Reading implied RPI across the index-linked gilts

Each index-linked gilt carries its own implied RPI, and the report for 9 June 2026 shows how far those figures sit apart — a shortest-dated breakeven well above the longest — without any claim that an inflation release happened that day.

One figure per gilt, not one for the market

An implied RPI is the annual inflation an index-linked gilt's real and nominal yields together imply over its remaining life. It is not a single market number: each linker has its own, because each is built from the nominal and real yields at that gilt's own term. On any given day the figures across the linkers can sit in a spread, and the shape of that spread — which maturities imply more inflation and which less — is itself information, separate from the level.

On 9 June 2026 the stored report carried an implied RPI for each index-linked gilt it priced. Across thirty-four linkers the average was 337 basis points, the shortest-dated was 424 and the longest-dated was 326. The shortest-dated figure sits far above the average and the longest sits a little below it, so on this day the market implied more near-term inflation than long-term inflation. That is a description of one date's pricing, not a forecast and not a claim that any index release happened that day.

The spread on 9 June 2026

Read the three figures together rather than the average alone. A shortest-dated breakeven of 424 basis points against a longest-dated of 326 is a gap of almost a full percentage point between the two ends of the index-linked curve, and an average of 337 sits close to the long end because most linkers are long-dated. A reader who looked only at the average would miss the near-term figure entirely, and it is the near-term figure that says what the market is pricing over the next few years.

What the conventional gilts did on the same day

The same report puts the day in a second frame. Conventional yields fell across the whole list — seventy gilts down and none up — and by a few basis points at each term. The nearest conventional gilt to two years' maturity was 4.117%, down 2.1 basis points; the nearest to thirty years' was 5.623%, down 2.0. A small, broad fall in nominal yields with the implied RPI figures held in their spread means the day's move was mostly in real yields rather than in inflation pricing.

Reading a shift across the linkers

Two readings are worth keeping apart. The first is the level of any one linker's implied RPI, which moves whenever its nominal or real yield moves. The second is the spread between the short-dated and long-dated figures, which says how the market's inflation pricing is shaped across time. On 9 June 2026 the spread was wide and the shape was downward-sloping — high at the short end, lower at the long — which is a common shape but not a fixed one, and a later report can narrow it or invert it without any index release at all.

The index-linked gilts page carries each linker's implied RPI and real yield, so the spread can be read gilt by gilt rather than only as three summary figures. The implied RPI curve page shows the same information as a curve across maturities, which is the clearer view when the question is the shape rather than the level.

• Read the spread, not only the average, when the question is the shape of inflation pricing.
• Keep the level of one linker's implied RPI apart from the spread across many.
• Remember an implied figure is derived from two prices and is not a forecast.
• Treat the day's shape as one date's pricing, which the next report can change.

Background, not advice

This note reads one stored report and explains how implied RPI is shaped across the index-linked gilts; it is general background, not investment advice for any reader's circumstances, and it makes no claim about any inflation release on or near 9 June 2026. The figures are those the report for that date published and say nothing about the next. The primary source for an implied figure or a real yield is the day's report and the curve pages that fit it.