Scan: Bank of England rate hike in 2026?

1. Planner Fable 5.1 · Fermi decomposition + tool plan

Tools chosen: polymarket_direct polymarket_related kalshi_related fred article_search claude_news code_execution

Sub-questions (Fermi decomposition)

What is the current Bank Rate and what path do SONIA/OIS markets imply for the Bank Rate through December 2026 (any hikes priced)?
What is the latest UK CPI and services inflation, and does the BoE's own forecast show inflation returning to 2% in 2026 or re-accelerating?
What was the vote split and forward guidance at the most recent MPC meetings, and has any MPC member publicly floated hikes or argued the easing cycle is over?
Historically, how often has the BoE (or peer central banks) reversed from cutting to hiking within 12-24 months of the last cut, and what triggered those reversals?
Are there identifiable shocks in the pipeline (energy prices, sterling depreciation, fiscal expansion, wage growth, tariffs) that could force a 2026 hike?
How do Kalshi's BoE decision markets and other Polymarket BoE markets price cuts vs. holds vs. hikes for 2026 meetings?

Planner reasoning

The BoE has been in an easing cycle from 5.25% since Aug 2024; a hike in 2026 would require a sharp inflation re-acceleration or a policy reversal, which is historically rare within ~2 years of a cutting cycle ending. Key drivers are current UK inflation trajectory, MPC guidance/dissent, market-implied rate path (SONIA/OIS), and fiscal/energy shocks. Anchor on the Polymarket price, triangulate with Kalshi BoE markets, and pull UK CPI/Bank Rate data via FRED.

2. Research Parallel tool calls

tool	status	time	items	summary
polymarket_direct	OK	0.5s	1	## This Market's Polymarket Data Bank of England rate hike in 2026? - Current price (probability): 54.50% - 7-day price change: +25.00% - 30-day price change: +27.00% - Total volume: $51,368 (USD notional) - Price range: 16.50% - 71.50% - Data points: 90 days
polymarket_related	OK	0.2s	0	Scanned 100 active Polymarket markets, kept 0 matches. keyword 'Bank of England': 0 markets \| keyword 'BoE rate': 0 markets \| keyword 'UK interest rate': 0 markets
kalshi_related	OK	1.2s	1	1 related markets / summaries. series KXBOE: 0 markets (skipped 0 no-signal) \| series KXCBDECISION: 0 markets (skipped 0 no-signal) \| keyword 'Bank of England': ok \| keyword 'BoE': no matches
fred	OK	2.9s	6	Fetched 6 FRED series (lookback=730d) (via search 'United Kingdom Bank Rate').
article_search	OK	1.6s	29	Fetched 29 unique articles across 4 queries (lookback=45d). 'Bank of England MPC decision Bank Rate vote split': 10 articles \| 'UK inflation CPI Bank of England forecast 2026': 10 articles \| 'Bank of England rate hike risk gilt yields SONIA pricing': 10 articles \| 'Bank of England easing cycle end B
claude_news	OK	18.8s	16	Bank of England 2026 rate hike research findings: - Latest MPC decision: At the meeting ending 17 June 2026, the MPC voted by a majority of 7–2 to maintain Bank Rate at 3.75%, with two members voting to increase Bank Rate by 0.25 percentage points, to 4% . Source: bankofengland.co.uk - **
code_execution	OK	95.5s	0	## Base Rate Analysis: BoE Hikes Following Easing Cycles (1975–2024) Historical cycle-timing statistics (10 completed easing cycles identified from major BoE Bank Rate turning points, 1983–2024; the 2024–25 easing cycle is still ongoing and excluded from the base): - **Hike within 12–24 months

