The Holborn and St Pancras by-election, triggered by Starmer’s resignation as an MP, now has its first notable challenger. Green Party leader Zack Polanski has confirmed he’ll stand, framing it around cost-of-living pressures. It’s an early test of whether the Greens can translate their recent polling momentum into a high-profile Westminster seat — and a headache for Labour in a constituency it would normally expect to hold comfortably.

The UN’s World Meteorological Organisation has warned of a “supersized” El Niño developing, with potential to disrupt global economies. No specifics in the reporting on timing or magnitude, but for anyone with commodity exposure or emerging market positions, it’s worth flagging. El Niño events historically tighten soft commodity supply and amplify weather volatility across South and Southeast Asia, East Africa, and Latin America.

China’s latest attempt to move beyond the property slump is drawing scepticism. The Economist’s read is that the new policy mix risks hurting construction and employment — the two channels through which any stabilisation would actually need to flow. Mexico is facing a similar credibility problem: bond markets remain unconvinced by Sheinbaum’s fiscal approach, and the spread pressure reflects it.

On AI infrastructure, The Economist’s framing of Nvidia as “the central bank of AI” is worth sitting with — the argument being that Nvidia’s capital allocation decisions, like a central bank’s, shape the entire system’s risk appetite. The question the piece raises, whether those loans prove sound, is the right one as hyperscaler capex commitments start coming up against earnings scrutiny.

Google has avoided a forced break-up of its advertising business. The judge ruled against divestiture but did order structural changes to how Google operates in the ad stack, benefiting competitors at the margin. Not a clean win for Google, but far from the worst outcome markets had been pricing.

Palo Alto Networks has acquired Console for around $500 million. The deal was backed by Thrive, and the read from industry watchers is that it leaves Sequoia-backed Serval as the leading independent in AI-driven IT service automation — a space worth watching as enterprise AI spending shifts from pilots to infrastructure.

US jobs data for August prints tomorrow.

Sources

BBC News, Guardian, FT, The Economist, Politico, Al Jazeera, TechCrunch, Ars Technica — 2026-09-03