What if UK mortgage reset squeezes households as cheap fixes roll off?
Millions of UK households roll off ultra-low fixed-rate mortgages onto far higher rates, compressing disposable income and softening home prices; the payment shock dents consumer demand and pressures UK housebuilders and lenders.
how we built this number — every step
The class rate is measured from our dated, sourced event library (decade-normalized Poisson — the full table is public at base_rates.json). The variant’s share within its class is the analyst’s editorial call, published so you can audit it. A wider range means thinner precedent. Full recipe: methodology · scored at Reality Check.
The butterfly cascade
How this trigger trickles across markets, left → right — the root shock, its first‑order moves, then the ripple effects. Drag any node; tap a market for its real price history.
Resolution timeline — how this probability is moving
Our model's odds (gold) over time vs the crowd's (Polymarket, blue), from the past toward the 6–18 months horizon. Each dot is a real macro event that nudged the probability — green pushed it up, red pushed it down. Tap a dot for the source. The gold path is an illustrative reconstruction anchored to today's estimate — real dated events, not a live re-estimate history.
What it would mean
If this plays out, it is a risk-off shock. Millions of UK households roll off ultra-low fixed-rate mortgages onto far higher rates, compressing disposable income and softening home prices; the payment shock dents consumer demand and pressures UK housebuilders and lenders. The trigger decomposes into signed root‑shocks — Consumer spending ▼ · Mortgage rates ▲ · Risk appetite ▼ — which propagate through our causal graph to the markets below.
If it happens — the markets it would move
Biggest moves first. Projected moves are cascade-model priors; hist A–B% = what comparable past events actually did (measured abnormal returns), and model prior · unmeasured marks markets with no analogue backing yet. Tap any market for its price history.
| Market | Class | Projected move | |
|---|---|---|---|
| 1 | Solana SOLon Hyperliquid 📈 chart | Crypto | ▼ -0.5% hist -11.44–+1.46% · other way -1.0% (n=12) |
| 2 | Hyperliquid (HYPE) HYPEon Hyperliquid | Crypto | ▼ -0.4% model prior · unmeasured |
| 3 | MicroStrategy MSTRon Hyperliquid 📈 chart | Equity | ▼ -0.4% hist -1.45–+0.37% · other way +24.57% (n=12) |
| 4 | Ether ETHon Hyperliquid 📈 chart | Crypto | ▼ -0.4% hist -7.82–+2.32% · other way +4.71% (n=12) |
| 5 | Nasdaq 100 NDXon Hyperliquid 📈 chart | Index | ▼ -0.3% hist -0.44–-0.01% · other way -0.29% (n=12) |
| 6 | Homebuilders XHB 📈 chart | Equity | ▼ -0.3% hist -0.51–+0.03% · other way -1.13% (n=12) |
| 7 | Volatility (VIX) VIXon Hyperliquid 📈 chart | Vol | ▲ +0.3% hist -0.7–+0.5% · other way +3.18% (n=12) |
| 8 | Bitcoin BTCon Hyperliquid 📈 chart | Crypto | ▼ -0.2% hist -5.02–+1.67% · other way +5.56% (n=12) |
| 9 | S&P 500 SPXon Hyperliquid 📈 chart | Index | ▼ -0.2% hist -0.35–+0.03% · other way +0.18% (n=12) |
| 10 | Tech sector XLK 📈 chart | Equity | ▼ -0.2% hist -0.22–+0.1% · other way -0.38% (n=12) |
| 11 | Coinbase COINon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -1.17–+0.44% · other way +18.8% (n=12) |
| 12 | Semiconductors SMHon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -0.2–+0.16% · other way +2.4% (n=12) |
Probable recommendation
Historical precedent — what analogous events actually did
Across 40 analogous events (overlap‑weighted), as abnormal returns — market beta stripped, so it's the event's own effect, not the market backdrop. Shown at 20 days (persistent) and 5 days (immediate); ↺ fades = the two horizons disagree. Confidence = consistency × sample × significance.
| Asset | History says | Abnormal (20d · 5d) | Hit | n | Confidence | vs cascade |
|---|---|---|---|---|---|---|
| SOL SOL | SHORT | -9.2% · 5d -7.6% | 75% | 40 | 0.38 | ✓ matches cascade |
| ETH ETH | SHORT | -6.9% · 5d -5.3% | 62% | 40 | 0.19 | ✓ matches cascade |
| NDX NDX | SHORT | -0.2% · 5d -0.9% | 62% | 40 | 0.18 | ✓ matches cascade |
| Bitcoin BTC | SHORT | -4.5% · 5d -3.4% | 60% | 40 | 0.15 | ✓ matches cascade |
| Gold XAU | LONG | +0.2% · 5d -0.3% ↺ fades | 57% | 40 | 0.13 | · |
| MSTR MSTR | SHORT | -1.1% · 5d -3.2% | 55% | 40 | 0.10 | ✓ matches cascade |
| High-yield credit HYG | SHORT | -0.0% · 5d +0.2% ↺ fades | 55% | 40 | 0.07 | · |
| COIN COIN | SHORT | -1.0% · 5d +0.6% ↺ fades | 53% | 40 | 0.05 | ✓ matches cascade |
| US dollar DXY | SHORT | -0.0% · 5d -0.1% | 53% | 40 | 0.05 | · |
| XHB XHB | SHORT | -0.3% · 5d -0.9% | 53% | 40 | 0.04 | ✓ matches cascade |
| Volatility VIX | SHORT | -0.8% · 5d +0.1% ↺ fades | 53% | 40 | 0.04 | ⚠ differs |
| 10y yield DGS10 | LONG | +2bp · 5d +1bp | 53% | 40 | 0.04 | · |
| SPX SPX | SHORT | -0.2% · 5d -0.6% | 40% | 40 | 0.00 | ✓ matches cascade |
| XLK XLK | LONG | +0.2% · 5d -0.4% ↺ fades | 50% | 40 | 0.00 | ⚠ differs |