Britain’s sixth prime minister in a decade steps down. Let me tell you what it means for your money.
I was watching this morning when, outside that famous black door at Number 10, Keir Starmer announced he was resigning as Prime Minister and Labour leader — the sixth person to walk away from that job in just ten years. Sit with that number for a moment. Two years ago, Labour won a landslide. This morning, the majority feels like it belonged to a different century entirely.
The fall from historic victory to political exit was, by any honest measure, steep. An economy that wouldn’t get moving. A cost-of-living squeeze that refused to loosen its grip. A run of policy stumbles. And over all of it, the long shadow of the Mandelson-Epstein affair, chipping away at public trust until there was nothing left to chip. By early 2026, YouGov had Starmer’s net favourability at -57 — the sort of number you last saw attached to Liz Truss. By June, more than 110 of his own MPs had put their misgivings in writing. At that point, the arithmetic of survival stops adding up, and everybody in the room knows it.
He stays on as caretaker while a successor is chosen. Andy Burnham — who rather conveniently won himself a parliamentary seat only last week, in what looked to me like a run-up you could time with a stopwatch — is the front-runner. And so the Labour leadership contest begins in earnest.
“Markets don’t vote. They price the result in advance — and charge you for the suspense.”
Let me be straight with you about what this actually does to markets
You deserve the honest answer rather than the dramatic one, so here it is: in the short term, less than the headlines would have you believe. The pound and gilts will get a bit jumpy while markets work out which way the next leader leans on the economy. If Burnham is confirmed quickly and sounds credible and centre-ground about money, I’d expect that turbulence to stay fairly contained. If the contest drags on, turns nasty, or a successor signals a sharp lurch in fiscal policy — that’s when sterling could feel more sustained pressure.
UK shares are a more mixed bag, and here’s a distinction I always come back to. The FTSE 100 earns most of its money abroad, so it’s far less bothered by Westminster drama than people assume. It’s the mid-cap FTSE 250 — far more plugged into the actual UK economy and the mood of the British consumer — that tells you the real story. So that’s the index I keep an eye on in moments like this. It’s the better barometer of whether the market actually believes in whoever ends up behind that door.
The bigger picture, which is the one I care about most
Six prime ministers in ten years. That’s not just a political soap opera — it’s a signal, and international investors read it loud and clear. A country that changes economic direction every time the leadership changes hands becomes a genuinely harder place to back with confidence. Long-term infrastructure, stable regulation, and trade deals that mean something all of it needs a government that looks likely to be standing when the bill comes due.
Whoever wins inherits that credibility gap along with everything else. And rebuilding it — especially in the eyes of the bond markets, which quietly decide what it costs the government to borrow — is, to my mind, the single most important financial job facing the next occupant of Number 10. Politicians can spin a lot of things. Bond markets are a notoriously tough audience.
So how do I handle a moment like this myself? Honestly, the same way I handle every burst of political noise: I stay diversified, I refuse to let drama shove me into a panicky decision I’ll regret by autumn, and I keep reminding myself that political theatre — however loud, however historic it feels on the day — is rarely the thing that decides long-term returns. The headlines are designed to feel enormous. My job is to remember they usually aren’t.
The Jacqueline Brand — knowledge builds confidence, confidence builds wealth. This is editorial commentary for inspiration, not financial or professional advice. Always do your own research. The Collection
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