The Standing Repo Facility

After the September 2019 repo spike, where overnight rates briefly touched 10% while the Fed's target range sat at 2.00–2.25%, it became clear the market needed a permanent release valve rather than a one-off intervention each time reserves ran short. The Fed built one in 2021: the Standing Repo Facility (SRF), a permanent, always-available counterparty that will lend cash against high-quality collateral whenever the private market's rate gets too expensive.

How it caps the rate

The Fed announces the SRF's minimum bid rate in advance — set with reference to the top of the fed funds target range. On any day, if private repo rates threaten to rise above that level (because reserves are scarce, quarter-end pressure hits, or a shock disrupts financing), any eligible counterparty can instead borrow at the Fed's fixed rate. This gives dealers and banks a known maximum cost of financing collateral, so private lenders cannot extract a rate above it — anyone charging more would simply lose the trade to the Fed's standing offer.

Worked example

The fed funds target range is 5.25–5.50%, and the Fed sets the SRF minimum bid rate at 5.50%. On a day when quarter-end balance-sheet constraints would otherwise push private GC repo to 6.00%, dealers instead borrow from the SRF at 5.50%, since it's cheaper. A dealer needing $2 billion overnight saves $2{,}000{,}000{,}000 \times (0.0600 - 0.0550)/360 \approx 27{,}778$, i.e. about $27,778 for that one night by using the facility instead of paying the private-market spike rate.

What this means in practice

The SRF doesn't try to guess when stress will hit — it's a passive, always-on backstop, and its usage is a clean, publicly reported gauge of how tight repo funding conditions are on any given day: heavy SRF usage signals reserves are scarce relative to demand, which is itself useful information for the Fed in deciding when to slow or stop balance-sheet runoff.