Treasury Short Positions Swell as 10-Year Repo Rate Drops to 2.70%
nashnova research
The 10-year Treasury repo rate fell as low as 2.70% intraday — well below the general-collateral rate — signaling heavy short positioning; with a $39 billion reopening on October 7, the pressure may not ease soon.
Why does a falling repo rate signal short sellers?
The 10-year Treasury repo rate hit 2.70% intraday, closing at 3.75%. The general-collateral repo rate closed at 3.92%.
This means → traders are paying a premium to borrow this specific bond so they can sell it short. In market jargon the bond is trading "on special" — when heavy short demand targets one issue, its borrowing cost drops below the market average.
In plain terms = the wider the gap below the general rate, the more crowded the short trade.
Who is shorting, and why is it expected?
Scott Skyrm, executive vice president at Curvature Securities, said: "There are a lot of short positions in the market. It's not surprising to see heavy shorting in the 10-year."
He noted that the upcoming WI announcement — when-issued trading before the auction — and the auction itself will generate more shorts. He expects the 10-year to stay volatile over the next two weeks.
This reflects a routine playbook: open short positions ahead of a reopening, then cover with cheaper new supply after the auction.
Why did the yield spike to a two-decade high?
The 10-year yield touched 5.28% intraday — the highest since 2002 — before pulling back.
Four pressures converged: the Fed's prolonged inflation fight + oil near $100 a barrel + the AI infrastructure spending boom + federal debt at a record $40 trillion.
This means → the market is pricing both "higher for longer" rates and "the government can't stop borrowing" at the same time, pushing yields to extreme levels.
Will the reopening ease the pressure?
The Treasury announced a $39 billion reopening of the 10-year on October 7. Total outstanding will top $92 billion, including about $10.6 billion held by the Fed.
Normally, more supply relieves "special" pressure — more bonds available means cheaper borrowing.
But Skyrm warns that the short base is so deep that the usual logic is not working. In plain terms = the new supply may not be enough for shorts to absorb, so the squeeze could persist.
What are other maturities and funding markets signaling?
Last month, the 2-year and 5-year Treasuries also went "on special" around month-end settlement, but that pressure faded after September 30.
Demand to borrow older issues — off-the-run bonds, no longer the newest vintage — remains elevated. The 5-year issued in August saw its repo rate drop to 0.75%, and hit negative 1% on Wednesday.
The secured overnight financing rate (SOFR) printed 3.90% on September 30, up 2 basis points. Treasury repo fails rose to $36.8 billion, above the five-day average. Total secured repo activity hit $2.73 trillion, the highest since June 30.
This reflects a broader pattern: short-side crowding extends across the curve, not just the 10-year.
What comes next?
The key date is October 7 — whether the market absorbs the new supply will determine if shorts begin to cover.
Strong auction demand would bring fresh bonds into circulation, easing borrowing pressure and normalizing repo rates.
Weak demand could embolden shorts further, deepening the "special" and amplifying yield volatility around the 10-year.
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