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Article

SONIA monthly transaction activity — August 2020

Date:
August 24, 2020
  • tanner robb headshot

    Authors

    Tanner Robb

    Director
    Hedging and Capital Markets

    Real Estate | London

  • Kamil Zmijewski headshot

    Authors

    Kamil Żmijewski

    Hedging and Capital Markets

    Real Estate | Kraków

Summary

Each month, our team discusses the current state of GBP LIBOR and SONIA markets, exploring both the performance of the rates as well as the borrowing and hedging markets that surround them.

Since the UK Financial Conduct Authority’s 2017 announcement that LIBOR would not be supported beyond 2021, market participants have been progressing towards the adoption of replacement indices. This process has moved slowly to date, but with critical deadlines approaching over the next 18 months, UK market participants can expect SONIA-based transactions to become more prevalent.

This update addresses the current state of GBP LIBOR and SONIA markets, exploring both the performance of the rates as well as the borrowing and hedging markets that surround them.

Highlights

  • The spot spread between SONIA and LIBOR is currently two basis points but has averaged 18 basis points over the past ten years and 14 basis points over the past five years. There have been several instances where the two diverged, most recently in the first quarter this year based upon market sentiment around bank creditworthiness and the BoE response to COVID-19.
  • The five-year historical median spread between LIBOR and SONIA, identified as the preferred spread adjustment methodology in the transition from LIBOR to SONIA, has held steady between 12 and 13 bps in recent years.
  • SONIA trading volumes saw a considerable pickup in Q1 2020, but they have now reverted to historical averages, consistent with Chatham’s observation that the majority of our clients continue to borrow (and therefore hedge) based on LIBOR.
  • Some expect derivatives activity in the 1–5 year tenor (particularly 3–5 years) to increase in Q2 2021, when lenders will no longer be permitted to write LIBOR-indexed facilities.

Performance of GBP LIBOR and SONIA

The spread between GBP LIBOR and SONIA reflecting spot difference

The spread between LIBOR and SONIA reflects the spot difference between the rates, as opposed to the historical five-year median spread adjustment on that date. Source: Chatham models

  • Both 3-month GBP LIBOR and SONIA compounded daily in arrears, the backward-looking calculation methodology recommended by the Working Group on Sterling Risk-Free Reference Rates, initiated by the Bank of England (BoE) (unless otherwise indicated, all subsequent references to SONIA will mean SONIA compounded in arrears), are driven by the BoE policy rate and tend to be highly correlated and directionally aligned.
  • The spot spread between SONIA and LIBOR is currently 2 basis points but has averaged 18 basis points over the past ten years and 14 basis points over the past five years. There have been several instances where the two diverged, most recently in the first quarter this year based upon market sentiment around bank creditworthiness and the BoE response to COVID-19. For more information about the other factors that can cause LIBOR and SONIA to diverge, read our FAQ: IBOR transition to risk-free rates in Europe.

GBP LIBOR to SONIA spread adjustment

Median spread between LIBOR and SONIA measured on a five-year lookback

Median spread between LIBOR and SONIA measured on a five-year lookback. Source: Chatham models

  • Transitioning a GBP LIBOR-based loan or hedge to a SONIA-based instrument necessitates adjusting the loan/hedge spread to keep the parties economically indifferent.
  • The Consultation on credit adjustment spread methodologies for fallbacks in cash products referencing GBP LIBOR, written by The Working Group on Sterling Risk-Free Reference Rates, recommended a spread adjustment calculated as the median difference between GBP LIBOR and SONIA over a five-year lookback period prior to the fallback date.
  • The five-year historical median spread has held steady between 12 and 13 bps over the past five years.

Hedging activity in GBP LIBOR and SONIA markets

Transaction count and volume for new interest rate derivatives indexed to GBP LIBOR or SONIA. Source: ISDA SwapsInfo

  • As of today, LIBOR continues to be the primary index hedged in the market while SONIA has not gained the critical mass anticipated in 2019.
  • SONIA trading volumes saw a considerable pickup in Q1 2020, but they have reverted to historical averages, consistent with Chatham’s observation that the majority of our clients continue to borrow (and therefore hedge) based on LIBOR.
  • Some expect that the Q1 2021 deadline for new LIBOR financings will have a noticeable impact on the mix of LIBOR and SONIA hedging volumes, but with LIBOR carrying on until at least the end of 2021, the transition could continue to unfold gradually.
Transaction count for new SONIA-indexed derivatives

Transaction count for new SONIA-indexed derivatives. Source: ISDA SwapsInfo

  • Most of our clients’ SONIA-based transactions mature in the one to five-year range, despite this being the most thinly traded tenor by transaction count.
  • Some expect activity in the 1–5 year range (particularly 3–5 years) to increase in Q2 2021, when lenders will be prohibited from writing LIBOR-indexed facilities.
Transaction volume represents notional hedged (GBP billions) for new SONIA-indexed derivatives

Transaction volume represents notional hedged (GBP billions) for new SONIA-indexed derivatives. Source: ISDA SwapsInfo

  • Despite the relatively even mix in transaction count by tenor, transaction volumes are dominated by trades up to one year in tenor.
  • The spike in Q1 may in part be driven by the FCA’s press release in January 2020 encouraging market participants to begin the switch from LIBOR to SONIA-indexed derivatives.

With less than 18 months until LIBOR is no longer supported by the UK Financial Conduct Authority, market participants can expect the SONIA market to further develop. Many expect this will be most noticeable in both transaction count and volume for trades with a tenor of 3–5 years following the Q2 2021 hard stop on lenders issuing new LIBOR indexed facilities. Continuing low spreads between LIBOR and SONIA may also begin to compress the five-year median spread currently slated as the preferred spread adjustment mechanism for existing LIBOR-indexed financings that transition to SONIA. For more information about the transition from LIBOR and SONIA, read our FAQ: GBP LIBOR transition to SONIA.


Speak to a Chatham expert

Please reach out to the Chatham team if you have questions around the GBP LIBOR transition or how the use of SONIA in your loans and derivatives could impact your interest rate exposure.

About the authors


Disclaimers

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 chathamfinancial.com/legal-notices.

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.

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