Hedge funds and the Treasury cash-futures basis trade
The paper finds hedge funds’ Treasury cash futures basis trade is central, topping $1 trillion in gross exposure. Basis traders make up over 60 percent of hedge fund Treasury positions and about 70 percent of repo use. Strikingly, wider basis spreads coincide with larger positions when margins, haircuts, and repo limits bind, as in March 2020. Using data, tests, and a simple model, the study maps financing frictions to systemic risk. Limits include identification issues.
What it examines
The paper examines hedge funds’ Treasury cash‑futures basis trade, documenting its scale and role in repo. It analyzes how market frictions shape the relation between spreads and arbitrage size, and how these dynamics link to stress episodes such as March 2020, using position and exposure evidence.
What it concludes
Findings imply frictions can make arbitrage larger when spreads widen, amplifying stress and transmitting shocks through repo and futures. Applications include monitoring leverage, margin policy, and stress testing of basis trades. Limitations include data scope; future work should assess microstructure channels and policy tools that dampen procyclical funding strains.
Evidence objects
Hedge funds Treasury cashfutures basis trade is vast, at times topping $1 trillion in gross exposures, dominating activityover 60% of Treasury positions and 70% of repo usemaking it marketplumbing central.
key_findings bullet 1 · key_findings · validation V0
Strikingly quantities and basis spreads move together when frictions bitedefying textbook arbitrageas margins, haircuts, and repo constraints slow convergence and can amplify stress, a pattern visible during March 2020 turmoil.
key_findings bullet 2 · key_findings · validation V0
Study quantifies basis trading dominance and links financing frictions to systemic risk using regulatory data, empirical tests, simple model; strong measurement, policy relevance; limited causality, leverageterm granularity, Treasuriesonly generalizability noted.
key_findings bullet 3 · key_findings · validation V0
Empirical study of Treasury cash--futures basis markets quantifies massive positions ($> \$1\text{T}$) and hedge-fund dominance (basis traders: $>60%$ of Treasury holdings; $70%$ of repo). Novelty lies in scale and granular decomposition, linking frictions to $Q$--spread co-movement, illuminating stress transmission (e.g., March 2020). Compelling for practitioners and policymakers despite familiar frame.
key_findings bullet 4 · key_findings · validation V0
Raw abstract and provenance
This paper studies hedge funds’ arbitrage positions in the Treasury cash-futures basis trade, which profits from the disconnect between cash and futures prices. At times, the trade has surpassed $1 trillion in gross exposures. Basis traders consistently account for more than 60% of all hedge fund Treasury positions and 70% of all hedge fund repo. We show how frictions can introduce a positive association between arbitrage quantities and spreads, and how these frictions may propagate stress in the Treasury market during periods of instability such as in March 2020.
Source row: 1016 · abstract type: unknown