Curriculum·R407 Advanced Market Mechanics·about 43 min
Delta-neutral and carry strategies
By the end of this lesson you can
- →State what delta-neutral removes and the five exposures it leaves behind
- →Compute the leverage a small spread requires to produce a meaningful return
- →Show how a one point change in a haircut forces a third of a book to close
- →Explain why every carry trade is short liquidity
Senior · enrolled learners
This lesson opens with The Treasury cash-futures basis unwind, March 2020.
- What happened
- The Treasury cash-futures basis trade buys cash Treasuries financed in the repo market and sells the corresponding futures, capturing a small spread with no first-order interest rate exposure. Because the spread is small, the trade is run at very high leverage against the repo haircut, and at times its gross exposures have exceeded $1 trillion, with basis traders accounting for more than 60 percent of hedge fund Treasury positions and 70 percent of hedge fund repo. In March 2020 repo rates spiked, raising the financing cost of the cash leg, while futures margin requirements rose at the same time. Hedge funds cut short futures positions in the two, five and ten year contracts from about $659B to about $554B between 18 February and 17 March, and large basis traders sold an estimated $91B to $105B of cash Treasuries. The Bank for International Settlements warned that sudden fluctuations in futures margin leverage may give rise to destabilising margin spirals, and noted that a disorderly reduction in margin leverage worsened fixed income market distress in both 2019 and March 2020.
- The decision point
- The trade had no view on interest rates and made money from a spread that had to be levered enormously to matter. What ends a position like that is never the spread moving. It is the financing cost rising and the margin requirement rising at the same moment, which are two prices nobody was watching because neither of them appears in the profit and loss until they force a sale.
What you will be able to answer
- →What does delta-neutral remove?
- →Why must a carry trade be levered?
- →What does a one point haircut change do?
- →Why is every carry trade short liquidity?
Orientation and Year One are open: anyone can read them without an account. From Year Two onward the lessons are for enrolled learners, because progress through the later years only means anything if it is tracked against a record.
It is free. We do not sell the list and there is nothing to buy at the end of it.
Sources and review
- https://www.federalreserve.gov/econres/notes/feds-notes/quantifying-treasury-cash-futures-basis-trades-20240308.html
- https://www.bis.org/publ/qtrpdf/r_qt2309w.htm
- https://www.financialresearch.gov/working-papers/files/OFRwp-21-01-hedge-funds-and-the-treasury-cash-futures-disconnect.pdf
- https://capmktsreg.org/wp-content/uploads/2023/12/An-Overview-of-the-Treasury-Basis-Trade-12-20-23-FINAL.pdf
Confidence medium·Volatility medium·Reviewed 2026-08-07·Owner unassigned
Contested
How much of the March 2020 Treasury market dysfunction the basis unwind caused, as against dealer balance sheet constraints and foreign official selling, is actively debated among researchers and official bodies. Per P6 this lesson relies on the measured position reduction and the BIS observation about margin leverage, both of which are documented, and does not assign a share of causation.
The leverage and haircut figures in parts two and three are stated inputs chosen so the arithmetic is checkable. Actual repo haircuts on Treasury collateral are typically far smaller than the two percent used here, which makes real leverage higher and the effect described stronger rather than weaker.
R401-05 owns basis and carry as instrument properties. J303 owns liquidity provision. This lesson owns the delta-neutral book and what remains after the price exposure is removed. Keep the splits.