Gold trading basics · Lesson 68 of 100

Gold Basis Risk: Explain Why a Futures Hedge Can Leave a Residual Loss

Define physical-minus-futures basis and calculate a hedge residual caused by unequal price changes, separate from costs and quantity mismatch.

Basis Can Change: instructional diagram for lesson 68 — CYGURU GOLD · Original lesson schematic. Examples are illustrative.

A hedge connects related prices rather than identical promises

A physical holding and a futures contract can share substantial exposure to gold while differing in location, delivery terms, quality, maturity, currency and transaction costs. Define basis explicitly before measuring the hedge. This lesson uses physical reference price minus futures price, both stated in dollars per fine ounce on aligned timestamps. Another source may reverse that sign. A change in the relationship can produce residual P&L even when equal ounces offset a common directional move. The word hedged therefore requires a statement of which risk is reduced and which relationships remain variable.

Calculate the residual from both instruments

Imagine 100 fine ounces of physical exposure marked at 2,000 per ounce and one short hypothetical 100-ounce futures contract entered at 2,010. Initial basis is −10. Later the physical reference falls to 1,950 while futures falls to 1,965. Physical marked loss is USD 5,000; the short futures price gain is USD 4,500. Combined gross residual is −USD 500. New basis is −15, a five-unit decline, and 100 × (−5) gives the same residual. The example assumes matching quantities, unchanged ownership and no intervening cash flows. It does not include dealer exit deductions, storage, fees or financing.

Keep basis changes separate from quantity mismatch

If the actual physical fine weight is 95 ounces while the hedge covers 100, an additional five-ounce short exposure remains. That is a hedge-size mismatch, not the same mechanism as unequal physical and futures price changes. Purity errors, gross-versus-fine weight confusion and changing inventory can create this mismatch unintentionally. Verify units before attempting a sophisticated correlation or regression hedge ratio. A mathematically optimized historical ratio also does not guarantee a stable future relationship. Use separate rows for common price sensitivity, basis change, unmatched quantity and costs so the residual can be explained rather than attributed to one vague hedging error.

Equal-ounce physical hedge · invented basis change
Component	Initial	Later	Price P&L
100 physical fine oz	2,000	1,950	−$5,000
100 short futures oz	2,010	1,965	+$4,500
Physical minus futures	−10	−15	−$500 gross residual
After stated $80 fees			−$580

Equal ounces do not eliminate basis changes. Funding timing, local premiums and liquidation deductions are separate considerations.

Understand why timing and location matter

A local physical bid can include product-specific availability, transport constraints and a premium that changes independently of the exchange reference. A hedge that closes before the inventory sale leaves a period of unhedged price exposure; one closed later can leave the reverse gap. Spot observations, futures settlement and dealer fills must be time-aligned before comparing changes. Do not assume that convergence at futures expiry eliminates every local premium or transaction cost. Whether delivery or an exchange-for-physical arrangement can resolve a relationship depends on eligibility, contract terms and counterparties. Those are operational questions to verify, not assumptions supplied by the chart.

Distinguish marked offset from cash availability

The physical asset may lose marked value while futures gains are credited through settlement, or physical gains may coexist with futures collateral calls. A hedge can reduce combined economic sensitivity yet create near-term cash demands. Record when collateral is required, where the asset is held and how quickly it can be sold or transferred. A valuation increase in a stored bar does not automatically fund a broker account before a deadline. Stress the basis and liquidity paths jointly rather than evaluating only the final combined gain. This is especially important when different intermediaries or currencies sit between the two positions.

Practice task: reconcile a hedge explanation

Reproduce the −USD 500 residual using both the two-leg ledger and the basis-change formula. Add hypothetical USD 80 fees and confirm a −USD 580 result under the expanded assumptions. Then repeat with 95 physical ounces to isolate the additional size mismatch. Explain which component would remain even with perfectly matched ounces. Your report should define the basis sign, quote side, timestamps, fine weight and hedge multiplier. End by naming one condition that would make the local physical price diverge from the futures reference without claiming that the divergence must be temporary or easily arbitraged.

Gold Basis Risk: Explain Why a Futures Hedge Can Leave a Residual Loss

A hedge connects related prices rather than identical promises

Calculate the residual from both instruments

Keep basis changes separate from quantity mismatch

Understand why timing and location matter

Distinguish marked offset from cash availability

Practice task: reconcile a hedge explanation

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