3. Evidence Brief Sonnet 5 · 6065 chars

# Current state The Bank of England cut Bank Rate to 3.75% on 18 Dec 2025, ending a cutting cycle from 5.25%. It has held at 3.75% at the June and July 2026 meetings amid a Middle East-driven energy shock, with an increasingly hawkish minority (2, then 3 members) voting for a 25bp hike. Resolution requires an actual increase in Bank Rate at any 2026 meeting (next: Sept 17, 2026); a hold-only year resolves "No." # Timeline of key events - 2025-12-18: BoE cuts Bank Rate 4.00%→3.75%, capping the 2024-25 easing cycle (confirmed, BoE). - 2026-04: April Monetary Policy Report sharply revises up near-term CPI path (2.0%→3.3% by Q3) on Middle East energy shock; vote 8-1 hold (confirmed, BoE/Commons Library). - 2026-06-17: MPC holds 3.75%, vote 7-2 (2 for +25bp hike) (confirmed, BoE). - 2026-07-30: MPC holds 3.75%, vote 6-3 (Greene, Mann, Pill dissent for hike); July MPR shows CPI projected to peak ~3.2% in Q4 2026 (confirmed, BoE/CNBC). - 2026-07: UK CPI rises to 2.9% (from 2.6% June) — first increase since March 2026 (confirmed, ONS via britsavvy). - 2026-08-13/18: Reuters poll of 64 economists — 90% expect hold through year-end (reported, HoA). - 2026-09-17: Next MPC decision — framed as pivotal test of whether hawkish dissent reaches a majority (upcoming/analyst framing, britsavvy). # Event Will the BoE raise Bank Rate at any point between market creation and Dec 31, 2026? # Outcomes to forecast Yes / No # Kalshi market anchor No kalshi_direct data was returned for this ticker (gap). Best available cross-market proxy: Polymarket's identically-named market prices YES at 54.5%, up sharply from a 16.5% low over the 90-day window (+25% 7d, +27% 30d), on $51k volume — reflecting rapid repricing toward "hike" as hawkish dissent has grown. Treat with caution as a Polymarket, not Kalshi, read. # Sub-question answers 1. **SONIA/OIS path**: SONIA sits ~3.73% (Sept 2026), essentially at the current 3.75% Bank Rate, implying markets see little near-term move either way; a Normal-distribution translation of OIS scenarios gives model-implied hike probabilities of only ~5-20% depending on assumed easing bias (code_execution). 2. **Inflation/BoE forecast**: July CPI rose to 2.9% (from 2.6%), first increase since March; BoE's own July MPR sees inflation peaking near 3.2% in Q4 2026, not returning to 2% target within the window — an explicit upside-risk forecast (BoE, CNBC, britsavvy). 3. **Vote splits**: Hawkish dissent has grown three meetings running — April 8-1, June 7-2, July 6-3 (Greene, Mann, Pill dissenting for +25bp) — but the majority still favors holding (BoE, CNBC, cambridgecurrencies). 4. **Historical base rates**: Across 10 BoE easing cycles (1983-2024), a hike occurred within 12-24 months of the final cut in 60% of cases, and within 24 months in 90% of cases (only the 2009-2017 ZIRP era was an outlier) (code_execution). 5. **Pipeline shocks**: Middle East energy chokepoint/Red Sea disruption and AI-hardware supply constraints are the named upside risks by hawkish MPC members (Greene); wage/second-round effects also flagged. No sterling-depreciation or tariff shock specifically documented (CNBC). 6. **Other rate markets**: No BoE-specific Kalshi decision markets or additional Polymarket BoE markets were found (kalshi_related and polymarket_related both returned zero relevant matches); this aggregate "2026 hike" market appears to be the only tracked instrument. # Key facts (high-confidence, factual) 1. [BoE] Bank Rate cut to 3.75% on 18 Dec 2025; held at 3.75% through June and July 2026. 2. [BoE/CNBC] July 2026 vote: 6-3 hold, with 3 dissents favoring a 25bp hike to 4.00%. 3. [britsavvy/ONS] UK CPI: 2.9% in July 2026, up from 2.6% in June — first rise since March. 4. [BoE] July MPR central projection: CPI peaking ~3.2% in Q4 2026. 5. [HoA/Reuters poll] 56 of 64 economists (~90%) expect Bank Rate held at 3.75% for rest of 2026. 6. [FRED] SONIA ~3.73% as of Sept 2026, close to current Bank Rate. 7. [code_execution] Historical BoE cycle-reversal rate: 60% hike within 12-24mo of last cut; 90% within 24mo (ex-ZIRP outlier). # Cross-market signals - Kalshi related: No BoE-specific decision markets found; unrelated Fed/stadium markets surfaced only. - Polymarket: This exact market (proxy) at 54.5% YES, sharp +25-27% momentum over 7d/30d — likely reflects rising hawkish dissent narrative rather than confirmed hike. - Sportsbook implied: None available. # Analyst opinions and speculation - Reuters poll consensus: hold expected through 2026 (economists skew dovish/neutral). - IMF (contrarian): argues BoE should be ready to cut, not hike, despite hawkish market chatter (CNBC). - Cambridgecurrencies/britsavvy: highlight a "growing hawkish minority" trend (8-1→7-2→6-3) and flag Sept 17 as the meeting where two vote-switchers could produce a 5-4 hike majority — speculative framing, not fact. # Directional lean per outcome - **Yes**: Rising CPI (2.9%, forecast peak 3.2% Q4), growing hawkish MPC dissent (now 3 members), historical base rates (60-90% hike-within-cycle precedent), Polymarket momentum to 54.5%. - **No**: Majority MPC still votes hold (6-3, 7-2, 8-1 all holds), 90% of polled economists expect hold, SONIA/OIS pricing near current rate (not pricing hike), IMF explicitly argues against hiking, model-implied OIS-based hike probability only 5-20%. # Gaps / unknowns - No direct Kalshi YES price retrieved — reliance on Polymarket proxy is a material gap. - Outcome of Sept/Nov/Dec 2026 MPC meetings unknown; whether hawkish dissent flips majority is the crux, undetermined by current data. - No sterling/fiscal/tariff-specific shock data found despite being a planner sub-question. # Calibration anchors - Polymarket proxy YES price: 54.5% (up sharply from 16.5% low; treat as noisy, momentum-driven). - Historical precedent: 60% (12-24mo window) to 90% (24mo window) of past easing cycles saw a subsequent hike, but current MPC vote structure (majority still hold) and OIS pricing argue for a materially lower probability than the historical base rate this specific year.

