Exploring The Ramifications Of LIBOR’s Phase-Out

From Invesco: In the past few years, the London interbank offered rate (LIBOR) has faced well-publicized challenges. LIBOR was intended to reflect the cost at which large banks could borrow from each other and for decades was a benchmark for numerous private-sector rates.

However, the credibility of LIBOR was eroded after evidence of manipulation, leading the UK Financial Conduct Authority to call for its eventual phasing out. US financial authorities, recognizing the need for a replacement benchmark with greater transparency, recently launched the secured overnight financing rate (SOFR). We believe SOFR is an improvement over LIBOR because it is based on interest rates charged in actual lending transactions. In contrast, LIBOR is based on submissions of interbank lending rates by major banks that don’t have to be tied to actual transactions, making it more susceptible to manipulation.

The search for a LIBOR replacement

Given the importance of LIBOR as a financial market reference rate, US financial authorities sought to identify a new, more transparent benchmark. The Board of Governors of the Federal Reserve (Fed) and the Federal Reserve Bank of New York convened the Alternative Reference Rates Committee (ARRC) in 2014 to find a replacement.

The committee considered several alternatives, including repurchase agreement (repo) rates. A repo agreement is an agreement to sell securities one day and buy them back the following day. The following three repo rates were considered:

  • The Tri-party General Collateral Rate (TGCR). Based on trade-level, tri-party data collected from the Bank of New York Mellon.
  • The Broad General Collateral Rate (BGCR). Calculated using the TGCR and the General Collateral Financing (GCF) repo rate as reported by the Depository Trust & Clearing Corporation.
  • The Secured Overnight Financing Rate (SOFR). Based on BGCR and bilateral repo rates cleared by the Fixed Income Clearing Corporation (FICC).

After three years of careful study, the ARRC identified SOFR — the broadest of the three repo rates — as its preferred alternative to LIBOR, and established 2021 as the target date for LIBOR’s phase-out. On April 3 of this year, the Federal Reserve Bank of New York began daily publication of SOFR.

What is SOFR?

SOFR is a secured, overnight funding rate based on a broad range of repo transactions collateralized by Treasury securities. It is considered one of the most robust indexes available since it is based on a high volume (approximately $800 billion) of daily overnight transactions.[1] Its calculation is derived from the TGCR, the GCF repo rate and the FICC-cleared bilateral repo rate. SOFR (along with the TGCR and BGCR) provides market participants with greater transparency into an important segment of the US financial system – the Treasury repo market.

Dynamics impacting the volatility of SOFR

We expect some volatility in the SOFR benchmark due to factors that typically cause volatility in Treasury repo markets. These include changes in Treasury bill supply, dealer balance sheet management and excess cash flows of government-sponsored enterprises into and out of funding markets, to name a few.

How has the market responded to SOFR?

In late July, the Federal National Mortgage Association (FNMA) became the first entity to issue a floating rate security benchmarked to SOFR — a meaningful step in the transition away from LIBOR. The market response appeared positive, as the deal was well oversubscribed. On the heels of the FNMA transaction, the World Bank became the second notable issuer to generate a funding deal pegged to SOFR. Several private sector firms have recently followed suit. The Chicago Mercantile Exchange also launched SOFR futures contracts in May 2018.

In an important acknowledgement, Standard & Poor’s called the benchmark an “anchor money market reference rate” in its principal stability fund ratings methodology, which makes the SOFR index eligible for purchase by money market funds rated by the agency. And with the implementation of the SOFR futures market, investors now have a framework for forward-looking expectations and values of the benchmark.

Why is the transition important to investors?

LIBOR is the reference rate currently driving funding costs on a huge volume and variety of financial products. The transition to SOFR therefore represents a major change for global financial markets.

The transition from LIBOR to SOFR will be especially relevant for investors in floating rate debt and for issuers seeking variable rate funding. Because coupons on floating rate notes have historically been set as a percentage amount, or “spread,” over LIBOR, a reliable and credible LIBOR alternative is essential. One question yet to be resolved is how floating rate notes that mature after 2021 will be impacted. Because some of these notes are currently being issued with maturities that extend beyond this date, Invesco Fixed Income hopes to see more floating rate note issuance based on SOFR going forward.

Another important consideration is pricing. For investors to receive the same floating rate yield as LIBOR-based notes, they must demand a higher spread over SOFR to compensate for SOFR’s generally lower yields. This differential is due to some important differences in what these rates represent — SOFR is a secured overnight rate, while 3-month LIBOR is longer-term and unsecured.

Source: Bloomberg, L.P. data from April 2, 2018, to Sept. 6, 2018.

Looking ahead

Although the market is still a few years away from completing the transition from LIBOR to SOFR, we believe the success of recent deals suggests that SOFR will be a welcome replacement. Over the course of the next year, we anticipate increased adoption and issuance of securities based on SOFR, which would help provide depth to the market. As we approach 2021, investors may be wary of LIBOR-indexed securities as questions and concerns arise over whether LIBOR contributors will continue their voluntary submissions, which could lead to volatility of the LIBOR index.

Potential key benefits and challenges related to SOFR

Potential benefits

  • The SOFR index provides a fallback rate as LIBOR is phased out.
  • SOFR is a robust benchmark supported by substantial transactional data for the issuance of floating rate securities.
  • Increases in repo rates (due to increased Treasury supply, for example) should be reflected in the SOFR index.
  • SOFR should automatically reset when the Fed raises rates, providing a quick update to securities pegged to the reference rate.


  • SOFR is expected to experience some volatility, which is typically seen in repo markets.
  • Because SOFR is tied to overnight repo rates and Treasury collateral, falling repo rates (due to a credit event that causes a flight to quality, for example) would likely reduce yields on floating rate securities pegged to the index.
  • Because SOFR is a relatively new index, markets will likely require an adjustment period to gauge its liquidity, determine its pricing and understand its potential performance versus other established indices, such as the overnight bank funding rate, interest on excess reserves and the federal funds rate.

Source: Bloomberg, L.P., data from April 2, 2018, to Sept. 6, 2018. The federal funds rate is the interest rate at which depository institutions lend reserve balances to other depository institutions overnight on an uncollateralized basis.


Because the SOFR index is based on a high volume of transactional data in the repo market, we believe it provides a robust replacement for LIBOR. The recent issuance and acceptance of funding transactions benchmarked to SOFR represent the beginning of the monumental transition away from LIBOR, which has historically served as the reference rate for most floating rate securities.

Going forward, Invesco Fixed Income expects greater adoption of SOFR by a broad range of issuers as entities collect data points tracking its volatility and liquidity, determine its performance versus other indices and establish the internal systems and procedures necessary to issue and price securities to the SOFR benchmark.

1 Source: Bloomberg, L.P., as of Sept. 13, 2018.

Important information

Blog header image: Kiev Victor/Shutterstock.com

LIBOR (London Interbank Offered Rate) is a benchmark rate that some of the world’s leading banks charge each other for short-term loans. US LIBOR represents LIBOR denominated in US dollars.

The repo (or repurchase) rate is the rate at which the central bank of a country lends money to commercial banks in the event of any shortfall of funds. The repo rate can be used by monetary authorities to control inflation.

The Invesco DB US Dollar Bullish (UUP) was unchanged in premarket trading Thursday. Year-to-date, UUP has gained 4.41%, versus a 9.57% rise in the benchmark S&P 500 index during the same period.

UUP currently has an ETF Daily News SMART Grade of A (Strong Buy), and is ranked #1 of 17 ETFs in the Currency ETFs category.

This article is brought to you courtesy of Invesco.