Gilts: Iran Shock Kills the Rate-Cut Dream

The shift in BoE expectations has been extraordinary. In February, futures priced two 25bp cuts by year-end, with Bank Rate reaching 3.25% by early 2027. By mid-March, after oil breached $100, markets had abandoned cuts entirely. By mid-April, with oil backing off toward $95 and the April 14 PPI print soft, swap curves price fewer than two rate increases in 2026 — not cuts, hikes that may never come.

The March 19 vote tells the story. Sarah Breeden and Swati Dhingra — the MPC's most dovish members — abandoned their rate-cut stance in a single meeting. That shift doesn't happen unless the Committee sees a fundamentally different inflation landscape. The BoE's own projections put CPI between 3.0% and 3.5% through mid-2026, with upside risks if energy costs persist.

BoE officials have signalled no urgency to hike ahead of the April 30 MPC meeting. That matters. A Committee that was unanimously on hold in March and reluctant to move in either direction in April is a Committee that expects to sit at 3.75% through the summer. The market has read the signal — gilts haven't collapsed further, but they haven't rallied meaningfully either.

The Fed funds rate at 3.64% now sits below the BoE's 3.75%. The Fed cut seven times from 4.33% since mid-2025; the BoE managed four. The divergence widens from here. The Fed can hold and wait. The BoE cannot — every penny of the wholesale gas price flows into Ofgem's quarterly cap with a one-to-two quarter lag.

Some forecasters still discuss what was unthinkable in January: a rate hike if CPI reaccelerates above 4%. With Brent at $95 rather than $111, that's less likely than it looked on April 3. But the short end of the gilt curve still prices the option — which is why the 2-year won't retrace toward 4% until the MPC actively signals cuts.

Oil at $95 still hits UK bonds harder than US Treasuries (see Gilts: Stagflation Risks) through three channels.

First, direct energy costs. The UK imports 40% of its gas. Every price increase transmits to household bills through Ofgem's cap with a one-to-two quarter lag. The April 14 PPI print was the first genuine disinflation datapoint of 2026 — but pipeline pass-through from Q1's oil spike hasn't finished working through UK retail energy yet. That feeds into services inflation — restaurants, care homes, transport — the stickiest CPI component.

Second, the exchange rate. Sterling weakens when energy prices spike because the UK's trade balance deteriorates. A weaker pound imports additional inflation on everything from food to manufactured goods. The Monday vessel seizure is exactly the kind of event that moves cable 1% in a session.

Third, fiscal knock-on. Higher energy costs increase government spending (benefits, heating support) while reducing tax revenue through weaker consumer spending. Index-linked gilts — roughly a quarter of UK government debt — see their servicing costs rise mechanically with RPI. The UK's fiscal position was already under pressure from the April 6 benefit and pension increases.

The Strait of Hormuz remains the wildcard. Iran briefly declared it "completely open" on Friday, then reversed by Saturday. Shipping insurance premiums remain elevated. Any sustained closure would send oil back above $110 and gilts into genuine crisis territory.

The rate-cutting cycle is dead. Gilt investors must reposition for a hold-or-hike environment that could persist through the summer — and possibly through year-end.

Short-duration gilts (2-5 years) at roughly 4.30% on the 2-year are the cleanest trade. Lower rate sensitivity, adequate income, and first to benefit if the BoE eventually resumes easing — whenever that is. The risk is modest: you're paid 4.30% to wait.

Long-dated gilts (10+ years) are a binary geopolitical bet. If Iran de-escalates and oil drops below $85, the 10-year could retrace toward 4.3% — generating 45bp+ of capital gains on duration. If Hormuz closes and Brent hits $120, the 10-year breaches 5%. Size this trade as much as you can stomach losing on — no more.

Avoid catching the falling knife on 30-year gilts. The long-end yield is seductive, but duration risk at the long end is extreme. A 25bp move generates roughly 5% price change on a 30-year bond. Wait for either a clear BoE signal or a geopolitical catalyst before extending duration.

The April 30 MPC meeting is the next scheduled catalyst. A dovish tilt — any hint that the Committee sees inflation as more likely to undershoot than overshoot by year-end — would trigger a sharp relief rally and push the 10-year toward 4.5%. Any fresh Iran escalation — a Hormuz closure, a direct strike, a US-Iranian naval clash — would reverse that instantly.