London's blue-chip index closed 25.27 points lower at 10,679.99 on Thursday, a fall of 0.24 per cent, but the headline number hides the more useful one. The domestically focused FTSE 250 fell 0.85 per cent to 24,154.32 and the AIM All-Share shed 1.1 per cent, while the ten-year gilt yield touched 5.38 per cent, a level last seen in July 2007. The index that earns most of its money overseas held up roughly three and a half times better than the index that earns most of its money at home.
The close, in the numbers
Energy did the heavy lifting. BP rose 2.6 per cent and Shell 1.7 per cent as Brent climbed more than 4 per cent to about $107.88 a barrel, with Ithaca Energy up 2 per cent. Rate-sensitive names went the other way. Life insurers and asset managers led the fallers, with Standard Life down 4.2 per cent and Computacenter 4.4 per cent lower as both traded ex-dividend, a mechanical drag that has nothing to do with gilts but landed on the same screen. St James's Place, a bond-proxy name, lost ground too. Banks fell: HSBC 0.8 per cent lower, Barclays and Lloyds around 0.5 per cent each. Industrials and defence, with Rolls-Royce down 1.3 per cent and BAE Systems 1.5 per cent, and miners, Rio Tinto off 1.7 per cent, took away most of the remaining points.
The clearest single-stock expression of the yield move was Vistry. The housebuilder closed 3.1 per cent lower after swinging to a £661.3m first-half pretax loss against a £40.9m profit a year earlier, cutting full-year profit guidance and setting out a £470m hit from an overhaul that shrinks the business towards about 12,000 completions a year. Vistry pointed to tougher open-market conditions over the summer, lower customer confidence and affordability constraints. A builder with a thinner order book is one of the first places a higher discount rate shows up.
Why the gilt sets the price of everything else
High bond yields normally create headwinds for equities. High yields make bonds more competitive against shares, reduce the present value of future profits, can lead to a rise in corporate borrowing costs, and they can push up mortgage rates.
That last clause is where the gilt market stops being an abstraction for UK households, and it is where the current move has a domestic leg as well as a global one. The Bank of England's Clare Lombardelli told a conference in Warsaw that the longer higher energy prices persist, the greater the risk that inflation expectations and price-setting behaviour adjust, and that policy is increasingly likely to need to tighten if elevated energy prices persist absent clear evidence of disinflation or weaker activity. Traders now fully price at least one quarter-point Bank Rate rise this year, according to LSEG data compiled by Reuters. Bank Rate has sat at 3.75 per cent since the Bank held last week.
What the street already has in the number
Two things are paid for. The first is the Budget. The Financial Times reported that chancellor John Healey may accept a smaller fiscal buffer to avoid deeper tax rises, with gilt investors signalling they would not be spooked by a more modest headroom target. Guardian reporting has the £24bn of headroom left in March more than half gone after the recent yield moves. The second is the tightening itself: one hike this year is fully priced rather than debated. Andy Burnham's government has promised breathing space on the cost of living; a market pricing higher rates is the opposite of that promise, which is why 28 October carries more weight than most first Budgets.
There is also a UK-specific discount to price. The Independent reported the gilt move was the fastest among G7 sovereigns between Tuesday and Wednesday, with Handelsbanken's Daniel Mahoney calling the yield level one last seen in the global financial crisis and noting UK borrowing costs remain notably higher than G7 counterparts, while describing the recent drivers as broadly international. On the same day, US ten-year Treasury yields were quoted at 5.11 per cent and 30-year yields at 5.45 per cent, the highest since 2004. If the driver is global, the UK move is a spread story with a Budget overlay, not an isolated fiscal accident.
What would falsify it by Friday's close
Three checks. First, whether the FTSE 250 keeps losing more than the FTSE 100: if the midcap stops underperforming, the rate-sensitivity read is wrong and Thursday's close was mostly an oil tape. Second, whether ten-year gilt yields hold below last week's 19-year high; a clean move back under 5.30 per cent with no new Budget headlines would say the market has swallowed the thinner buffer. Third, oil. Brent above $100 cushioned the index through BP and Shell and it is the same input keeping inflation risk alive. If crude retreats towards $95, the cushion goes and the FTSE 100 loses its hedge against its own domestic problem.
For the desk, the story is not that the FTSE 100 fell 0.24 per cent. It is that the gap between the export index and the domestic index is being set by a bond market pricing a year-end rate rise and a Budget five weeks away, with Vistry as the earliest casualty of the second-order effect.