FRA-OIS Spread

What Is the FRA-OIS Spread?

The FRA-OIS spread is the difference between the rate on a Forward Rate Agreement (FRA) and the rate on an Overnight Indexed Swap (OIS) of equivalent tenor. It captures the credit and liquidity premium for unsecured bank borrowing over the risk-free overnight rate.

FRAs reference unsecured term lending (banks lending to each other for a fixed period); OIS references the compounded overnight risk-free rate (SOFR in the modern US framework). The spread between them is the compensation lenders demand for term and credit risk in the banking system.

Why It Matters for Markets

FRA-OIS is one of the most reliable single indicators of bank funding stress. When banks pull back from lending to each other, FRA rates rise faster than OIS rates, and the spread widens. Widening signals stress; tightening signals normalization.

The metric is widely watched by:

• Bank treasury desks: managing their funding costs and balance sheets.
• Macro traders: as a leading indicator of broader financial stress.
• Credit investors: as a benchmark for unsecured bank credit spreads.
• Central bankers: as a real-time signal of money-market plumbing health.

How to Read the Spread

Normal range: FRA-OIS typically runs 5-15 basis points. This compensates for modest credit risk in healthy banking systems.

Moderate stress: 30-50 bp signals tightening funding conditions. Banks are demanding more compensation; small banks may be having trouble accessing the interbank market.

Acute stress: above 50 bp signals systemic stress. Above 100 bp indicates that the interbank market is dysfunctional.

Crisis level: above 200 bp historically requires central bank intervention. The 2008 peak above 400 bp triggered the Fed's emergency liquidity facilities.

Historical Context

Pre-2008, the LIBOR-OIS spread (the predecessor metric) averaged approximately 10 bp. The 2008 GFC drove the spread to over 400 bp at peak (October 2008), signaling complete interbank market dysfunction. The Fed responded with emergency liquidity facilities (TAF, AMLF, PDCF, TSLF) that restored function over months.

Post-2008 the metric averaged 10-20 bp in normal markets. The 2020 COVID stress drove it briefly to 80 bp before Fed liquidity actions restored normalization. The March 2023 SVB / Credit Suisse episode produced a 30-40 bp spike that resolved within weeks as deposit insurance backstops and emergency Fed lending stabilized the system.

Through 2024-2025, FRA-OIS has run in the 10-25 bp range — broadly normal, reflecting the post-SVB stabilization. A sustained move above 30 bp would be the first signal of renewed bank funding stress; a move above 50 bp would warrant active monitoring.