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Market Update

Steepening yield curve increases cost of GBP interest rate hedging

March 5, 2021
  • Jackie Bowie headshot


    Jackie Bowie

    Managing Partner, Board Member
    Head of EMEA

    Real Estate | London


A series of government bond selloffs have jolted financial markets since the start of 2021. In the UK, one consequence is a sharp rise in the cost of hedging GBP interest rate exposures. Having started the year at 0.08%, the five-year swap rate on 3-month GBP LIBOR hit 0.52% at the end of February. Prices for five-year interest rate caps nearly tripled over the same period.

Source: Bloomberg and Chatham Financial

With the Bank of England’s base rate still pegged at a historic low of 0.1%, these moves are due to a market-driven steepening of the yield curve rather than any change in monetary policy. Far from suggesting rate rises, members of the Monetary Policy Committee have been debating whether to use negative rates or more quantitative easing to stimulate the economy. But underpinning this policy response is the assumption that inflation will remain unproblematically low, allowing the BoE to keep monetary conditions at “emergency” levels.

This assumption is now being questioned. Unlike in previous downturns, average household cash balances have increased during the pandemic due to a variety of government support measures. Meanwhile, lockdowns have severely constricted supply in a number of sectors, and bottlenecks in commodities and shipping are already becoming apparent. As vaccines allow society to reopen, the release of pent-up demand could well combine with restricted supply to increase prices. A number of economists warn of structural factors that could turn such an inflationary burst into a longer term trend.

Worries about inflation cause the yield curve to steepen for two reasons. First, investors are betting that the MPC would react to sustained price increases by raising the base rate higher than currently anticipated. As a result, lenders demand a higher interest rate for longer term borrowing. Second, gilt markets fear that the BoE’s quantitative easing programme would be reduced or halted, meaning that government bonds would lose a key buyer. This reduces prices for longer term bonds, again driving yields up.

It is hardly unusual for an economic recovery to be heralded by fears of inflation and bond market jitters. This time, though, the rebound is taking place after a combination of monetary expansion and government spending that has no peacetime precedent. It is unlikely that interest rates have just had their last dramatic month of the year.

What does this mean for interest rate hedging? Many borrowers use the five-year swap rate as a proxy for the cost of debt in their investment cases for new deals. Appraisals that were conducted in January now require material changes to their assumptions. Extended completion timetables also raise justifiable concerns that funding costs could increase further in the coming weeks and months. As a result, pre-hedging is being considered in many circumstances – either through flexible options or forward hedging.

Investors had no shortage of risks to worry about coming into 2021, but the prospect of higher interest rates was not one of them. Given the dovish noises emanating from central banks around the world, this is unsurprising. But recent weeks have provided a vivid illustration of the limitations policymakers face in controlling real funding costs. Ultimately, it is the market’s view of interest rate risk that determines borrowers cost of funds – not central banks’.

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About the author

  • Jackie Bowie

    Managing Partner, Board Member
    Head of EMEA

    Real Estate | London

    Jackie Bowie is a Managing Partner and Head of EMEA providing guidance and strategy for the European and APAC regions, with over 25 years of financial markets expertise.


Chatham Hedging Advisors, LLC (CHA) is a subsidiary of Chatham Financial Corp. and provides hedge advisory, accounting and execution services related to swap transactions in the United States. CHA is registered with the Commodity Futures Trading Commission (CFTC) as a commodity trading advisor and is a member of the National Futures Association (NFA); however, neither the CFTC nor the NFA have passed upon the merits of participating in any advisory services offered by CHA. For further information, please visit

Transactions in over-the-counter derivatives (or “swaps”) have significant risks, including, but not limited to, substantial risk of loss. You should consult your own business, legal, tax and accounting advisers with respect to proposed swap transaction and you should refrain from entering into any swap transaction unless you have fully understood the terms and risks of the transaction, including the extent of your potential risk of loss. This material has been prepared by a sales or trading employee or agent of Chatham Hedging Advisors and could be deemed a solicitation for entering into a derivatives transaction. This material is not a research report prepared by Chatham Hedging Advisors. If you are not an experienced user of the derivatives markets, capable of making independent trading decisions, then you should not rely solely on this communication in making trading decisions. All rights reserved.