FRA-OIS Spread: How It Works, Crisis Behavior, and Demise

The FRA-OIS spread is the gap between the rate on a forward rate agreement tied to LIBOR and the overnight indexed swap rate for the same period, and for years it was one of the cleanest real-time readings of stress in the banking system. A narrow spread meant banks were comfortable lending to each other unsecured; a wide one meant they were charging a fat premium for the privilege, or refusing outright. The trade itself no longer exists in its original form because U.S. dollar LIBOR was retired in June 2023, but the concept still shapes how regulators and treasury desks think about funding stress.

What the Spread Actually Measures

The two legs price the same window in very different ways. LIBOR, the London Interbank Offered Rate, reflected the cost of an unsecured term loan between banks, most commonly at three months. The overnight indexed swap rate reflects the market’s expectation for the compounded overnight policy rate — in the United States, the federal funds rate — over that same window. Because an OIS involves no exchange of principal and resets daily, it carries very little counterparty or liquidity risk and functions as a near-risk-free benchmark.¹

Subtract one from the other and what remains is the credit and liquidity premium banks demand to tie up funds over a term rather than lending overnight or on a secured basis. Traded as a package — a U.S. dollar forward rate agreement paired with an overnight index swap — the position let a desk “pay” the spread if it expected funding stress to increase, or “receive” the spread on a bet that conditions would improve. U.S. bank treasury desks used it as a hedge against the funding cost risk sitting on their balance sheets, because it directly priced the markup over the risk-free rate attributable to bank credit risk.²

In calm markets, the three-month LIBOR-OIS spread historically sat between about 7 and 20 basis points, with roughly 10 basis points treated as the normal baseline.³⁴ The one-month spread was tighter still, oscillating around 6 basis points before the summer of 2007.⁵

What Pushes the Spread Wider

Two forces dominate: counterparty credit risk and liquidity risk. Research consistently finds that liquidity accounts for the larger share of the spread on average, while credit risk tends to take over during acute crises.⁶ A Federal Reserve study covering 2007–2013 estimated that credit risk, proxied by bank CDS spreads, explained roughly one-fifth of the total LIBOR-OIS spread on average, with liquidity premia making up the rest.⁷

Structural and regulatory factors can also widen the spread even when banks are fundamentally sound. A surge in Treasury bill issuance — for example, after the February 2018 debt-ceiling suspension — drains cash from money markets and pushes short-term rates up. The 2017 U.S. tax overhaul reduced corporate demand for short-term debt as companies repatriated foreign profits, and its Base Erosion and Anti-abuse Tax forced non-U.S. banks to source dollar funding domestically through debt issuance. The 2016 SEC money market reforms, which required institutional prime funds to adopt floating net asset values, cut demand for commercial paper and CDs, again pushing LIBOR up relative to OIS.⁸ And offshore dollar funding pressure feeds directly into the spread: non-U.S. banks held roughly $5.5 to $5.7 trillion in dollar deposits in late 2015 and early 2016, so any difficulty rolling that funding shows up quickly in LIBOR-based markets.9

Quarter-End and Year-End Spikes

The spread also had a habit of jumping at quarter-end and, more sharply, at year-end. The mechanism is balance-sheet “window dressing”: banks and dealers deliberately shrink reported assets around regulatory snapshot dates to improve leverage ratios and other capital metrics.¹⁰ During the 2007–2008 crisis, the BIS noted that LIBOR-OIS spreads spiked at maturities crossing year-end boundaries, pointing to intense liquidity needs rather than pure solvency fears.¹ The Supplementary Leverage Ratio is often cited as a key driver, particularly for European banks that calculate it at quarter-end rather than as a quarterly average, though the Federal Reserve has observed similar patterns in the federal funds and repo markets before the SLR existed, suggesting a broader set of accounting incentives.

How the Spread Behaved in Past Crises

2007–2008

The spread’s first major test came in August 2007, when BNP Paribas froze three investment funds and liquidity in asset-backed securities markets evaporated. The three-month spread surpassed 90 basis points by mid-September 2007 and breached 100 basis points that December.³ After the JPMorgan-Bear Stearns rescue in March 2008, it eased back to around 70 basis points through the spring and summer.

Then came September 2008. The collapse of Lehman Brothers sent the spread surging past 350 basis points, with a peak of roughly 360 basis points in mid-October 2008.³¹¹ The related TED spread (LIBOR minus the Treasury bill rate) went wider still, exceeding 450 basis points, but analysts generally treated LIBOR-OIS as the cleaner gauge because OIS was less distorted by flight-to-quality flows into Treasuries. The spread fell below 100 basis points by early January 2009, then revisited roughly 30 basis points in June 2010 and 50 basis points at the end of 2011 during successive waves of European sovereign debt anxiety.⁴

2020

In early March 2020, the FRA-OIS spread widened to its highest level in more than eight years as recession fears tied to the coronavirus pandemic took hold.¹² The move reflected concerns that corporate borrowers would struggle and that banks exposed to those losses would face higher costs lending to each other. Across the 2007–2009 crisis the three-month spread had averaged about 100 basis points above pre-crisis levels; the COVID episode saw a similar dynamic compressed into a much shorter window before Federal Reserve intervention brought spreads back down.¹³

