LIBOR Transition to SOFR in Credit Agreements
FICC acts as a central counterparty for GCF and bilateral repos. Removed from these calculations are transactions
the New York Fed refers to as "specials," or specific-issue collateral. These specials trade at cash-lending rates
(i.e., rates lower than those for general collateral repos); cash providers accept this lower yield, so they can obtain a
particular security.
The New York Fed publishes the result of this calculation, SOFR, on its website at about 8 a.m. New York time
each business day. That can be found here. In addition, Term SOFR, the forward-looking interest rates published
by CME Group for one, three, six, and twelve month tenors, is available each day. Financial institutions typically
access Term SOFR through a license with CME Group.
Differences between LIBOR and SOFR
SOFR differs from LIBOR in that there is a far higher volume of SOFR-based trading and in the underlying nature of
the rate itself. Higher volume generally makes SOFR safer from manipulation than LIBOR. For example, just after
the New York Fed began quoting the SOFR rate, $754 billion in daily trading volume made up SOFR, as opposed
to $500 million in three-month LIBOR, according to the ARRC. Thus, a very large number of contracts based on
LIBOR (see below) are derived from a relatively small amount of underlying trades—making LIBOR susceptible to
manipulation. The relative weakness of LIBOR was exacerbated by the financial crisis and subsequent LIBOR
scandal, when banks drastically limited (in fact, nearly eliminated) reporting LIBOR. SOFR is based on data from far
more trades than is LIBOR, ideally making it a more accurate measure of the cost of credit.
LIBOR and SOFR themselves are based on different metrics as well. The most significant difference between
LIBOR and SOFR is that LIBOR is an unsecured rate and represents banks' estimates as to their cost of funds (see
Interest Rate Provisions in Credit Agreements). SOFR meanwhile is a secured, risk-free rate. Thus, LIBOR
arguably reflects banks' costs of funding more accurately than SOFR. On the other hand, the calculation of LIBOR
was opaque, based on polling of certain banks. The calculation of SOFR is more transparent, based on market
data. In addition, because of the size of the SOFR market and the different components that go into its calculation
(see above), the ARRC concluded that SOFR does reflect the economic cost of lending and borrowing relevant to a
wide array of market participants.
In addition, LIBOR quotes are available for deposits with several different maturities (interest periods), from
overnight to one year. At its launch in April 2018, SOFR lacked a term reference rate, being limited only to an
overnight rate (the ARRC was unable to find a term rate like LIBOR that otherwise met its criteria for a replacement
rate). Subsequently, the ARRC published an indicative three-month SOFR rate. Otherwise, issuers selling bonds
tied to SOFR were making do with the overnight rate. That is, a term interest rate was derived from extrapolating
from the daily SOFR rate (i.e., an average daily rate). The disadvantage of such extrapolation is that the parties did
not know the final rate at the start of the interest period, as is the case with LIBOR. However, SOFR has began
trading on futures markets, and this allowed for the calculation of true term rates. On July 29, 2021, the ARRC
recommended the CME Group's forward-looking Term SOFR, which has tenors similar to LIBOR. This is one of the
final steps in the ARRC's "paced transition plan."
The differences between LIBOR and SOFR are most essentially represented in the underlying rates themselves.
For that reason, you cannot simply amend a credit agreement to replace LIBOR with SOFR. For example, on
January 3, 2018, the overnight LIBOR rate was 2.39188% and SOFR was 2.7%. However, at most other points in
the cycle, SOFR has been lower than LIBOR, and the overnight rate for LIBOR is not the most representative of
LIBOR measurements. In any event, some credit adjustments to the spread must be made to account for the
difference rates (see "Credit Spread Adjustment," above).
Looking Ahead
You should continue to monitor developments as SOFR is now the primary replacement for LIBOR. Loan
agreements are now switched to or originated using SOFR or another replacement rate for LIBOR, and derivatives
will make the switch upon the permanent discontinuance of LIBOR. The ARRC has strong advice on the need to