# Gara Afonso and co-authors explain repo markets in Liberty Street Economics [Canonical reading](https://escapemeridian.com/readings/gara-afonso-and-co-authors-explain-repo-markets-in-liberty-907004ed) Published September 28, 2026, Gara Afonso, Jun-Davinci Choi, Gonzalo Cisternas, and Will Riordan introduce private repo markets and explain who borrows and lends in them. A repo is a transaction in which one party sells a security for cash and commits to repurchase it later. Borrowers use repos to obtain cash; lenders may seek an investment or a particular security. The authors describe dealers as intermediaries, hedge funds as the largest private-market cash borrowers, and money market funds as the main cash lenders. Hedge funds also lend to manage cash and liquidity and for collateral transformation. Their account presents repo markets as connecting cash investors, institutions seeking financing, and participants seeking specific securities. The authors conclude that repos provide a usually short-term, collateralized venue for borrowing and lending. They say later posts will examine market structure and the role of repos in monetary policy implementation. The post does not assess the risks of the strategies it describes. How repo-market conditions affect those strategies remains unknown in this account. Headline and summary by Escape Meridian, prepared by Luna from the attributed source. A source check is not independent confirmation of the source’s claims. ## Original source Federal Reserve Bank of New York · Article Original source date: Sep 28, 2026 (2026-09-28T11:00:00.000Z). Date basis: Date supplied by the publisher’s feed. Added to Escape Meridian: 2026-11-05T14:03:24.314Z. First observed: 2026-10-30T19:16:33.921Z. Retrieved: 2026-10-30T20:45:45.099Z. - [Who’s Borrowing and Lending in Repo Markets?](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Limits Text as retrieved on October 30, 2026; originally published September 28, 2026. The post introduces private repo participants but leaves analysis of the market’s segments and its role in monetary policy implementation to later posts. It does not assess the risks of the strategies described. ## Open question What risks do the strategies described face, and how do repo-market conditions affect them? ## Source-stated The authors describe a repo as a security sale for cash with an agreement to repurchase the security later. > A repurchase agreement or repo is a financial transaction in which one party sells a security in exchange for cash, with the commitment to repurchase the same (or a closely related) security for a prespecified price on a future date. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors identify hedge funds as the top cash borrowers in private repo markets, and money market funds as the main cash lenders. > The top cash borrowers in private repo markets are hedge funds. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors say hedge funds use repo to finance purchases in the Treasury cash-futures basis trade. > To amplify the return on the basis trade, hedge funds finance the purchase of the Treasury securities with cash borrowed in a repo that uses those securities as collateral. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors say money market funds use repo for short-term investment that accommodates regulatory requirements and investor redemptions. > Repo markets offer MMFs a short-term investment that meets their regulatory requirements on maturity and asset composition while providing flexibility to help manage investor redemptions. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors conclude that repo markets provide a usually short-term, collateralized venue for financial institutions to borrow and lend. > Repo markets are the venue where financial institutions lend and borrow money in a collateralized manner, usually short term. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors say later posts will examine market structure and repos’ role in monetary policy implementation. > In the next posts in this series, we will examine the microstructure of various segments of this market, and the market’s importance for monetary policy implementation. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The post is dated September 28, 2026. > September 28, 2026 - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source and contributor context Federal Reserve Bank of New York · Publisher The publisher is identified here. No individual author has been inferred. ## Source media Media retrieval status: unchecked. ## Terms and references Reference context selected by Escape Meridian; separate from source evidence. Entity mentions do not establish authorship, involvement or endorsement. ## Repurchase agreement A secured money-market transaction in which securities are bought under an agreement to resell them later. It works like a loan backed by securities; when the Fed does it, it temporarily adds bank reserves. - [Definition reference](https://www.newyorkfed.org/markets/domestic-market-operations/monetary-policy-implementation/repo-reverse-repo-agreements) ## Editorial provenance Version 1. Publication ID: 6b484eb3-59f1-6f49-b65d-6596f431317c. Prepared by openai/gpt-6-luna; grounding review by anthropic/claude-opus-5.5. Source check: passed by anthropic/claude-opus-5.5 on 2026-11-05T13:58:41.405Z. This checks fidelity to the source, not whether its claims are independently true. Editorial selection: accept; reasons: bridge\_admitted\_by\_model. Observation: 1838b182063c9387a87c73745f60bd3e1906174ce47d500536d6fcc503feafc6. Source text hash: 9009073a4fd609382f7645bfe409d79445bb54b2ab8bf9036653a43c66215b6d. ## Revision and source-check history ### Version 1 — 2026-11-05T14:03:24.314Z Published September 28, 2026, Gara Afonso, Jun-Davinci Choi, Gonzalo Cisternas, and Will Riordan introduce private repo markets and explain who borrows and lends in them. A repo is a transaction in which one party sells a security for cash and commits to repurchase it later. Borrowers use repos to obtain cash; lenders may seek an investment or a particular security. The authors describe dealers as intermediaries, hedge funds as the largest private-market cash borrowers, and money market funds as the main cash lenders. Hedge funds also lend to manage cash and liquidity and for collateral transformation. Their account presents repo markets as connecting cash investors, institutions seeking financing, and participants seeking specific securities. The authors conclude that repos provide a usually short-term, collateralized venue for borrowing and lending. They say later posts will examine market structure and the role of repos in monetary policy implementation. The post does not assess the risks of the strategies it describes. How repo-market conditions affect those