Was that move shared?

Three yields, one day.

If US and euro yields jumped by a similar amount, a global explanation fits the numbers. If only gilts jumped, it does not. This page does not say a speaker was fair or unfair. It shows the arithmetic.

The part not shared, over time

Each bar on a chosen day is the raw change. The line here adds up, over the previous 20 business days, the gilt move minus the average of the US and euro moves. A single day is too narrow to see on a ten-year chart. Zero means gilts matched the other two markets over that month. The hill in autumn 2022 is the mini-budget.