TL;DRFutures contracts that are 1/10th the size of their standard counterparts. Micro E-mini S&P 500 (MES) is $5 per point instead of $50. Ideal for learning, testing strategies, and proper position sizing on smaller accounts.
Micro futures are smaller versions of popular contracts, typically 1/10th the size of the standard E-mini. The CME launched micro E-mini index futures in 2019, and they quickly became some of the most actively traded contracts in the world.
MES (Micro E-mini S&P 500) is $5 per point instead of $50 on ES. MNQ (Micro E-mini Nasdaq) is $2 per point instead of $20 on NQ. MGC (Micro Gold) is $10 per point instead of $100 on GC. MCL (Micro Crude) represents 100 barrels instead of 1,000 on CL.
Micros are ideal for three groups. First, new traders learning the mechanics of futures. You can practice live execution, manage real positions, and experience real P&L without risking $50 per point. The learning is the same, but the cost of mistakes is 1/10th.
Second, smaller accounts that need precise position sizing. If your risk calculator says you should trade 0.3 ES contracts, you can trade 3 MES contracts instead. This lets accounts under $25,000 trade futures with proper risk management.
Third, experienced traders who want to test new strategies with real money before scaling up. Paper trading doesn't replicate the psychology of real money. Micros let you test with skin in the game while keeping the stakes manageable.
Micro contracts trade on the same exchange (CME Globex) during the same hours as their full-size counterparts. The price movements are identical because they track the same underlying market.
The differences are in tick value, margin requirements, and liquidity. MES requires roughly $1,265 in initial margin compared to $12,650 for ES. The tick value is $1.25 vs $12.50.
Liquidity on micros is excellent for retail-sized orders (1-20 contracts) but thinner than ES for larger sizes. The spread is usually one tick during RTH, same as ES. For most retail traders, the liquidity difference is negligible.
A common progression: start with 1-2 MES contracts while learning. As your account grows and your strategy proves consistent, increase to 5-10 MES. When you're consistently trading 10 MES, consider switching to 1 ES (identical exposure, better fills on large orders, lower commission per unit of exposure).
The transition from micro to mini is a psychological milestone. Suddenly every tick is worth 10x more. Many traders who were calm on micros start making emotional decisions on minis. If this happens, go back to micros until the emotional response fades.
Position sizing with micros
Your account is $10,000. You want to risk 1% ($100) per trade with a 10-point stop on the S&P.
ES: 10 points x $50 = $500 risk per contract. Too large. MES: 10 points x $5 = $50 risk per contract. You can trade 2 MES contracts for exactly $100 risk (1% of your account). Micros make proper position sizing possible on a $10,000 account.
Strategy testing on micros
You developed a new scalping strategy in backtesting. Before risking full-size contracts, you want to validate it live.
Trade 1-2 MES contracts for 2-4 weeks. Track fills, slippage, and actual P&L vs. backtest expectations. If the strategy holds up, scale to 5-10 MES. If it fails, you lost 1/10th of what you would have lost on ES.
Thinking micros are risk-free because they're small
The leverage ratios are identical to full-size contracts. Trading 10 MES is the same risk as 1 ES. A $10,000 account trading 10 MES with no stop can still lose thousands.
Over-trading micros because the per-contract risk feels small
$5 per point feels manageable, so some traders open 20-30 contracts without realizing they now have 2-3 ES equivalents of exposure. Always calculate total exposure in dollar terms.
Staying on micros too long when your account size justifies minis
If you're consistently trading 10+ MES, you're paying 10x the commissions for the same exposure as 1 ES. Transition to minis when your account and risk management support it.