. E-nano futures can be offset against Micro E-mini positions at a 10:1 ratio and against E-mini positions at a 100:1 ratio, through a request your clearing broker submits directly to CME’s clearinghouse.

Do E-nano futures trade the same hours as other CME equity index futures?
Yes. E-nano futures trade on Globex from Sunday 6:00 p.m. ET to Friday 5:00 p.m. ET, with a daily maintenance break from 5:00 p.m. to 6:00 p.m. ET, matching the E-mini and Micro E-mini trading calendar.

Are E-nano futures cash-settled?
Yes. E-nano equity index futures are financially settled against the Special Opening Quotation on the third Friday of the contract month, the same mechanism used for E-mini and Micro E-mini futures.