How Central Banks Fought Blowouts

Because the spread was a real-time barometer of banking-sector stress, its movements repeatedly triggered aggressive central bank action. The Federal Reserve’s primary tool for addressing offshore dollar funding pressures — and the LIBOR spikes those pressures caused — has been its network of central bank swap lines. On October 13, 2008, the Fed removed limits on swap lending and switched to fixed-rate pricing at OIS plus 100 basis points; within days, LIBOR-OIS spreads narrowed by roughly 200 basis points.¹⁴

The same playbook returned in 2020. On March 15, the Fed coordinated with five other central banks to cut the price on standing dollar swap lines by 25 basis points to OIS plus 25 basis points, added 84-day operations, and shifted to daily auctions.¹⁵ Four days later, the Fed extended temporary swap lines to nine additional central banks, and usage peaked at $449 billion by late May 2020. At the end of March 2020, the Fed also created the Foreign and International Monetary Authorities (FIMA) Repo Facility, giving foreign central banks a way to raise dollar liquidity by temporarily exchanging their Treasury holdings for cash rather than dumping them into an already distressed Treasury market.¹⁶

Why the Trade No Longer Exists

The end of U.S. dollar LIBOR in June 2023 eliminated the rate that formed one leg of the FRA-OIS trade. The market had been described as a useful, reliable and liquid hedging tool, and its disappearance left what Risk.net called a “hole” in bank treasury risk management, exposing banks to a “greater downside” to widening credit spreads.²

The Secured Overnight Financing Rate (SOFR) became the dominant U.S. dollar benchmark, and CME describes its futures as very liquid and the primary market for short-term interest rate risk transfer.¹⁷ But SOFR is a secured, risk-free rate. It does not embed the bank credit premium that LIBOR carried and that the FRA-OIS spread isolated. The new plumbing prices interest rate risk efficiently; it no longer tells you how nervous banks are about lending to each other.

Several credit-sensitive alternatives have been proposed to fill that gap. Bloomberg’s Short-Term Bank Yield Index (BSBY) was announced for cessation in late 2023. Ameribor, created by the American Financial Exchange, drew some smaller banks but struggled after regulators backed SOFR, and it was acquired by Intercontinental Exchange in 2025. The Across-the-Curve Credit Spread Index (AXI), developed by the SOFR Academy and launched in 2022, layers a credit spread on top of SOFR and has seen some internal treasury use and derivatives pricing with hedge fund clients, though commercial lending uptake remains limited.¹⁸ A deeper problem sits underneath all of these efforts: credit-sensitive rates depend on liquidity in short-term instruments like commercial paper and CDs, and that liquidity tends to vanish precisely when the rate matters most. Academic research has noted that liquidity in these instruments was “almost non-existent” during the COVID-19 crisis, raising doubts that any successor can avoid the vulnerability that plagued LIBOR.¹⁹

A Caveat on the Historical Numbers

Any historical reading of the FRA-OIS spread carries an asterisk. Federal Reserve research found that LIBOR-panel banks routinely misreported their borrowing costs, understating them by as much as 35 basis points at the peak of the 2007–2009 crisis to avoid appearing distressed.⁷ Banks also tended to submit rates close to the pack to avoid standing out, which created an artificial correlation between LIBOR and aggregate risk that did not exist at the individual bank level. The practical implication is that the spread, as observed in real time during the crisis, likely understated the true degree of interbank funding stress. The Federal Reserve Bank of St. Louis has characterized the measure as a tool for detecting “illiquidity waves” that impair money markets — a useful description of what the spread caught, and a reminder of what it could miss.²⁰

1
BIS. Interbank Rate Fixings During the Recent Turmoil
2
Risk.net. FRA-OIS Demise Leaves Hole in Bank Treasury Risk Management
3
Federal Reserve. Three-Month Libor Over OIS Rate
4
University of Toronto. LIBOR vs. OIS: The Derivatives Discounting Dilemma
5
HKMA. Measuring Systemic Funding Liquidity Risk
6
Norges Bank. Interbank Risk Premium and Libor-OIS Spread
7
Federal Reserve. Decomposing the Libor-OIS Spread
8
Goldman Sachs Asset Management. LIBOR-OIS: Frequently Asked Questionsa>
9
BIS. Covered Interest Parity Lost: Understanding the Cross-Currency Basis
10
Federal Reserve. What Happens on Quarter-Ends in the Repo Market
11
Yale School of Management. Libor-OIS Spread and Selected Events, 2007–2009
12
Bloomberg. Why It Matters That the FRA-OIS Spread Is Widening
13
Federal Reserve. How Correlated Is LIBOR With Bank Funding Costs
14
Taylor & Francis. The Federal Reserve as International Lender of Last Resort
15
Federal Reserve. Coordinated Central Bank Action to Enhance Dollar Liquidity
16
Federal Reserve Bank of New York. The Federal Reserve’s International Dollar Liquidity Facilities
17
CME Group. Price and Hedging USD SOFR Interest Swaps With SOFR Futures
18
ABA Banking Journal. Credit-Sensitive LIBOR Replacement Rates Still Seek Traction
19
Wiley Online Library. Credit-Sensitive Rates and LIBOR Replacement
20
Federal Reserve Bank of St. Louis. The LIBOR-OIS Spread as a Summary Indicator