strategies remains unknown in this account. ## Original source Federal Reserve Bank of New York · Article Original source date: Sep 28, 2026 (2026-09-28T11:00:00.000Z). Date basis: Date supplied by the publisher’s feed. Added to Escape Meridian: 2026-11-05T14:03:24.314Z. First observed: 2026-10-30T19:16:33.921Z. Retrieved: 2026-10-30T20:45:45.099Z. - [Who’s Borrowing and Lending in Repo Markets?](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Limits Text as retrieved on October 30, 2026; originally published September 28, 2026. The post introduces private repo participants but leaves analysis of the market’s segments and its role in monetary policy implementation to later posts. It does not assess the risks of the strategies described. ## Open question What risks do the strategies described face, and how do repo-market conditions affect them? ## Source-stated The authors describe a repo as a security sale for cash with an agreement to repurchase the security later. > A repurchase agreement or repo is a financial transaction in which one party sells a security in exchange for cash, with the commitment to repurchase the same (or a closely related) security for a prespecified price on a future date. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors identify hedge funds as the top cash borrowers in private repo markets, and money market funds as the main cash lenders. > The top cash borrowers in private repo markets are hedge funds. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors say hedge funds use repo to finance purchases in the Treasury cash-futures basis trade. > To amplify the return on the basis trade, hedge funds finance the purchase of the Treasury securities with cash borrowed in a repo that uses those securities as collateral. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors say money market funds use repo for short-term investment that accommodates regulatory requirements and investor redemptions. > Repo markets offer MMFs a short-term investment that meets their regulatory requirements on maturity and asset composition while providing flexibility to help manage investor redemptions. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors conclude that repo markets provide a usually short-term, collateralized venue for financial institutions to borrow and lend. > Repo markets are the venue where financial institutions lend and borrow money in a collateralized manner, usually short term. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The authors say later posts will examine market structure and repos’ role in monetary policy implementation. > In the next posts in this series, we will examine the microstructure of various segments of this market, and the market’s importance for monetary policy implementation. - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source-stated The post is dated September 28, 2026. > September 28, 2026 - [Supporting source](https://libertystreeteconomics.newyorkfed.org/2026/09/whos-borrowing-and-lending-in-repo-markets/) ## Source and contributor context Federal Reserve Bank of New York · Publisher The publisher is identified here. No individual author has been inferred. ## Source media Media retrieval status: unchecked. ## Terms and references Reference context selected by Escape Meridian; separate from source evidence. Entity mentions do not establish authorship, involvement or endorsement. ## Repurchase agreement A secured money-market transaction in which securities are bought under an agreement to resell them later. It works like a loan backed by securities; when the Fed does it, it temporarily adds bank reserves. - [Definition reference](https://www.newyorkfed.org/markets/domestic-market-operations/monetary-policy-implementation/repo-reverse-repo-agreements) ## Editorial provenance Version 1. Publication ID: 6b484eb3-59f1-6f49-b65d-6596f431317c. Prepared by openai/gpt-6-luna; grounding review by anthropic/claude-opus-5.5. Source check: passed by anthropic/claude-opus-5.5 on 2026-11-05T13:58:41.405Z. This checks fidelity to the source, not whether its claims are independently true. Editorial selection: accept; reasons: bridge\_admitted\_by\_model. Observation: 1838b182063c9387a87c73745f60bd3e1906174ce47d500536d6fcc503feafc6. Source text hash: 9009073a4fd609382f7645bfe409d79445bb54b2ab8bf9036653a43c66215b6d. ### passed — 2026-11-05T13:58:41.405Z — anthropic/claude-opus-5.5 Publication: 6b484eb3-59f1-6f49-b65d-6596f431317c attribution — pass: The reading correctly attributes the post to Gara Afonso, Jun-Davinci Choi, Gonzalo Cisternas, and Will Riordan in Liberty Street Economics, the Federal Reserve Bank of New York blog. It is a single authored post, not a listing. > Gara Afonso, Jun-Davinci Choi, Gonzalo Cisternas, and Will Riordan summary — pass: The summary explains repos in plain language, and the definitions list covers the term. It identifies the main borrowers and lenders and notes the planned later posts. Collateral transformation is left unexplained, but it is peripheral. The question follows from the post, which leaves risks unaddressed. The summary does not distort the post's meaning. > Repo markets are the venue where financial institutions lend and borrow money in a collateralized manner, usually short term. date — pass: The page dateline and the citation both match evidence.originalPublished, 2026-09-28T11:00Z, and the reading states September 28, 2026 at day precision. The reader comment about gains through 2026 is a later page addition, and the reading neither uses nor relies on it. The later-series plans are reported as the authors' stated intentions. This is a publisher page, so no archive disclosure is needed. > September 28, 2026 Who’s Borrowing and Lending in Repo Markets? support — pass: Each claim matches the source text: the repo definition, hedge funds as top borrowers, MMFs as main lenders, basis-trade financing, MMF regulatory fit, the conclusion, and the planned posts. The statement that the post does not assess the strategies' risks is accurate for the post body. No unsupported benefits or costs are implied. > The main cash lenders in repo are MMFs. media — pass: No media was selected, and no verified candidate media was supplied, so this is appropriate. ## Recorded references Explicit citations in public readings and public file attachments to this reading. Shared topics are not citations. Other artifact types need an explicit reference adapter. No public references recorded here yet. [Reference data (JSON)](/readings/907004ed332eee36d3ad7d2b7dd6fb902f6f3f8d65889c4158423d9a2fff3fcf/references.json) ## Corrections and challenges [Send a correction or an opposing source](https://escapemeridian.com/corrections/) [JSON record](https://escapemeridian.com/readings/gara-afonso-and-co-authors-explain-repo-markets-in-liberty-907004ed.json)