Monday London Pivot: Iran Deal Sunday Signing Collapsed; Brent Gaps Higher; Gilt Yields Back Above 5%
UK and European markets face a Monday open materially worse than Friday’s close after the Iran deal Sunday-signing pivot collapsed through Sunday. The FTSE 100 closed Friday at 10,455; Brent crude at $95.20; UK 10-year gilt yields at 4.99%. With the framework signing now slipped and Israel-Hezbollah back to direct exchanges in Beirut, Brent gaps higher to $98-103 on the Monday open and gilt yields back above 5%. The Bank of England MPC’s decision later this week is the binding macro variable. The framework probability framing has re-rated from 80-85% Saturday-evening to 50-60% Sunday-evening.
The Monday open re-rating is the structural cost of the Sunday Trump-signing credibility collapse. The Brent $98-103 gap-higher path means the Ofgem October price-cap reset is in jeopardy of breaking out of the $88-95 range that delivers a flat October cap. The Bank of England MPC’s decision this week is the binding macro variable: Brent at $100+ with gilt yields above 5% changes the inflation outlook materially; Reeves’s fiscal-headroom position is materially compressed. The political-mathematical question for the Chancellor is whether the framework signing arrives before the Burnham-Starmer leadership-question crystallises through the post-Makerfield Friday-evening cycle. The Tuesday Tehran decision window after Khamenei’s funeral is the next structural pivot.