Planet Money

How the government got hedge funded

October 10, 2025

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  • The U.S. government's need to borrow money to cover deficits is facilitated by the deep and liquid Treasury market, which is now increasingly reliant on hedge funds engaging in the complex "Treasury basis trade." 
  • The Treasury basis trade involves hedge funds like Pine River Capital Management borrowing short-term cash from money market funds while simultaneously using Treasurys as collateral and buying Treasury futures, a multi-pronged activity enabled by their less-regulated status compared to primary dealers. 
  • The increased reliance on risk-taking hedge funds in the Treasury market creates a financial trilemma: the system can have safe banks, stable markets, or risk-takers, but not all three, leading to concerns about moral hazard and potential taxpayer bailouts if the trade unravels. 

Segments

Book Pre-order Promotion
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(00:00:00)
  • Key Takeaway: The Planet Money book is available for pre-order with a free gift and a free month of Planet Money+ for subscribers.
  • Summary: Alexey Horowitzgazzi promotes the pre-order of the Planet Money book, highlighting its creative explanations of the economy and illustrations. Pre-ordering grants a free gift and a free month of Planet Money Plus for non-subscribers. Further details are available at planetmoneybook.com.
Government Borrowing Basics
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(00:00:53)
  • Key Takeaway: The U.S. government sustains its structural spending deficit by borrowing money through the international bond market by selling U.S. Treasurys, which are traditionally viewed as extremely safe IOUs.
  • Summary: The government borrows money because its expenditures (Medicare, roads, defense) exceed its revenue from taxes. This borrowing occurs in the bond market via Treasurys, which promise periodic interest payments. Treasurys are highly popular globally because the U.S. is perceived as rich and reliable in paying its debts.
Treasury Market Depth and Risk
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(00:02:02)
  • Key Takeaway: The Treasury market is the deepest and most liquid in the world, but the resulting massive national debt means interest costs now exceed defense spending, creating fiscal risk dependent on foreign creditors.
  • Summary: The depth of the Treasury market is a double-edged sword, reflecting the large amount of U.S. debt amassed. Interest costs on this debt now surpass national defense spending. The government is subject to the whims of debt holders, who determine the interest rates paid.
Hedge Funds Enter Treasury Market
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(00:02:55)
  • Key Takeaway: Hedge funds, described as loosely regulated and risk-taking entities, have recently become major buyers of Treasurys, potentially destabilizing the financial system or aiding government borrowing.
  • Summary: Less predictable hedge funds are increasingly purchasing U.S. Treasurys, bringing their risk-taking attitudes to the traditionally stable market. Policymakers worry that reckless actions by these funds could result in taxpayers ultimately covering the costs of any resulting mess.
Treasury Auction Mechanics
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(00:05:46)
  • Key Takeaway: Treasury auctions are sober, disciplined events where primary dealers submit bids specifying the interest rate they require to lend money to the government for set terms.
  • Summary: Dilip Singh, formerly of the U.S. Treasury, describes the environment as safety-first, aiming to borrow as cheaply as possible. Auctions occur weekly, requiring potential lenders to bid on required interest rates for terms like three, five, or ten years. The results of the auction serve as a ‘clearing event’ indicating market sentiment regarding risk.
Primary Dealers’ Role
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(00:09:23)
  • Key Takeaway: Primary dealers, like Goldman Sachs, are one of 25 banks with a special agreement to always bid at Treasury auctions to ensure the government can always secure loans.
  • Summary: Anshul Segal at Goldman Sachs submits bids as part of his role as a primary dealer, deciding how much the bank will lend and at what interest rate. A successful day for a primary dealer means the auction results align with market expectations, ensuring no surprises.
Treasurys as Collateral and Liquidity
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(00:12:18)
  • Key Takeaway: Treasurys are crucial not just as investments but as the world’s largest collateral market, valued for their depth and liquidity, which makes them nearly as good as cash for securing risky financial bets.
  • Summary: Some investors hold Treasurys for interest, while others trade them, and many use them as collateral for riskier transactions. Their high liquidity—the ease and speed with which large volumes can be traded—is what makes them effective collateral, creating a virtuous circle of confidence and trading.
Risk Migration Post-2008 Crisis
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(00:15:18)
  • Key Takeaway: Regulations enacted after the 2008 financial crisis restricted risk-taking at banks, causing risk-seeking activity to migrate to less regulated sectors, notably hedge funds.
  • Summary: Post-2008 regulations aimed to make banks safer by restricting their risk exposure. However, market participants seeking profit opportunities moved this risk elsewhere. This migration has led to hedge funds taking on significant positions in the Treasury market via the basis trade.
Treasury Basis Trade Explained
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(00:17:17)
  • Key Takeaway: The Treasury basis trade involves hedge funds borrowing short-term cash from money market funds overnight while lending them Treasurys as collateral, and simultaneously selling Treasury futures to index funds seeking bond exposure.
  • Summary: Phil Prince of Pine River Capital Management explains that the trade meets the needs of money market funds, which require short-term, safe investments (collateralized overnight loans). It also serves index funds by allowing them to check the box for Treasury exposure using futures contracts instead of holding physical bonds, which are less profitable.
Systemic Risk of Leveraged Trade
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(00:21:58)
  • Key Takeaway: The $800 billion tied up in the basis trade poses a systemic risk because if prices jump, the complex web of collateral pledges could unwind disorderly, as collateral values drop and participants scramble to reclaim assets.
  • Summary: The trade relies on massive leverage, borrowing significant amounts of money to execute. If Treasury prices drop suddenly, the collateral securing these trades becomes insufficient, leading to disorderly selling across the system. This entanglement means the stability of the trade depends on hedge funds maintaining sufficient cash reserves to weather storms.
March 2020 Blowup and Fed Intervention
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(00:23:54)
  • Key Takeaway: The Treasury basis trade completely blew up in March 2020 during the pandemic panic, necessitating massive Federal Reserve intervention (buying nearly $3 trillion in Treasurys) to prevent widespread bankruptcies.
  • Summary: During the initial COVID-19 panic, the demand for cash caused the basis trade to fail, leading to painful losses for participants. Dilip Singh, then at the New York Fed, noted that buying $3 trillion in Treasurys was necessary to avoid tens of thousands of bankruptcies and severe economic scarring.
Moral Hazard and Regulatory Choice
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(00:26:35)
  • Key Takeaway: The structure of the market implies a trade-off where the government benefits from hedge fund participation but risks creating moral hazard, as these actors may take excessive risks knowing they could be bailed out.
  • Summary: Hedge funds have no obligation to market stability, yet their participation affects the government’s ability to fund itself. Moral hazard is defined as shifting risk onto society while benefiting personally from risky actions. The current structure forces a choice between safe banks, stable markets, or allowing high-risk market activity.