As buyers at the far end thin out, Britain shortens its borrowing

The seller stepped back, yet yields rose again

On 17 September the BoE rewrote how it will run down the bond stock left over from quantitative easing. According to a Reuters report published on AOL, the Monetary Policy Committee voted 9–0 to halt sales of extended-maturity gilts altogether. Of the remaining 488 billion pound stock, the 120 billion pound portion maturing in 2049 or later will be held permanently.

Under the same decision, 222 billion pounds will be redeemed at maturity by 2034, while 146 billion pounds maturing between 2035 and 2049 will be sold into the market. Active sales will run at 20 billion pounds a year, with average total runoff of 46 billion pounds. Sales were paused for six months. According to MPA Mag, the 30-year yield fell by up to 12 basis points on the day of the decision.

The relief lasted two weeks. According to Serrari Group, the 30-year yield rose intraday to 6.029% on 1 October and the 10-year yield to 5.51%. These were the highest levels since January 1998 and July 2007 respectively. Trading Economics data show the 30-year yield easing to 5.91% and the 10-year to 5.38% on 2 October. Prices falling again in a market the seller has left suggests the constraint is on the demand side, not the supply side.

The main buyer was pension funds, and they are retreating

The traditional buyers of extended-maturity gilts were defined benefit pension schemes, which promise retirees fixed payments. These funds matched their liabilities with 30- to 50-year bonds. The DMO's 2026–27 Debt Management Report, published on 3 March 2026, drew on market feedback. It said domestic pension fund demand for extended-maturity gilts would decline over the medium term.

The same report says some pension fund participants reported that demand for index-linked gilts had also fallen recently. The natural buyers of the DMO's two most extended-maturity products are therefore weakening at the same time. The report gives no numerical breakdown of why, or how fast, the funds are cutting this demand; this point could not be verified. Judging by the 6.029% yield on 1 October, investors stepping into the gap want a higher premium.

Demand has not vanished; it is expensive. According to AJ Bell, the DMO drew 87 billion pounds of bids for a 4.25 billion pound sale of a 2056 gilt on 8 September. The sale cleared at 5.8168%, the highest 30-year rate in the DMO's history. There are buyers, then, but those filling the space vacated by pension funds demand a higher yield.

The Treasury's answer is to cut maturities

The DMO is adapting to this shift in demand through the mix of its issuance. Of the 252.1 billion pounds in the 2026–27 programme, 97.3 billion goes to near-term gilts (38.6%) and 77.8 billion to medium-term gilts (30.9%). Only 23.0 billion goes to extended-maturity conventional gilts (9.1%). Index-linked issuance stands at 23.5 billion pounds, and 30.5 billion pounds is yet to be allocated.

According to a NIESR analysis dated 6 March 2026, extended-maturity gilts made up about 30% of annual issuance ten years ago and index-linked gilts about 25%. Today both are down to roughly 10%. The average maturity of the debt stock has fallen from 16.5 years a decade ago to 13.4 years at the end of 2025. The 2.9 trillion pound stock now reprices more often.

NIESR estimates that this choice saves about 0.5 billion pounds a year. The same analysis puts the term premium on the 10-year gilt at about 100 basis points; this is the extra yield investors demand for locking in over an extended horizon. The saving lowers today's interest bill, but it pushes refinancing risk into the future.

The cost is tied to monetary policy

The larger the share of near-term debt, the faster interest costs respond to the BoE's policy rate. The BoE held its rate at 3.75% on 17 September, but three of its nine members wanted a rise to 4%. According to Trading Economics, the market is pricing about 30 basis points of hikes by year-end and about 90 basis points by end-2027. UK inflation was 3.1% in August.

In this setting, every BoE hike enlarges the Treasury's interest bill faster than before. This link between fiscal and monetary policy is therefore in place before the 28 October budget and the 5 November rate decision. The high cost at the far end, meanwhile, reached households within days.

According to Mortgage Solutions, Barclays raised a two-year, 75% loan-to-value remortgage product from 5.34% to 5.55% on 1 October. TSB raised some products by up to 0.3 points, and Halifax announced increases of 0.10–0.15 points effective from 2 October. The speed of the mortgage channel makes the BoE's choice between inflation and growth harder.

What to watch until 28 October

The first test is the 28 October budget and the DMO programme that will be updated with it. A cut in the extended-maturity share below 9.1% would show the Treasury treats the shrinking buyer base as permanent. A 30-year yield closing above 6% would mean the budget's credibility is questioned from day one.

The second test is the far end of the curve globally. According to Yahoo Finance, the US 30-year yield eased to 5.57% on 2 October; German and Japanese 30-year yields were 3.82% and 4.21% the same day. While gilt selling moves with these markets, Britain's own measures will have limited effect. For Türkiye the channel is indirect: persistently high yields at the G7 far end lift the floor under emerging markets' external borrowing costs.