Micro E-mini S&P 500 Futures Expiration and Final Settlement

MES uses March, June, September, and December contract months. Final settlement belongs to the particular expiring month, rather than to a generic MES chart or every price update that shares the root. Under Chapter 353, the final settlement price is determined on the third Friday of the delivery month. If the Index is not scheduled to publish that day, the rule specifies the first preceding business day on which it is scheduled to publish.

The expiring contract cannot trade after the primary listing exchange opens on the final-settlement determination day. This is a product-specific cutoff, not a reason to infer a clock time or an account deadline. What Micro E-mini S&P 500 futures are explains why MES must always be tied to its named contract month.

The MES final settlement price is the S&P 500 SOQ. The SOQ is based on the opening prices of the Index's component stocks, regardless of whether each stock opens at the same moment. It is therefore not a last MES trade, an ordinary opening index reading, or a real-time futures quote that can be substituted from a screen capture.

CME's final-settlement procedures explain that an opening index value can use a previous close for components that have not yet opened, whereas the SOQ waits for the applicable component-opening process. MES ends by cash settlement, not by delivery of the component shares. Cash-settled versus physically delivered futures provides the general distinction without replacing the Chapter 353 MES rule.

For an expiring MES position that remains open at termination of trading, Chapter 353 provides for payment to or receipt from the clearing house through normal variation-margin procedures using that contract's final settlement price. That exchange-level process is cash settlement. It does not convert a futures position into a basket of S&P 500 shares or promise an identical workflow to every brokerage account.

Daily settlement is an exchange-labelled daily field; final settlement is the SOQ-based closing value for the expiring contract. Neither should be silently renamed as last trade. Futures settlement price versus last trade separates those price labels before a value is compared or used in a calculation.

A roll closes, offsets, or otherwise changes exposure in one named MES contract and establishes exposure in a later month. It does not postpone the nearby contract's final-settlement event or transfer its exact SOQ record into the later agreement. A continuous chart can hide that change, which is why its displayed series must not replace the expiring month in a deadline record.

Futures contract roll mechanics explains why each side of a roll retains a distinct contract identity, quote, and settlement calendar.

For each MES month, keep the root, month-year, final-settlement calendar, final-trade cutoff relative to the primary listing exchange opening, current rulebook source, field label, source, and data time. Add any broker instruction separately: a broker may require action before an exchange process, and it is not safe to infer that instruction from a public contract calendar.

How to read futures contract specifications helps locate the governing product fields. Futures contract month codes helps resolve a compact symbol to the month whose calendar is at issue. What happens when a futures contract expires gives general lifecycle context without changing MES's SOQ and cash-settlement rules.

This guide describes standard MES expiration and final-settlement mechanics. It does not state an account-specific deadline, recommend a roll or close, provide a live settlement value, or determine a broker's handling of a position. Current CME rules, the relevant calendar, clearing procedures, and account documents govern the named contract.