Hedge Funds Unwind Treasury Basis Trade, Scale Drops to $1.2 Trillion
nashnova research
Morgan Stanley estimates that hedge-fund capital locked in leveraged Treasury basis trades has fallen 20% this year to $1.2 trillion, as stabilising rate expectations and improved trading conditions squeeze the strategy's profit margin — prompting a broader reassessment of leveraged government-bond plays.
What does the basis trade actually earn money on?
The basis trade — a strategy that exploits the tiny price gap between cash Treasuries and Treasury futures — works by borrowing overnight at high leverage to magnify a razor-thin spread.
In plain terms = the spread itself is minuscule; you need massive borrowed capital to make it worthwhile, so the trade lives or dies on low borrowing costs and a wide enough gap.
This year both conditions deteriorated at once: rate expectations flattened the gap, more counterparties crowded the space, and the margin shrank below the point where leverage pays.
How did three forces squeeze profits at the same time?
Asset managers dialled back demand for Treasury futures, weakening the buy-side pressure that had kept the cash-futures spread wide.
Large bank dealers now hold more Treasury inventory after regulatory-rule adjustments, adding cash-bond supply and compressing the basis further.
Treasury Secretary Scott Bessent's bond-buyback programme pushed up prices on older issues. This means → the pricing distortion between old and new bonds narrowed, shrinking yet another layer of arbitrage room.
Why is the retreat concentrated at the short end?
Morgan Stanley notes the pull-back is heaviest in futures tied to 2-year and 5-year Treasuries — the front end of the yield curve.
This means → short-dated bond prices are the most sensitive to Fed rate expectations; when those expectations stabilise, front-end basis trades lose their edge first.
CFTC data confirms: hedge-fund net shorts in 2-year Treasury futures have fallen more than 40% from their March high and more than half from the December 2024 all-time peak.
Size shrank — did the systemic risk disappear?
Large hedge funds still carry substantial basis-trade exposure; two people familiar with the matter say the New York Fed has recently held discussions on the systemic risk these positions pose.
A 2024 academic paper warned that a sudden rate reversal could trigger a market shock through duration gaps — the mismatch between asset and liability maturities — in mortgage-backed securities.
Morgan Stanley is more sanguine: neither the rise in dealer participation nor higher Treasury yields has triggered broad market stress linked to the basis trade in the current cycle.
How much longer can this trade survive?
Morgan Stanley analysts conclude: "Despite lower return attractiveness and shrinking notional size, we believe the trade remains alive and functioning normally."
This reflects a subtle reality: the basis trade hasn't collapsed, but it has downshifted from a high-return strategy to a thin-margin maintenance mode.
The next critical watch-point: if rate expectations turn volatile again, whether basis-trade size rebounds or contracts further will determine the fate of this trillion-dollar strategy.
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