What residual follows from −4% actual, −1% market and Beta 1.5?
Reveal the worked answer
−2.5 percentage points.
−4−(1.5×−1)=−2.5.
Equity Index Futures · FUT-24 · Core
A macro barometer
How do you separate market exposure from company news?
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?
Broad futures help place a stock's move in context. They do not explain every constituent. A stock can have company-specific exposure and a changing relationship with the index.
Beta and correlation are estimates, not fixed physical constants.
Understand the mechanism
Rates, currencies and other markets can contribute information, but their correlations with equity futures vary by context. Avoid permanent rules such as one market rising always forcing another down.
A simple market model can identify an unexplained residual; it does not prove that residual is mispricing or must reverse.
Walk through the process
Compare synchronized returns using an appropriate index and stated Beta estimate. Then investigate sector and company information. Use the residual as a research question.
For a hedge, distinguish common-market risk from idiosyncratic risk the future cannot remove.
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 stock falls 4% while the market reference falls 1%. At estimated Beta 1.5, a simple market-related component is −1.5%. Actual minus modeled is −2.5 percentage points.
That residual may reflect company news, changed Beta or omitted exposures. The graph compares actual return, modeled component and residual rather than claiming an automatic rebound.
Open the calculation without leaving this lesson
A macro barometer—worked comparison
Vertical: Return (percentage points)
Horizontal: Actual / modeled / residual
1. Fictional example
Read the graph as a data table
| Actual / modeled / residual | Fictional example |
|---|---|
| 1 | -4 |
| 2 | -1.5 |
| 3 | -2.5 |
What would invalidate the reading?
Attributing an entire stock move to futures ignores company events. Treating a regression residual as guaranteed alpha is another overreach.
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
Attributing an entire stock move to futures ignores company events. Treating a regression residual as guaranteed alpha is another overreach.
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: How do you separate market exposure from company news? 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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