# A macro barometer

**FUT-24 · Equity Index Futures · Core**

**Lesson question:** How do you separate market exposure from company news?

Original fictional examples; educational writing, not live market data, orders or production approval.

## By the end

- Explain the mechanism in the lesson question.
- Reproduce the worked comparison and recognize its failure case.

**Prerequisites:** FUT-01

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.

## Calculation popup: Work the example

```text
Residual=stock return−Beta×market return
```

Use matching units and the explicitly hypothetical inputs.

1. −4%−1.5×(−1%)=−2.5 percentage points.

**Result:** Residual −2.5 points; not automatically alpha.

## Graph: A macro barometer—worked comparison

**Horizontal:** Actual / modeled / residual  
**Vertical:** Return (percentage points)

Fictional data from the written example. The chart organizes the comparison; its shape is not a forecast.

Complete numerical data are embedded in `scripts/equity-futures/FUT-24.js` and displayed as an accessible table in the HTML lesson.

## 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

### What residual follows from −4% actual, −1% market and Beta 1.5?

**Answer:** −2.5 percentage points.

**Why:** −4−(1.5×−1)=−2.5.

### What is the critical failure to avoid?

**Answer:** Attributing an entire stock move to futures ignores company events. Treating a regression residual as guaranteed alpha is another overreach.

**Why:** Explain this risk before treating the example as a decision rule. A correct calculation does not guarantee a favorable market outcome. **Critical risk check.**

## Takeaway

Return to the question: How do you separate market exposure from company news? State the observed facts, the assumptions and the failure condition separately.

## References and provenance

The cited references support definitions and conventions. The teaching prose, tickets and numerical scenarios are original; they are not attributed as historical market observations.

- [CME Introduction to Futures](https://www.cmegroup.com/education/courses/introduction-to-futures)

- [CME Micro E-mini overview](https://www.cmegroup.com/education/courses/micro-e-mini-futures/micro-e-mini-futures-products-overview)