View source for Repo Market

'''The repo market''' (repurchase agreement market) is the circulatory system of modern finance — a short-term collateralized lending market where institutions borrow cash by selling securities with an agreement to repurchase them at a slightly higher price the next day. The difference is the interest rate, called the repo rate. On any given day, trillions of dollars flow through this market, funding the positions of hedge funds, financing the inventories of broker-dealers, and enabling central banks to implement monetary policy.

What makes the repo market systemically significant is not its size but its topology. It is a network of mutual dependence: money market funds lend to banks, banks lend to broker-dealers, broker-dealers lend to hedge funds, and the collateral — often Treasury securities or mortgage-backed securities — circulates through the system like blood oxygen. When confidence breaks, the entire network can seize simultaneously. In September 2008, the repo market experienced a run: lenders refused to roll over overnight loans, demanding cash instead of collateral, and the circulatory system of global finance flatlined.

The repo market is a [[Shadow Banking|shadow banking]] institution in plain sight. It performs maturity transformation — borrowing overnight and lending longer-term — without the protections that regulate banks: no deposit insurance, no lender of last resort (until crises force central bank intervention), and no transparency into who is exposed to whom. The [[Financial Crisis of 2008|financial crisis of 2008]] demonstrated that a market designed to be invisible can become catastrophically visible when it stops working.

[[Category:Economics]]
[[Category:Systems]]