Does the leveraged Treasury basis trade pose risks to market functioning?
Core argument: The Treasury basis trade stands at roughly $800 billion and forms an important part of the $2 trillion outstanding in prime brokerage balances, and is expected to expand as US government debt levels grow.
Yesterday long-term interest rates went up 20 basis points despite stocks going down. One potential reason for the move higher in rates is an unwind of the basis trade. The basis is the difference in price between a Treasury security and a Treasury futures contract with similar characteristics. The source of this price difference is demand and supply imbalances in Treasury markets, or arbitrage limitations for regulatory reasons. In the basis trade, hedge funds put on leveraged bets, sometimes up to 100 times, with the goal of profiting from the convergence between the futures price and the bond price, as the futures contract approaches expiry. How big is the basis trade? It is currently around $800 billion and an important part of the $2 trillion outstanding in prime brokerage balances. It will continue to expand as US government debt levels continue to grow. Why is this a problem? In case of an exogenous shock, the highly leveraged long positions in cash Treasury securities by hedge funds are at risk of being rapidly unwound, which could lead to a significant disruption in market functions of broker-dealer firms.



