A currency hedge can neutralise one exchange-rate exposure while introducing a financing cost that deserves separate attention. BIS research on the cross-currency basis examines the difference between obtaining a currency through a swap and borrowing it directly. The basis is a funding comparison, rather than a simple prediction of the next spot exchange rate. BIS Quarterly Review: Covered interest parity lost
Follow the evidence
Trace how the event could reach markets, then inspect a competing explanation.
Compare explanations
Switch lenses to see what each account explains—and what remains uncertain.
WFN analysis: imagine a company comparing a direct foreign-currency loan with domestic borrowing followed by a currency swap. To assess the choice, the analyst needs a consistent notional amount, maturity, payment schedule and credit context. Comparing unrelated tenors or borrower terms can create an apparent discrepancy that comes from the comparison itself. Collateral and counterparty terms belong in the review as well. The textbook relationship provides a useful starting point, but a real financing decision includes the terms available to the actual borrower. A price visible to a large intermediary may not represent a smaller company’s accessible funding route. The article therefore makes no claim of a universally available arbitrage. Forward points also deserve careful wording. The agreed forward conversion price can reflect the cost of carrying a hedged position across currencies. Treating that price as a consensus forecast for future spot confuses a contract valuation with a directional expectation. An analyst can report the forward quote accurately while leaving the future spot outcome uncertain.
WFN analysis: imagine a company comparing a direct foreign-currency loan with domestic borrowing followed by a currency swap. To assess the choice, the analyst needs a consistent notional amount, maturity, payment schedule and credit context. Comparing unrelated tenors or borrower terms can create an apparent discrepancy that comes from the comparison itself. Collateral and counterparty terms belong in the review as well. The textbook relationship provides a useful starting point, but a real financing decision includes the terms available to the actual borrower. A price visible to a large intermediary may not represent a smaller company’s accessible funding route. The article therefore makes no claim of a universally available arbitrage. Forward points also deserve careful wording. The agreed forward conversion price can reflect the cost of carrying a hedged position across currencies. Treating that price as a consensus forecast for future spot confuses a contract valuation with a directional expectation. An analyst can report the forward quote accurately while leaving the future spot outcome uncertain.
A transparent hedge memo identifies the quotation convention, tenor and instruments used in the funding comparison. It states whether its inputs are executable quotes, indicative observations or illustrative figures. It also explains the proposed mechanism when attributing a change to hedging pressure. The BIS framework supports asking that question; it does not prove the cause of every daily spread movement. For broader FX analysis, compare the basis with independently sourced evidence about policy rates, financing conditions and counterpart currencies. Keep each evidence set’s date visible. A basis move may be relevant to a financing story without implying a one-way spot trade. The useful conclusion is a clearer understanding of the hedge’s cost and the limits of the available comparison.
The comparison behind covered interest parity
Covered interest parity links spot and forward exchange rates with interest rates for the same horizon when the foreign-currency exposure is hedged. A non-zero cross-currency basis indicates a difference between the implied borrowing cost through the swap market and the corresponding direct borrowing cost. BIS Quarterly Review: Covered interest parity lost
The September 2016 BIS study examines persistent deviations from that relationship. Its explanation considers hedging demand together with limits on intermediaries’ balance-sheet capacity. This is a dated research finding about market structure. It is not evidence of the basis level or a particular institution’s funding conditions on 5 October 2026. BIS Quarterly Review: Covered interest parity lost
Build the hedge comparison leg by leg
WFN analysis: imagine a company comparing a direct foreign-currency loan with domestic borrowing followed by a currency swap. To assess the choice, the analyst needs a consistent notional amount, maturity, payment schedule and credit context. Comparing unrelated tenors or borrower terms can create an apparent discrepancy that comes from the comparison itself.
Collateral and counterparty terms belong in the review as well. The textbook relationship provides a useful starting point, but a real financing decision includes the terms available to the actual borrower. A price visible to a large intermediary may not represent a smaller company’s accessible funding route. The article therefore makes no claim of a universally available arbitrage.
Forward points also deserve careful wording. The agreed forward conversion price can reflect the cost of carrying a hedged position across currencies. Treating that price as a consensus forecast for future spot confuses a contract valuation with a directional expectation. An analyst can report the forward quote accurately while leaving the future spot outcome uncertain.
Make the source and assumptions visible
A transparent hedge memo identifies the quotation convention, tenor and instruments used in the funding comparison. It states whether its inputs are executable quotes, indicative observations or illustrative figures. It also explains the proposed mechanism when attributing a change to hedging pressure. The BIS framework supports asking that question; it does not prove the cause of every daily spread movement.
For broader FX analysis, compare the basis with independently sourced evidence about policy rates, financing conditions and counterpart currencies. Keep each evidence set’s date visible. A basis move may be relevant to a financing story without implying a one-way spot trade. The useful conclusion is a clearer understanding of the hedge’s cost and the limits of the available comparison.