A repurchase agreement, often called a “repo,” is a short-term agreement where one party sells an asset to another with a promise to repurchase it at a later date at a slightly higher price. Think of it like a secured loan where the asset being sold acts as collateral.
Here’s how it works in detail:
- Sale and Repurchase Agreement: Party A (the borrower, often a bank or corporation) sells securities, typically government bonds, to Party B (the lender, often a money market fund or another institution) at an agreed-upon price.
- Agreed-Upon Repurchase: The agreement includes a specific date in the future and a slightly higher repurchase price. This difference between the sale price and the repurchase price represents the interest earned by the lender.
- Reversal: On the agreed-upon date, Party A repurchases the securities from Party B at the pre-determined, higher price. Party A gets their securities back, and Party B receives their original investment plus interest.
Key aspects of repos include:
- Term: Repos are typically very short-term, often overnight (called overnight repos). However, they can also have longer terms, ranging from a few days to several months.
- Securities: Government bonds are the most common type of security used in repos, but other assets like corporate bonds and mortgage-backed securities can also be used. The quality of the underlying security influences the repo rate (the interest rate).
- Repo Rate: This is the interest rate paid by the borrower to the lender in the repo transaction. It’s determined by market forces, the creditworthiness of the borrower, the type and quality of the collateral, and the term of the agreement. Generally, safer collateral and shorter terms lead to lower repo rates.
- Reverse Repo: This is the same transaction viewed from the lender’s perspective. Party B is engaging in a “reverse repo” by buying the securities and agreeing to sell them back later.
Why are repos important?
- Liquidity Management: Repos are a vital tool for banks and other financial institutions to manage their short-term liquidity needs. They can borrow cash quickly by temporarily selling their securities.
- Funding: They provide a significant source of funding for broker-dealers and other market participants.
- Monetary Policy: Central banks, like the Federal Reserve, use repos (and reverse repos) to implement monetary policy. For example, the Fed can inject liquidity into the market by buying securities with an agreement to resell them later (repo). Conversely, they can drain liquidity by selling securities with an agreement to repurchase them later (reverse repo). These operations influence the money supply and short-term interest rates.
- Low Risk: Because repos are secured by collateral, they are generally considered to be relatively low-risk transactions. However, risks do exist, such as counterparty risk (the risk that the borrower will default) and collateral risk (the risk that the value of the collateral will decline).
In summary, a repo is a secured short-term loan with securities serving as collateral. It is a cornerstone of the financial system, playing a crucial role in liquidity management, funding, and monetary policy.