E-mini Dow Jones ($5) vs Micro E-mini Dow Jones
Same underlying, different size: one YM equals 10 MYM.
Margins as of Specs checked as of How we source this
| YM | MYM | |
|---|---|---|
| Exchange | Chicago Board of Trade | Chicago Board of Trade |
| Contract unit | $5 × Dow Jones Industrial Average | $0.50 × Dow Jones Industrial Average |
| Tick size | 1 | 1 |
| Tick value | $5 | $0.50 |
| One point | $5 | $0.50 |
| Initial margin | $16,898.20 | $1,689.60 |
| Maintenance margin | $15,362 | $1,536 |
| Settlement | Cash | Cash |
| Contract months | Mar (H), Jun (M), Sep (U), Dec (Z) | Mar (H), Jun (M), Sep (U), Dec (Z) |
| Front contract | YMZ26, roll by 10 Dec 2026 | MYMZ26, roll by 10 Dec 2026 |
| Trading hours | CME Globex. Sunday open 17:00 CT, Friday close 16:00 CT, 60-minute daily maintenance break. | CME Globex. Sunday open 17:00 CT, Friday close 16:00 CT, 60-minute daily maintenance break. |
How they compare
E-mini Dow Jones ($5) (YM) and Micro E-mini Dow Jones (MYM) track the same underlying on Chicago Board of Trade. The difference is size. One point is worth $5 on YM and $0.50 on MYM, so one YM carries the same exposure as 10 MYM contracts. Ticks are 1 on YM, worth $5, and 1 on MYM, worth $0.50.
Exchange initial margin is $16,898.20 for YM and $1,689.60 for MYM, a ratio of 10.0 to 1. Margins are set product by product, so they don't always scale exactly with contract size. Both trade the same hours (CME Globex. Sunday open 17:00 CT, Friday close 16:00 CT, 60-minute daily maintenance break).
The practical difference is granularity. With MYM, position size moves in steps of $0.50 per tick rather than $5, which matters when the amount you are prepared to lose at a given stop isn't a whole number of YM contracts. Commissions and exchange fees are charged per contract, so 10 MYM usually cost more to trade than one YM; check both with your broker, along with liquidity at the times you trade.
Size a position on either with the YM calculators or the MYM calculators.
Questions
- How many MYM equal one YM?
- 10. One YM point is worth $5; one MYM point is worth $0.50.
- What is the margin difference between YM and MYM?
- Exchange initial margin is $16,898.20 for YM and $1,689.60 for MYM (as of 27 Oct 2026).
- Do YM and MYM trade the same hours?
- Yes.