Repurchase Agreements for Large Treasury Balances

A repurchase agreement, or repo, is effectively a short-term collateralized loan: you buy securities, typically Treasuries, from a counterparty with an agreement that they'll repurchase them back from you at a set price on a set date, which is the mechanism that generates your return. Economically it functions like a secured, very short-term loan you're making, backed by the collateral, rather than a purchase you intend to hold.

A tri-party repo adds a third-party custodian bank that holds the collateral and manages settlement between the two parties, which reduces the operational and counterparty risk compared to a bilateral arrangement where you'd be relying entirely on the other side's own custody.

Without the tri-party custodian, your team would need to independently verify the collateral is actually held, correctly valued, and not simultaneously pledged elsewhere, which is a level of operational diligence most finance teams outside of dedicated treasury functions aren't set up to do continuously. The custodian handles that verification as part of the structure, which is exactly why tri-party repo is the version most operating companies use rather than a bilateral arrangement.

Ask specifically whether a proposed repo is tri-party or bilateral before agreeing to terms; the two carry meaningfully different operational risk even when the headline rate looks similar.

Confirm the collateral type (Treasuries carry the least risk, agency securities and other instruments carry more), the haircut applied (how much the collateral's value exceeds the cash you're lending, which protects you if the collateral's value drops), and the termination and rollover mechanics if you want the arrangement to continue past its initial term. A master repurchase agreement typically governs the ongoing relationship, with individual transactions executed under its terms.

Have your lawyer or an experienced treasury advisor review the master agreement the first time you use a new counterparty, even if the individual transaction terms look standard, since the master agreement is what governs every transaction that follows it.

Confirm these points in the documentation before you sign:

• The collateral type, since Treasuries carry the least risk and agency securities or other instruments carry more.
• The haircut, meaning how much the collateral's value exceeds the cash you're lending, which protects you if its value drops.
• The termination and rollover mechanics, if you want the arrangement to continue past its initial term.
• That the master repurchase agreement is signed, filed and easy to retrieve for any future audit or diligence request.

A repo typically offers a rate advantage over a plain bank sweep or a standard money market fund for a large balance, since you're directly capturing the collateralized lending rate rather than paying a fund's operating costs on top of it. It's most attractive for the strategic reserve tier of a large balance, cash you're confident won't be needed on very short notice, since overnight repo settles quickly but a term repo locks the arrangement for its stated duration.

A balance large enough to justify the operational overhead of a repo relationship, and confident enough in its own scale that a large tranche won't be needed on short notice, is generally the profile this makes the most sense for.

The master repurchase agreement and any counterparty due diligence documentation should be signed, filed, and easy to retrieve for both your own recordkeeping and any future audit or diligence request. A tool like Foxit eSign handles the signature step cleanly, and Process Street is a reasonable place to document the recurring settlement checklist so the process doesn't rely entirely on one person's memory of how it works.

Revisit the counterparty relationship and terms at least annually, the same way you'd revisit any other significant banking or treasury relationship.

Ask how the counterparty's own credit standing is monitored and how quickly the tri-party custodian would move to liquidate collateral if the counterparty defaulted. The custodian's role is specifically to protect you in exactly that scenario, and a counterparty or custodian who can't answer this clearly and specifically is a reason to look elsewhere before committing a large tranche.