4. Forecasters Fable 5.1 + GPT-5.6 Sol · in parallel

claude-fable-5-1

44% conf

Yes	33%
No	67%

No Kalshi price exists; the Polymarket proxy at 54.5% is thin ($51k) and momentum-driven, while deeper signals lean against a hike: SONIA/OIS pricing sits at ~3.73% implying only ~5-20% model-implied hike odds, and 90% of Reuters-polled economists expect a hold through year-end. The hawkish case is real — CPI rose to 2.9% with the BoE's own MPR peaking at 3.2% in Q4, and dissent has grown 8-1→7-2→6-3 — but flipping two more members (including a Governor-led core that has consistently looked through energy supply shocks) across just three remaining meetings is a high bar, and the IMF is explicitly arguing against hikes. Historical base rates (60% hike within 12-24 months of last cut) are a longer-horizon tailwind that only partially applies to this calendar-year window. I land materially above the OIS-implied odds but well below the Polymarket proxy at roughly one-in-three.

gpt-5.6-sol

68% conf

Yes	28%
No	72%

The 54.5% Polymarket YES proxy is the market anchor, but it appears momentum-driven and conflicts with SONIA/OIS, which implies only about a 5–20% hike probability. Inflation at 2.9% with a projected 3.2% peak and the progression from 8-1 to 6-3 votes point toward Yes, as do energy, supply-chain, and wage risks. However, the MPC majority still supports holding, 56 of 64 Reuters-polled economists expect no 2026 move, and no corroborating BoE rate market was found, all pointing toward No. Historical cycle reversals make a hike plausible, but they cover longer 12–24-month windows and therefore provide limited support for a hike during the few remaining 2026 meetings.

5. Devil's Advocate Sonnet 5 · red-team critique

Both forecasts treat the Polymarket 54.5% and OIS-implied 5-20% as merely "priced against each other" without reconciling the large divergence; neither explains why a liquid rates market (OIS) and a thin prediction market ($51k) should be weighted so differently, beyond asserting the latter is "momentum-driven" — this is asserted, not demonstrated.

Neither forecast explicitly models the compounding effect of three remaining chances to hike (Sept, Nov, Dec) as roughly independent draws; if per-meeting hike probability is modest but non-trivial, the cumulative "any meeting" probability should be meaningfully higher than a single-meeting estimate, which both forecasts seem to be implicitly using.

The vote-split trend (8-1→7-2→6-3) is monotonically accelerating by exactly one dissenter per meeting; neither forecaster extrapolates this arithmetic trend forward (which would put Sept at 5-4, a plausible majority flip) as an explicit scenario, instead treating "flipping two more members" as a vague "high bar."

Both anchor heavily on the Reuters poll (90% hold) and IMF dovish stance as corroborating "No," but neither notes that economist surveys have a poor track record of anticipating turning points precisely because they lag realized inflation surprises like the July 2.6%→2.9% jump — this is a potential reference-class error treating survey consensus as near-ground-truth.

Neither forecast addresses the pipeline-shock sub-question (Middle East energy chokepoint escalation risk, AI-hardware supply constraints) as a source of tail-risk that could force a faster hawkish pivot than the gradual vote-trend suggests, effectively underweighting a scenario where inflation data surprises further upside before Sept 17.

The two forecasts (0.33 and 0.28) are very close and both sit well below the Polymarket anchor (54.5%) without much dispersion in reasoning — this convergence could reflect shared anchoring bias toward OIS/survey data rather than independent evidence weighting, especially given the Kalshi price itself is unavailable and the Polymarket proxy should be discounted but not this heavily.

6. Aggregator Fable 5.1 · final calibrated forecast

34% (56% confidence)

Yes: 34% No: 66%

No Kalshi price exists, and the two anchors conflict sharply: a thin, momentum-driven Polymarket proxy at 54.5% versus deep, liquid SONIA/OIS pricing near 3.73% (model-implied hike odds ~5-20%) and a 90% economist consensus for hold — the liquid rates market deserves the heavier weight. The hawkish case is genuine (CPI 2.9% rising toward a 3.2% Q4 peak, dissent accelerating 8-1→7-2→6-3, three remaining meetings, energy-shock tail risk), and the critique is right that a 5-4 flip in September is a concrete scenario rather than a vague high bar, which argues for sitting well above OIS-implied odds. But the two swing votes must come from the Governor-led core (Bailey, Breeden, Lombardelli, Ramsden) that has consistently looked through supply shocks, and the IMF is explicitly counseling against hikes. I land at roughly one-in-three, modestly above both forecasters to reflect the compounding of three meetings and the vote-trend momentum, but far below the noisy Polymarket read.

Pipeline Timing

Total pipeline time: 226.8s

Per-tool research timings shown in the Research section above.