The claim: The consensus is watching the wrong number. A basis book dies when its financing dies, never because the bond it holds fell in price, and financing is published every morning, free, at T+1.
The numbers: Leveraged money is short $823.6 billion of Treasury futures notional (CFTC Traders in Financial Futures, 25 Aug 2026, my reconstruction from contract counts). SOFR’s 99th percentile spread has held a 7 to 9 basis point band since 14 August. On 16 March 2020, the one day this trade actually broke, that spread went from 12 basis points to 174 in a single session.
The catalyst: On 31 August 2026 the CFTC pushed the Form PF amendments to July 2027, a fourth extension, while the US 30-year printed 5.25% and Japan’s 10-year crossed 3% for the first time since 1996.
Wrong if: SOFR’s 99th percentile spread closes above 20 basis points for two consecutive sessions, or Standing Repo Facility take up clears $30 billion on a non quarter end day. Both are public and free, and neither has happened.
Below the paid line:
The full five dial monitor with every endpoint URL, the exact JSON field to read, and a threshold on each set against that dial’s own trailing distribution
The 16 March 2020 SOFR percentile table, the signature a real unwind leaves in the funding data
My contract by contract notional reconstruction: 7,003,041 contracts to $823.6 billion of net short, with the CME face values and the arithmetic shown
The haircut arithmetic: what a one point widening calls in cash across the whole book, and why fifty to one is defensible until it’s not
The four week direction of the leveraged net short, which the consensus never quotes
The bilateral repo blind spot, and the one condition under which this entire read fails
