Bond investors do not need a vision statement. They need arithmetic. When John Healey stands up in the Commons on Wednesday 28 October to deliver the first Budget of Andy Burnham’s government, the question every fixed-income desk in London will be running is simple: does the fiscal headroom the Office for Budget Responsibility publishes hold up under honest assumptions?
The 10-year gilt sat near 5.4% in the days before the Budget, after touching about 5.53% on 8 October, a level last seen in July 2007. That is the market’s opening bid. A severe global bond selloff briefly pushed the 30-year gilt yield above 6% in early October, eroding the fiscal buffer that stood at £24 billion in March; economists have put the remaining headroom in a wide range as higher borrowing costs raise the debt interest bill. Whatever figure the OBR puts on it tomorrow sets the terms of the trade.
Four years after the bond market turmoil under Liz Truss, British gilt yields remain elevated by recent standards. Healey arrives in that context carrying a constraint his predecessor helped build: while ministers have ruled out increases to the main rates of income tax, VAT and employee national insurance, the government has also committed to capping the main rate of corporation tax at 25%. Together, income tax, National Insurance contributions and VAT account for roughly three-fifths of government receipts, so the government’s largest revenue levers are effectively off the table.
That leaves a narrower range of moves. The Chancellor is reportedly considering increasing the surcharge on bank profits from 3% to 8%, reversing a tax cut for the sector launched by former Chancellor Jeremy Hunt. Putting the surcharge back to 8% would push the combined headline rate on bank profits to 33%, and the Treasury would, on paper, collect around £2 billion a year more. The Trades Union Congress estimates the hike would raise £2.25 billion a year, though City representatives have claimed it will stifle investment. Two billion pounds sounds decisive; against a fiscal gap measured in tens of billions, it is a gesture.
Aberdeen Investments fixed income director Luke Hickmore has argued that Healey’s stated commitment to fiscal discipline is what the gilt market will hold him to, and that adhering to the plan could leave room for yields to fall, while surprising the market could bring swift consequences. That is the asymmetry bond desks are pricing. A credible headroom figure alongside a believable consolidation path probably produces a modest gilt rally. A headroom number that looks engineered, or a spending profile that depends on optimistic growth assumptions, likely does the opposite.
Gilt yields will be closely watched, and sterling’s reaction will depend on whether yield movements are growth-driven, which would be GBP positive, or risk-driven, which would be GBP negative. That distinction matters for how UK bank equity trades into the close tomorrow. Shares of HSBC, NatWest, Lloyds and Barclays have been down sharply at points this month as budget jitters hit the sector. A bank surcharge increase at the top of current estimates would keep pressure on all four.
The UK is not the only sovereign bond market where a budget’s credibility is being priced in real time. France’s OAT spread has become the live referendum on whether a government without a parliamentary majority can hold its fiscal consolidation path.
Healey is expected to prioritise stability in the bond market over the kind of big spending moves that Andy Burnham talked about when he became prime minister. Analysts have described this Budget as a stopgap, deferring harder choices to a future spending review. That may be the politically safe read. For gilt markets, a stopgap Budget that protects headroom is preferable to an ambitious one that burns it. The credibility test is not whether Healey says the right things. It is whether the OBR’s numbers survive contact with the bond market by Thursday morning.
Stocks to Watch
- NatWest (NWG): Most exposed domestically to a bank surcharge increase; any rise toward 8% hits earnings estimates that the market has not fully discounted at current levels.
- Lloyds (LLOY): Retail-focused franchise limits international hedging options. A credibility-driven gilt rally would help mortgage volumes; a risk-off move in gilts would do the opposite.
- Barclays (BARC): Investment banking revenue provides a partial offset to UK tax pressure, but the shares have already moved lower with the sector and leave little room for further negative surprises.
- HSBC (HSBA): International earnings provide the most insulation of the four. If sterling weakens on a risk-driven yield move, HSBA is the relative beneficiary inside UK-listed banks.
