Updated for the 2026-2027 CFA® Level II curriculum.
A fully collateralized commodity futures position earns return from three separate sources, not one. Level II asks candidates to split total return into these sources and interpret what each one tells you about the position. This matters because excess return and total return are different numbers, and mixing them up produces a wrong answer on an otherwise simple calculation.
Quick Answer
Total return on a fully collateralized commodity futures position equals spot return plus roll return plus collateral return. Spot return captures price change on the underlying commodity. Roll return reflects the cost or benefit of rolling futures contracts forward. Collateral return is the yield earned on the cash backing the position. Candidates must add all three, not just the first two, to reach total return.
Key Takeaways
Total return has three components: spot return, roll return, and collateral return.
Excess return equals spot return plus roll return. It excludes collateral return.
A fully collateralized position pairs futures exposure with cash or cash equivalents equal to the exposure notional. The collateral contribution depends on the yield credited under the stated convention.
A negative roll return does not mean the position lost money overall. Collateral return can offset part or all of that loss.
Same-period contributions are added. Sequential period returns are compounded, not added.
Omitting collateral return or double counting it are the two most common calculation errors on this topic.
What You Need to Know for CFA Level II
State the LOS task precisely: describe, calculate, and interpret total return for a fully collateralized commodity futures contract.
Know that full collateralization means the investor holds cash or cash equivalents equal to the notional value of the futures contract.
Distinguish total return (all three components) from excess return (spot plus roll only).
Treat the formula below as an additive attribution for a single stated period. It is not a compounding identity across multiple periods.
Confirm whether an exhibit gives same-period contributions or sequential period returns before adding anything.
Define a Fully Collateralized Position
A fully collateralized commodity futures position pairs a long futures contract with cash (or a cash equivalent) equal to the contract's notional value. The investor does not borrow to fund the position and does not own the physical commodity. The futures contract provides price exposure. The collateral provides a cash return.
This structure separates three distinct sources of return:
Spot return. The return attributable to the change in the spot price of the underlying commodity over the period.
Roll return. The return attributable to rolling a futures position from an expiring contract into a new contract, driven by the shape of the futures curve (contango or backwardation).
Collateral return. The return earned on the cash backing the position, typically approximated by a short-term risk-free rate.
Excess return is spot return plus roll return. It is the return the position earns from commodity price exposure alone, before adding the return on collateral. Many problems test whether a candidate recognizes that excess return and total return are not the same figure. Total return adds collateral return on top of excess return.
Calculate and Interpret Return Contributions
When an exhibit states same-period contributions in percentage points, add them directly to find total return. When an exhibit instead gives sequential period returns, compound them rather than adding, because each period's return applies to a changed base.
Total return formula
where:
= total return on the fully collateralized position,
= spot return contribution for the period,
= roll return contribution for the period, and
= collateral return contribution for the period.
This is an additive attribution for one stated period. State the time basis, sign convention, and reinvestment assumption before computing. Do not treat the equation as a general multi-period compounding formula.
For a long position under an unchanged spot price and term structure, contango commonly creates a negative roll contribution as contracts converge. Entering the later contract does not itself crystallize a loss equal to the quote gap. The subsequent futures price path determines realized profit or loss. If collateral return is positive and large enough, it can offset part or all of the roll loss, and the position can still post a positive total return. Interpreting a negative roll contribution as the entire outcome is a common error this note addresses directly in the traps section below.
Working Example
An investor holds a fully collateralized long position in a commodity futures contract for one period. The exhibit reports the following same-period contributions:
Component | Contribution |
|---|---|
Spot return | 5.0% |
Roll return | -2.0% |
Collateral return | 3.0% |
Assume no fees and full collateralization, so the cash backing the position equals the contract notional value.
Step I: Calculate excess return.
Step II: Calculate total return.
Step III: Check both results.
Excess return check: 3.0%, confirmed.
Total return check: 6.0%, confirmed.
The stated negative roll contribution reduces excess return to 3.0%. It is consistent with the usual convergence drag on long contango exposure under stable conditions, but the contribution alone does not establish the curve's shape. Adding the separate 3.0% collateral contribution produces total return of 6.0%. Judge the outcome from all three components together.
Common Exam Traps
Omitting collateral yield
A candidate calculates spot return plus roll return and stops, reporting 3.0% as the final answer in the example above. This gives excess return, not total return. The correct total return is 6.0%, because the position is fully collateralized and earns cash yield on top of commodity price exposure.
Adding collateral twice
A candidate who already received a total return figure adds collateral return a second time, assuming it was not yet included. Check whether the stated figure is already total return or only excess return before adding anything further.
Adding sequential period returns
A candidate treats a series of period-over-period returns as additive contributions and sums them directly. Sequential period returns must be compounded, since each period applies to a new base value. Only same-period component contributions, as defined in a specific exhibit, are added.
Interpreting a negative roll contribution as the whole return
A candidate sees a negative roll return and concludes the position lost money overall. In the working example, roll return is -2.0%, yet total return is a positive 6.0% once collateral return of 3.0% is included. Always complete all three components before judging the outcome.
Practice Question
A fully collateralized commodity futures position reports the following same-period contributions: spot return of 4%, roll return of -3%, and collateral return of 2%. What is the total return on the position?
3%
1%
9%
Correct Answer: A
Total return of 3% reflects a modest spot gain reduced by a roll loss and then partially restored by collateral yield. This confirms that total return requires all three components, with correct signs applied to each.
Calculations/Workings.
Step I: Identify all three components
Spot return 4%, roll return -3%, collateral return 2%.
Step II: Apply the total return formula
Why Other Options Are Wrong
Option B: Omitting collateral return produces only excess return: 4% + (-3%) = 1%. This ignores the cash yield earned on the collateral backing the position.
Option C: Reversing the sign of the roll return produces 9%: 4% + 3% + 2% = 9%. The roll contribution is stated as a loss of 3%, not a gain, and must be added as a negative value.
Continue Your CFA Level II Prep With KeyPoint
Use structured lessons, practice questions, mock exams, and progress tracking to focus on the time you have left
FAQs About Commodity Futures Total Return: Spot, Roll, and Collateral Return
What makes a futures position fully collateralized?
A position is fully collateralized when the investor holds cash or a cash equivalent equal to the full notional value of the futures contract, rather than posting only a margin fraction of that value.
How do excess return and total return differ?
Excess return includes only spot return and roll return. Total return adds collateral return on top of excess return, capturing the cash yield earned on the collateral backing the position.
Is collateral return always the interest earned on initial margin?
No. A fully collateralized benchmark commonly credits a return on cash or cash equivalents backing the full exposure, subject to its methodology. Margin is only part of that backing. Use the stated eligible collateral, rate, and cash-flow convention instead of applying a yield to the margin amount alone.