Labour's conference paired new spending ambitions with a pledge to meet the fiscal rules.
Date: 13 October 2026
Markets took the speeches largely in their stride, but amid a global bond sell-off the 30-year gilt yield closed on 30 September at 5.95%, near its highest level in almost three decades. The Budget on 28 October remains an important moment for anyone with UK bonds, pension liabilities or borrowing.
These are party pledges; they become government policy only through the Budget, legislation or formal publication.
Gilts rallied before the Prime Minister's speech, then the 10-year yield rose from 5.35% to 5.43% as his spending plans unfolded. That day's 10-year gilt auction cleared at an average yield of 5.38%, the highest at a 10-year auction since 1999, with demand solid but softer than at the previous sale.
By close of business on 30 September, the 10-year gilt yield stood at 5.44% and the 30-year at 5.95%, amid a global bond sell-off driven by oil-led inflation, rising interest rates and government borrowing, so global factors were also at play. On 1 October the 30-year yield briefly topped 6%, its highest since 1998, before easing back. The FTSE 100 closed at 10,606, after a second consecutive monthly fall. Higher borrowing costs have reportedly eroded around half of the Chancellor's fiscal headroom. Three upcoming dates for investors to keep an eye on:
In our view, inflation and the Budget's credibility will matter far more for gilt yields than anything said at conference.
Higher yields and interest rates mean higher income on new bond purchases and cash, which may support spending plans, but bond and equity values fell in late September and could move sharply again on Budget news. Ask fund managers how bond holdings, including any water company bonds, are positioned. Review cash holdings and terms.
With markets seeing a November rate rise as likely, now is a sensible time to review refinancing timing, interest-rate hedging and returns on surplus cash, and to be ready to assess any business tax changes on 28 October. Great British Grid could ease connection delays for power-intensive or expanding operations, though not quickly. DB sponsors should note that yield moves affect both accounting and funding positions.
Important information: This note is for general information only and is not investment, legal or tax advice. Market data are as at close of business on 30 September 2026; proposals may change before becoming law. Please speak to your Cartwright consultant before taking any action.
Sources: PM speech - Chancellor speech - IFS- PSL- Reuters (water) - Trading Economics - Proactive- City AM
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