How many 25,000-notional micros match 75,000?
Reveal the worked answer
Three.
Aggregate notional, not the product nickname, determines size.
Equity Index Futures · FUT-20 · Core
Micro sizing
What does smaller contract size solve?
What you will learn and prerequisites
- Explain the mechanism in the lesson question.
- Reproduce the worked comparison and recognize its failure case.
Read first: What is an equity index future?
Smaller contracts permit finer exposure increments. They do not make a thesis safer or remove leverage. The combined quantity determines the actual risk.
A useful micro example begins with the desired hedge, not with the temptation to buy more because each unit looks affordable.
Understand the mechanism
If the large contract is ten times the micro, micros can reduce rounding error in a small hedge. They may also incur more transaction fees for equivalent exposure. Liquidity should be checked separately rather than assumed identical.
Smaller size is a tool for precision, not a substitute for risk analysis.
Walk through the process
Calculate target notional or dollars per point, compare feasible combinations and disclose the residual. Then evaluate spread, fees and funding requirements.
Do not use an unusually low broker deposit as the position-size rule.
Operational boundary
All figures are fictional teaching inputs, not current quotes or margin schedules. Product rules, broker requirements and usable liquidity remain separate from the model example. A planned exit and an algebraic hedge are not execution guarantees.
A worked example
A hypothetical target is 75,000 at a 5,000 index level. Each five-dollar micro represents 25,000, so three match the target. One 50-dollar-point contract represents 250,000 and would substantially overshoot it.
A ten-point move changes the three-micro position by 150, versus 500 on the larger contract. The graph scales micro notional to show how quickly small units accumulate.
Micro sizing—worked comparison
Vertical: Gross notional (USD)
Horizontal: Micro quantity
1. Fictional example
Read the graph as a data table
| Micro quantity | Fictional example |
|---|---|
| 1 | 25,000 |
| 2 | 50,000 |
| 3 | 75,000 |
| 4 | 100,000 |
| 5 | 125,000 |
| 6 | 150,000 |
| 7 | 175,000 |
| 8 | 200,000 |
| 9 | 225,000 |
| 10 | 250,000 |
What would invalidate the reading?
Accumulating many micros without summing exposure recreates the leverage supposedly avoided. Extra fees can also erode fine-grained execution benefits.
Check your understanding
Try the question before revealing its answer. These are reading checks, not trading certification or a site completion record.
What is the critical failure to avoid?
Reveal the worked answer
Accumulating many micros without summing exposure recreates the leverage supposedly avoided. Extra fees can also erode fine-grained execution benefits.
Explain this risk before treating the example as a decision rule. A correct calculation does not guarantee a favorable market outcome.
Return to the question: What does smaller contract size solve? State the observed facts, the assumptions and the failure condition separately.
Sources, assumptions and downloadable script
External references support definitions and conventions. Worked scenarios and prose are original. No current quotes or dealer inventory are claimed.
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