On 24 July the desk's stance was explicit. WTI crude's monthly rally of 25.72% was pricing a live Iran escalation risk that the rates market was not reflecting. The yield's stretch, in that reading, was a fiscal supply story, not a war-risk repricing. The falsifier was just as explicit: the 2-year Treasury yield would need to fall meaningfully below 4.31% in the sessions following the 27-28 July Treasury auctions, even as WTI crude held its gains, for the fiscal-supply framing to fail.
Neither leg of that condition has fired. But the picture has moved. WTI crude is trading at 80.70 so far on 28 July 2026, down 2.31% on the day and 4.96% over five sessions, after touching a 20-day high of 92.19. That retreat lines up with reports, dated 26 July, that US strikes in Iran paused amid Omani-mediated talks in Tehran, and that Iran signalled it would halt attacks if the pause held. Crude is not holding its gains. The war-risk premium the desk flagged is deflating in real time.
The 2-year Treasury yield, meanwhile, is unmoved. It last stood at 4.33%, still in the 99.6th percentile of its trailing year with a z-score of 2.47, barely different from the reading the desk cited on 24 July. It has not fallen below 4.31%, let alone meaningfully so. The fiscal-supply framing survives its own test so far: a yield anchored by issuance, not by geopolitical risk premium, does not move when the geopolitical premium starts to unwind.
The diagnosis holds, but only partway. That the 2-year's stretch is a supply story rather than a war story checks out: crude cooled and the yield did not follow. But the original pairing assumed WTI crude would keep its gains while the test ran. It has not, so the test is now partial. The fiscal side is still doing the work the desk assigned it: net Treasury issuance of $106.8bn in the last seven days is described as a supply tsunami, and the Treasury General Account added $70.9bn over the same week, a drain the desk's fiscal read calls a liquidity headwind, not an easing one.
A 2-year Treasury yield that ignores a fading war premium is a yield still being priced by the auction calendar, not by Tehran.
The market-implied path corroborates the framing without settling it. Fed funds futures price the front rate at 3.72% now, rising to an implied 4.185% in twelve months, a firmer path of 46.5 basis points, not cuts. A curve pricing tighter policy for longer fits a front end held up by supply and by a rate path that is not falling, regardless of what crude does next.
The near-term test is mechanical, not geopolitical. The Treasury sells 7-year notes on 28 July and 2-year notes on 29 July, with the Federal Funds Rate decision due the same day (forecast unchanged at 3.75%) and Core PCE due 30 July (forecast 0.2%, down from 0.3% previously). If the 2-year Treasury yield still fails to break meaningfully below 4.31% once those auctions clear and the Fed statement lands, the supply-and-issuance framing holds outright. If it does break below that level in the sessions that follow, even with crude's retreat as the more obvious explanation on the tape, the desk's own falsifier fires and the flight-to-quality read the 24 July note dismissed becomes the better one.
