· Reference Entry

SOFR

/ˌes əʊ ɛf ˈɑː/
/ˌes oʊ ɛf ˈɑːr/
noun ES-oh-ef-AH

A benchmark interest rate that reflects the cost of borrowing cash overnight using U.S. Treasury securities as collateral.

Published 2026-09-22 Category: Reviewed by Alex Grant, Editor-in-Chief
On this page
Advertisement
Advertisementdisplay · responsive
01

Definitions #

A benchmark interest rate that reflects the cost of borrowing cash overnight using U.S. Treasury securities as collateral.

Technical The Secured Overnight Financing Rate, a volume-weighted median of transaction-level repo data, published by the Federal Reserve Bank of New York since April 2018 as a replacement for LIBOR.

Example The swap contract was repriced based on SOFR, which replaced LIBOR as the fallback benchmark.

02

Etymology #

Acronym for Secured Overnight Financing Rate; coined by the U.S. Federal Reserve to denote a secured (collateralized) overnight funding benchmark.

03

Collocations #

  • SOFR-based loan 贷款按SOFR计息
  • term SOFR 期限SOFR(如1个月、3个月)
  • SOFR spread adjustment SOFR利差调整(用于从LIBOR过渡)
  • SOFR futures SOFR期货(芝加哥商业交易所产品)
04

Real Business Examples #

  1. The syndicated credit facility was amended to reference SOFR plus a credit adjustment spread.
  2. Hedge documentation now specifies SOFR as the fallback rate for derivative transactions.
Advertisement
Advertisementin-article · fluid
05

Register & Variants #

  • Register: formal
  • BrE/AmE: Global, used in U.S. dollar markets worldwide
06

Synonyms & Antonyms #

  • Synonyms: Secured Overnight Financing Rate
07

Common Errors #

  • Treating SOFR as a term rate like 3-month LIBOR before term SOFR was published SOFR is an overnight rate; use term SOFR or compounding for longer tenors.
  • Assuming SOFR includes bank credit risk SOFR is secured by Treasuries; it does not include bank credit risk, unlike LIBOR.
08

Confusable Terms #

EFFR vs SOFR
EFFR is the unsecured federal funds rate; SOFR is secured and based on repo transactions.
09

Frequently Asked Questions

Why did SOFR replace LIBOR??

LIBOR was unreliable after the 2008 scandal; SOFR is based on real transactions and is more robust.

Is SOFR always higher than LIBOR??

No, SOFR can be lower or higher; the spread adjustment is applied to compensate for the difference.

Advertisement
Advertisementmultiplex · grid

Published: 2026-09-22 Category: