PM Starmer's resignation date pushed back by 3 days to 21 September

· implied p50 shift

Briefing

The date by which Prime Minister Keir Starmer is expected to announce his resignation has shifted from 18 September to 21 September, according to the latest Polymarket data. This represents a 3-day delay in the anticipated timeline for the PM's departure.

The change in the implied resignation date suggests increased market confidence that Starmer will remain in office for slightly longer than previously anticipated, though the probability of his exit by the new date is still estimated at ~86%.