The short end barely moved while the rest repriced

The report for 12 May 2026 records a day on which the nearest gilts to two years' maturity hardly moved while the rest of the list rose together, so the gilts that barely moved are the short ones and the movement was a steepening of the curve.

What the day's report recorded

The stored report for 12 May 2026 records a broad move higher in yields — but not an even one. The nearest conventional gilt to two years' maturity stood at a gross redemption yield of 4.303%, up only 0.8 basis points on the previous report, while the nearest to five, ten and thirty years' maturity rose by 8.3, 9.4 and 8.4 basis points respectively. Every conventional gilt the report priced moved up — seventy rose and none fell — so the direction was universal, but the size was not: the short end was almost static and the rest of the curve carried the move.

A steepening, not a parallel shift

When the short end holds and the long end rises, the gap between them widens and the curve steepens. On 12 May 2026 the two-year point moved less than a basis point while the ten-year rose more than nine, so the spread between the two ends opened by roughly eight basis points in a single session. The site's gilt yield curve shows this directly: each priced gilt plotted against a curve fitted to the same day, with the short maturities sitting near where they were and the long maturities lifted away from the line they had followed a day earlier.

This is why "the gilts that barely moved" on this day were the short ones. A reader looking for the quiet part of the list would find it at the front of the curve, among the gilts nearest to maturity, not spread across the whole list. The whole-list summary — seventy up, none down — is true but hides that the movement was concentrated in the middle and the far end.

The three biggest movers sat at the long end

The movers list confirms it. The biggest yield rises on 12 May 2026 were at long maturities: the 4⅜% Treasury Gilt 2040 rose 10.0 basis points, the 4¼% Treasury Gilt 2039 rose 9.9, and the 1¾% Treasury Gilt 2037 rose 9.8. Long gilts carry the most modified duration, so a yield move of this size translates into a larger price fall than the same move would on a short gilt. The list is worth reading in that light: on a day the long end carries the move, the big movers will almost always be the long-dated ones, and that is arithmetic rather than a surprise.

A rising yield means a falling price. On this day the long-dated gilts in the movers list got cheaper, and a reader who read the change column as a price move would have the sign backwards.

What a steepening day means for a reader

A steepening session changes the shape of what the market offers rather than its overall level: the reward for lending further out widened, while the reward at the short end held. Read against the day's implied breakeven — an average of 352 basis points across the index-linked gilts on 12 May 2026 — the nominal move looks like a repricing of nominal duration rather than a sudden change in inflation pricing. It is one session's measurement, and the next report can undo it.

• Read the two ends separately: a flat short end beside a rising long end is a steepening, not a parallel shift.
• Look for the gilts that barely moved at the front of the curve on a day like this one.
• Check the movers against their maturity before reading anything into their size.
• Treat a single session's steepening as a measurement, not a forecast of the curve's direction.

Background, not advice

This note reads one stored report; it is general background, not investment advice for any reader's circumstances. The figures are those the report for 12 May 2026 recorded and say nothing about the next session, and the shape of the curve on one day is a past measurement rather than a guide to what follows. The primary source for a real yield or change is the day's report and the curve that fits it.