Can a stop ensure the intended cash loss through a gap?
Reveal the worked answer
No.
The next executable price can be worse or temporarily absent.
Equity Index Futures · FUT-22 · Core
Limits, halts and maintenance
Why may a desired exit be unavailable?
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?
A price limit, a halt and a maintenance interval are different mechanisms. Some constrain prices, some pause activity, and none promises a counterparty at your desired exit. An old displayed quote can remain visible while comparable execution is unavailable.
Exact rules belong to the actual exchange product and broker calendar.
Understand the mechanism
A stop is an instruction, not a guaranteed price. Gaps and one-sided liquidity can move the next execution far beyond the planned trigger. A theoretical continuous hedge assumes conditions that real trading can violate.
Rules may change, so this lesson does not prescribe universal limit percentages or session clocks.
Walk through the process
Include an unavailable-exit branch in stress planning. Ask how the position and cash account behave if the next fill is much worse. Confirm the current product rules before relevant events.
Smaller intended risk based on a stop must not be confused with a contractual payoff cap.
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 fictional long plans to leave after ten adverse points, equivalent to 500 at a 50 multiplier. A discontinuous move leaves the next available trade twenty-five points lower, or 1,250 adverse before costs.
This is a gap stress example, not a specific exchange-limit report. The graph compares planned and stressed loss distances.
Limits, halts and maintenance—worked comparison
Vertical: Loss magnitude (USD)
Horizontal: Adverse exit distance (points)
1. Fictional example
Read the graph as a data table
| Adverse exit distance (points) | Fictional example |
|---|---|
| 10 | 500 |
| 25 | 1,250 |
What would invalidate the reading?
Calling a stop a guarantee or treating a limit boundary as guaranteed liquidity understates operational risk.
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
Calling a stop a guarantee or treating a limit boundary as guaranteed liquidity understates operational risk.
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: Why may a desired exit be unavailable? 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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