In November last year, UK CPI hit a new 40-year high of 11.1%. To address inflation, the Bank of England has raised interest rates 12 times in a row (from 0.1% to 4.5%). In April, CPI fell to 8.7%, but the decline was still less than expected.
Especially, UK core CPI rose instead of falling, from 5.8% in January to 6.8% in April, reaching its highest level since 1992.

【Source:MacroMicro】
The unexpected increase in core inflation implies that the Bank of England (BOE) will have to continue raising interest rates. Currently, the market expects at least three 25 basis point rate hikes from the BOE this year, which is more aggressive than the Federal Reserve's rate hiking process. The interest rate differential between the UK and the US will widen further in the future, providing support for continued strength in the GBP/USD exchange rate in the second half of the year.
However, it should be noted that in the context of rising inflation and interest rates, the sharp increase in living costs for British people may weaken their consumption ability and thus drag on economic growth. If there are signs of weakness in the British economy in the second half of the year, it will limit the appreciation of the pound.