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Strategy #0000000126 · FX and cross-currency funding

Covered-interest-parity deviations
Enter spot/forward rates, both interest rates, tenor, notional, transaction and funding costs.

Covered interest parity links spot and forward exchange rates to two interest rates. Brief deviations may reflect quotes and frictions; persistent post-crisis cross-currency bases also reflect bank balance sheets, funding and regulation, so theoretical arbitrage may not be executable. This page computes a theoretical forward and compares an entered quote with costs.

Beginner-friendlyAbout 8 minutesEvidence and practical analysis

Three ways in

Understand the story. Then inspect the risk.

Start with a familiar situation, check the payoff, then test how the numbers change.

The idea · in two minutes

After a forward-rate parity deviation, how much remains after transaction and funding costs?

Covered interest parity links spot and forward exchange rates to two interest rates. Brief deviations may reflect quotes and frictions; persistent post-crisis cross-currency bases also reflect bank balance sheets, funding and regulation, so theoretical arbitrage may not be executable. This page computes a theoretical forward and compares an entered quote with costs.

Enter spot/forward rates, both interest rates, tenor, notional, transaction and funding costs.

Omits bilateral funding rates, collateral, credit lines, cross-currency basis swaps and market depth.

  • Input assumptionsEnter spot/forward rates, both interest rates, tenor, notional, transaction and funding costs.
  • Model outputOmits bilateral funding rates, collateral, credit lines, cross-currency basis swaps and market depth.

Illustrative research examples only. They are not live signals or a recommendation.

Variants · same family, different risk levers

Models, contract terms and implementation can change results.

Compare relevant mechanisms and execution assumptions.

Related strategyRelationshipWhat changesNew cost or risk
Base scenarioManual inputsCovered interest parity links spot and forward exchange rates to two interest rates. Brief deviations may reflect quotes and frictions; persistent post-crisis cross-currency bases also reflect bank balance sheets, funding and regulation, so theoretical arbitrage may not be executable. This page computes a theoretical forward and compares an entered quote with costs.Omits bilateral funding rates, collateral, credit lines, cross-currency basis swaps and market depth.
Conservative versionHigher cost/lossStress higher costs, larger losses or lower liquidity.May lower scenario returns.
Validation versionData reviewTest model inputs with consistent contracts and timestamps.Needs licensed, representative data.

Omits bilateral funding rates, collateral, credit lines, cross-currency basis swaps and market depth.

Read beyond the summary

References

Primary sources and research used to describe the strategy and its limits.

  1. 01Du, Tepper & Verdelhan (2018), Deviations from Covered Interest Rate Parityresearch