TG46

0 7/8% Treasury Gilt 2046 · GB00BNNGP775
From To
Return
+£1.181

14 Oct 2026 → 13 Nov 2026

Start dirty price
£42.801
model £42.989
End dirty price
£43.982
model £44.122
Mark-to-market is the traded price; mark-to-model discounts the remaining flows along the fitted curve. The decomposition below is computed on the model prices.

What moved the price

Effect Contribution What it is
Carry +£0.218 The passage of time at an unchanged yield: coupons earned plus the bond getting closer to redemption.
Rolldown +£0.014 The yield change that comes from the shorter remaining maturity — rolling down the same curve.
Variation +£0.901 The move in the curve itself between the two dates.
Unexplained +£0.048 The residual between the traded prices and what carry, rolldown and variation account for.

The curve, then and now

Market data as of 14 Oct 2026 and 13 Nov 2026.
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