What if the ECB imposes an explicit ceiling on Bund yields?
An explicit Bund-yield cap is ECB capitulation to a disorderly selloff: it caps the long end, steepens via suppressed reals, weakens the euro and bids risk and gold — classic financial-repression. The template is BOJ's 2016 YCC, which pinned JGBs, weakened the yen and supported risk for years. Forward: capping the euro-bloc's benchmark with no JGB-style captive domestic base invites a speculative test of the ceiling, as 2022-23 YCC attacks showed.
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-on shock. The ECB imposes an explicit cap on Bund yields to fight a disorderly selloff, breaking decades of orthodoxy. The trigger decomposes into signed root‑shocks — Fed policy path ▼ · Inflation expectations ▲ — 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 | ▲ +0.8% hist -1.1–+3.45% · other way -17.82% (n=11) |
| 2 | MicroStrategy MSTRon Hyperliquid 📈 chart | Equity | ▲ +0.8% hist -0.23–+1.51% · other way +2.94% (n=12) |
| 3 | Hyperliquid (HYPE) HYPEon Hyperliquid | Crypto | ▲ +0.5% model prior · unmeasured |
| 4 | Ether ETHon Hyperliquid 📈 chart | Crypto | ▲ +0.5% hist -0.55–+1.81% · other way -9.32% (n=11) |
| 5 | Nasdaq 100 NDXon Hyperliquid 📈 chart | Index | ▲ +0.5% hist -0.29–+0.5% · other way -1.09% (n=12) |
| 6 | Bitcoin BTCon Hyperliquid 📈 chart | Crypto | ▲ +0.4% hist -1.65–+0.77% · other way -7.81% (n=12) |
| 7 | Tech sector XLK 📈 chart | Equity | ▲ +0.4% hist -0.02–+0.3% · other way -0.63% (n=12) |
| 8 | Volatility (VIX) VIXon Hyperliquid 📈 chart | Vol | ▼ -0.3% hist -1.45–+2.41% · other way +0.41% (n=12) |
| 9 | Coinbase COINon Hyperliquid 📈 chart | Equity | ▲ +0.3% hist -0.24–+0.95% · other way -0.44% (n=11) |
| 10 | Semiconductors SMHon Hyperliquid 📈 chart | Equity | ▲ +0.3% hist -0.14–+0.87% · other way +0.51% (n=12) |
| 11 | US dollar (DXY) DXYon Hyperliquid 📈 chart | FX | ▼ -0.3% hist -0.28–+0.16% · other way -1.13% (n=12) |
| 12 | 2y Treasury yield DGS2 | Rate | ▼ -3bp model prior · unmeasured |
| 13 | High-yield credit HYG 📈 chart | Rate | ▲ +0.3% hist -0.03–+0.46% · other way -0.09% (n=12) |
| 14 | S&P 500 SPXon Hyperliquid 📈 chart | Index | ▲ +0.2% hist -0.24–+0.27% · other way +1.67% (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 |
|---|---|---|---|---|---|---|
| SMH SMH | LONG | +0.6% · 5d -1.0% ↺ fades | 60% | 40 | 0.19 | ✓ matches cascade |
| Bitcoin BTC | SHORT | -1.7% · 5d -3.6% | 61% | 36 | 0.17 | ⚠ differs |
| JPM JPM | LONG | +0.4% · 5d -0.5% ↺ fades | 60% | 40 | 0.17 | ✓ matches cascade |
| XLF XLF | LONG | +0.5% · 5d -0.2% ↺ fades | 56% | 40 | 0.10 | ✓ matches cascade |
| MU MU | LONG | +1.6% · 5d -1.3% ↺ fades | 56% | 40 | 0.10 | ✓ matches cascade |
| Gold XAU | SHORT | -0.8% · 5d -0.4% | 56% | 40 | 0.10 | · |
| High-yield credit HYG | LONG | +0.3% · 5d +0.2% | 56% | 40 | 0.09 | ✓ matches cascade |
| TSM TSM | LONG | +1.1% · 5d -1.6% ↺ fades | 56% | 40 | 0.09 | ✓ matches cascade |
| MRVL MRVL | LONG | +1.4% · 5d -1.6% ↺ fades | 56% | 40 | 0.09 | ✓ matches cascade |
| SOL SOL | LONG | +2.9% · 5d -5.3% ↺ fades | 54% | 27 | 0.05 | ✓ matches cascade |
| 10y yield DGS10 | LONG | +2bp · 5d -2bp ↺ fades | 53% | 40 | 0.05 | · |
| XLK XLK | SHORT | -0.2% · 5d -0.8% | 51% | 40 | 0.02 | ⚠ differs |
| SPX SPX | SHORT | -0.4% · 5d +0.0% ↺ fades | 51% | 40 | 0.02 | ⚠ differs |
| INR INR | SHORT | -0.1% · 5d +0.2% ↺ fades | 51% | 40 | 0.02 | ⚠ differs |
Why this probability
Explicit Bund yield cap breaks core orthodoxy; near-novel, very low even over 18mo. A base‑rate‑anchored prior, continuously scored against what actually happens — not a forecast.