What is a Micro E-Mini Future?

The Micro E-mini's small size can help unlock several potential benefits: 

- Portfolio diversification for less: With futures, you can take on long or short exposure to an entire index of stocks for far less money than it would take to buy or short the same stocks or even the associated index-tracking funds.

- Capital efficiency. Futures are leveraged investments, which means it takes a relatively small initial amount of capital to establish a position in a much larger contract amount. So long as you have sufficient cash or assets in your margin account, you can hold a futures position until expiration. With Micro E-minis, that bond or margin could run from just 5%–7% of the notional value of the contract. (The notional value is calculated by multiplying the size of the contract by the current price. For example, the Micro E-mini S&P 500 contract is $5 times the price of the index. If the index is trading at 5,625, the notional value of the Micro E-mini contract would be $28,125.) 

- Flexible risk management: Selling Micro E-mini futures can help investors manage some of the risk associated with their long-term stock portfolios without actually disturbing their stock portfolios. 

- Around the clock access: With trading available nearly 24 hours a day, six days a week, traders can respond to market moving events as they occur around the globe.

As with any futures trading, if a trade goes against you, you may lose more money than you initially invested. (With a stock or bond, your potential loss is limited to the amount you invested.) In fact, any significant move against your position before expiry could lead to a margin call for you to settle. Note that your brokerage may liquidate your position, without contacting you, to meet a margin call.

Under certain (rare) market conditions, you may also find it difficult—or impossible—to close out a position. This situation can occur, for example, when a market reaches a daily price fluctuation limit (limit-up or limit-down) or market circuit breaker. 

In addition, stop orders on futures are not guaranteed an execution. Due to exchange rules based on certain conditions at the time of activation, the exchange may reject or substitute an exchange-designated limit order for the originally triggered market order.

Finally, while the nearly 24-hour trading in some products can be an advantage, it could also tempt traders and investors into making more trades than they can reasonably handle, creating the potential for larger losses. Futures trading is hard work and requires a substantial investment of time and energy. Studying charts, reading market commentary, staying on top of the news—it can be a lot for even the most seasoned trader. 

The size of the contract refers to a contract multiplier. As noted above, Micro E-minis are one-tenth the size of an equivalent E-mini contract: The S&P 500 Micro E-mini has a $5 multiplier, while the E-mini version has a $50 multiplier. This means traders will gain or lose $5 per point change in the Micro contract versus $50 per point with the regular mini contract. 

Like their E-mini counterparts, Micro E-mini futures trade on a March quarterly expiration cycle (third Friday of March, June, September and December). The tick increments follow their E-mini counterparts as follows:

Here are the contract specifications: