UK Gilt Yields Rise as Starmer Speech Fails to Calm Investor Jitters

The Lead

UK gilt yields have crept higher as Keir Starmer's crucial speech failed to dispel investor "jitters" in the bond markets over political instability combined with fears of rising inflation.

Starmer's Speech and Market Reaction

The yield, effectively the interest rate, on the benchmark 10-year UK government bonds (known as gilts) rose eight basis points (or 0.08 of a percentage point) to 5% on Monday. The yield on 30-year gilts rose 9.3 basis points to 5.67%, edging closer to the 28-year high of 5.78% last week when uncertainty about Starmer's future as prime minister was intensifying.

Economic Impact of Rising Yields

Borrowing costs fell on Friday as the results of the elections emerged with signs that Labour had not suffered as badly as first feared. Those falls, however, were more than erased by Monday's rises. Susannah Streeter, the chief investment strategist at Wealth Club, a non-advisory investment service, said the speech had not "done the trick of calming bond markets".

Investor Concerns and Future Outlook

There is still a sense of jitters playing out as concerns about political instability collide with inflationary fears prompted by the ongoing conflict in the Middle East. Bond yields move in the opposite direction to bond prices because investors want to pay less and get a bigger reward for the risk of holding them. Higher yields increase the cost of borrowing for the government and eat away at the headroom that the chancellor, Rachel Reeves, has built up against her fiscal rules.