What if a grounded ship shuts the Bosphorus to exports?
A grounding that shuts the Bosphorus traps Black Sea wheat and Russian Urals crude, lifting CBOT/Matif wheat and a Brent premium as ~3M bbl/day and major grain flows back up. Rhymes with the 2022-23 Black Sea grain-corridor disruptions that whipsawed wheat. Russia/Ukraine/Kazakhstan are the trapped exporters; Turkey is the gatekeeper. The forward angle is the climate_supply root is the wrong driver - this is a chokepoint/geopolitical-logistics event, so wheat belongs in the cascade more than it currently appears.
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 0–6 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. A grounded grain vessel shuts the Bosphorus, trapping Black Sea wheat and Russian crude exports for weeks. The trigger decomposes into signed root‑shocks — Geopolitical risk ▲ · Oil supply risk ▲ · Food inflation ▲ · Inflation surprise ▲ — 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 | Volatility (VIX) VIXon Hyperliquid 📈 chart | Vol | ▲ +3.8% hist +0.08–+5.13% · other way -3.16% (n=12) |
| 2 | Brent crude BRENTon Hyperliquid 📈 chart | Commodity | ▲ +3.0% hist -0.97–+1.77% · other way -3.86% (n=12) |
| 3 | WTI crude CLon Hyperliquid 📈 chart | Commodity | ▲ +2.5% hist -5.03–+1.52% · other way -3.53% (n=12) |
| 4 | Nasdaq 100 NDXon Hyperliquid 📈 chart | Index | ▼ -1.7% hist -1.18–-0.37% · other way -0.58% (n=12) |
| 5 | Energy sector XLEon Hyperliquid 📈 chart | Equity | ▲ +1.8% hist -0.65–+1.02% · other way -1.0% (n=12) |
| 6 | Tech sector XLK 📈 chart | Equity | ▼ -1.4% hist -0.92–-0.27% · other way -0.48% (n=12) |
| 7 | United Airlines UAL 📈 chart | Equity | ▼ -1.5% hist -3.42–+5.99% · other way +8.76% (n=12) |
| 8 | ExxonMobil XOM 📈 chart | Equity | ▲ +1.2% hist +0.3–+1.11% · other way -1.61% (n=12) |
| 9 | S&P 500 SPXon Hyperliquid 📈 chart | Index | ▼ -1.0% hist -1.47–+0.06% · other way +1.53% (n=12) |
| 10 | Chevron CVX 📈 chart | Equity | ▲ +1.1% hist +0.3–+0.75% · other way +0.36% (n=12) |
| 11 | Delta DAL 📈 chart | Equity | ▼ -1.3% hist -1.64–+3.07% · other way +4.3% (n=12) |
| 12 | MicroStrategy MSTRon Hyperliquid 📈 chart | Equity | ▼ -0.9% hist -2.06–+2.85% · other way +30.65% (n=12) |
| 13 | 30y Treasury yield DGS30 📈 chart | Rate | ▲ +7bp hist -1.4–+11.79% · other way +5.1% (n=12) |
| 14 | Semiconductors SMHon Hyperliquid 📈 chart | Equity | ▼ -0.7% hist -0.52–-0.16% · other way +0.56% (n=12) |
Probable recommendation
Why we may diverge from history
Trust the cascade long on CL/BRENT: Bosphorus traps Black Sea crude — a supply shock — yet history's negatives are 2014/2020 oversupply collapses across just 5 analogues; the sample is stale and off-channel.
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 |
|---|---|---|---|---|---|---|
| HOOD HOOD | LONG | +7.7% · 5d +0.5% | 75% | 15 | 0.46 | ⚠ differs |
| COIN COIN | LONG | +11.9% · 5d +3.5% | 75% | 15 | 0.45 | ⚠ differs |
| CL CL | SHORT | -4.9% · 5d -2.9% | 72% | 30 | 0.39 | ⚠ differs |
| AMD AMD | SHORT | -2.9% · 5d -0.8% | 74% | 36 | 0.39 | ✓ matches cascade |
| INTC INTC | SHORT | -3.1% · 5d -1.7% | 65% | 36 | 0.25 | ✓ matches cascade |
| Volatility VIX | LONG | +3.0% · 5d +7.6% | 64% | 35 | 0.24 | ✓ matches cascade |
| NDX NDX | SHORT | -0.3% · 5d -0.8% | 65% | 36 | 0.23 | ✓ matches cascade |
| XLE XLE | SHORT | -1.3% · 5d -1.4% | 62% | 31 | 0.23 | ⚠ differs |
| MRVL MRVL | SHORT | -0.5% · 5d -3.2% | 66% | 30 | 0.23 | ✓ matches cascade |
| BRENT BRENT | SHORT | -2.0% · 5d -1.1% | 62% | 27 | 0.21 | ⚠ differs |
| NVDA NVDA | SHORT | -3.2% · 5d -5.6% | 62% | 31 | 0.21 | ✓ matches cascade |
| SOL SOL | LONG | +1.9% · 5d -5.3% ↺ fades | 66% | 15 | 0.20 | ⚠ differs |
| MU MU | SHORT | -2.7% · 5d -4.2% | 62% | 36 | 0.20 | ✓ matches cascade |
| TSM TSM | SHORT | -1.8% · 5d -3.2% | 63% | 32 | 0.20 | ✓ matches cascade |
Why this probability
Bosphorus groundings happen but full multi-week closure uncommon; brief disruptions more typical. A base‑rate‑anchored prior, continuously scored against what actually happens — not a forecast.