Covered Interest Parity Arbitrage

93 Pages Posted: 5 Dec 2016 Last revised: 16 Mar 2019

See all articles by Dagfinn Rime

Dagfinn Rime

BI Norwegian Business School

Andreas Schrimpf

Bank for International Settlements (BIS) - Monetary and Economic Department

Olav Syrstad

Norges Bank

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Date Written: March 11, 2019


We show that it is crucial to account for the heterogeneity in funding costs, both across banks and across currency areas, in order to understand recently documented deviations from Covered Interest Parity (CIP). When CIP arbitrage is implemented accounting for marginal funding costs and realistic risk-free investment instruments, the no-arbitrage relation holds fairly well for the majority of market participants. A narrow set of global high-rated banks, however, does enjoy riskless arbitrage opportunities. Such arbitrage opportunities emerge as an equilibrium outcome as FX swap dealers set prices to avoid inventory imbalances. Low-rated banks find it attractive to turn to the FX swap market to cover their U.S. dollar funding, while swap dealers elicit opposite (arbitrage) flows by high-rated banks. Such arbitrage opportunities are difficult to scale, with funding rates adjusting as soon as arbitrageurs increase their positions.

Keywords: Covered Interest Parity, Money Market Segmentation, Funding Liquidity Risk Premia, FX Swap Market, US Dollar Funding

JEL Classification: E43, F31, G15

Suggested Citation

Rime, Dagfinn and Schrimpf, Andreas and Syrstad, Olav, Covered Interest Parity Arbitrage (March 11, 2019). Available at SSRN: or

Dagfinn Rime (Contact Author)

BI Norwegian Business School ( email )

Nydalsveien 37
Oslo, 0442
+47-46410507 (Phone)


Andreas Schrimpf

Bank for International Settlements (BIS) - Monetary and Economic Department ( email )

Centralbahnplatz 2
CH-4002 Basel

Olav Syrstad

Norges Bank ( email )

P.O. Box 1179
Oslo, N-0107

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