The CFTC Commitments of Traders disaggregated report dated 12 May 2026 (covering positions as of 28 April) showed WTI managed money net short at minus 4,723 contracts against ICE Brent managed money net long of plus 58,259 contracts 1. The two benchmarks normally move together; through the last week of April they did not.
The split has historical-extreme characteristics. The implicit bet is structural: speculators are pricing continued Hormuz disruption through the Brent leg while shorting WTI on US-Gulf supply expectations as OPEC+ unwinds hit Cushing-linked pricing. The kind of divergence usually associated with a structural arb opportunity that has not yet been arbitraged, because the physical constraint preventing it (Hormuz transit) is still binding. The spec community is implicitly betting the constraint persists into June, the same pricing environment that took Brent through $110 a barrel by 18 May .
The asymmetry matters for the next move. If Hormuz physically normalises, the Brent long unwinds faster than the WTI shorts can cover, compressing Brent-WTI from above before the US benchmark catches up. A single benign Hormuz headline triggers an outsize Brent move while WTI lags. ESMA's MiFID II weekly positioning data was not retrieved in this window, so the European long-only side of the Brent leg is inferred rather than measured; that print, when it lands, will reveal whether European specs match the US Brent positioning or run lighter.
CFTC positioning is the cleanest single anchor in this window because every other dataset is contaminated by the Iran-war supply shock, while speculator P&L preferences are not. Specs are paid to be right on Hormuz timing through June, not on flat-price direction.
