What if the LME suffers another nickel default?
Another LME nickel halt with cancelled trades is primarily an exchange-credibility/financial-plumbing shock — it widens nickel spreads and dents LME volumes, with copper/Freeport a tangential beta. Rhymes directly with the March-2022 LME nickel default when Tsingshan's short forced a halt and trade busts that drove participants to CME/SHFE. Forward angle: post-2022 reforms (price limits, OTC reporting) cap the squeeze mechanics, but Indonesian NPI oversupply means any spike is supply-driven and fades — the durable trade is migration of nickel liquidity away from the LME, not flat price.
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 mixed shock. A short-squeeze on low-grade nickel forces another LME trading halt and cancelled trades, shattering exchange credibility. The trigger decomposes into signed root‑shocks — Financial conditions ▲ · Industrial demand ▲ — 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 | Freeport (copper) FCX 📈 chart | Equity | ▲ +0.7% hist -4.12–+1.04% · other way +11.6% (n=10) |
| 2 | Copper XCUon Hyperliquid 📈 chart | Commodity | ▲ +0.3% hist -3.34–+0.85% · other way +1.34% (n=10) |
| 3 | MicroStrategy MSTRon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -4.02–+1.35% · other way +21.34% (n=10) |
| 4 | Platinum XPTon Hyperliquid 📈 chart | Commodity | ▲ +0.2% hist -4.97–+1.7% · other way +5.52% (n=10) |
| 5 | Palladium XPDon Hyperliquid 📈 chart | Commodity | ▲ +0.2% hist -5.5–+2.2% · other way +3.41% (n=10) |
| 6 | Solana SOLon Hyperliquid 📈 chart | Crypto | ▼ -0.2% hist -4.31–+2.67% · other way -7.78% (n=4) |
| 7 | Ether ETHon Hyperliquid 📈 chart | Crypto | ▼ -0.2% hist -7.07–+4.58% · other way +5.55% (n=4) |
Probable recommendation
Why we may diverge from history
Trust history's XCU short — n=12, hit 0.92, Lehman-and-bank-panic analogues all crashed copper; an LME nickel default is a credit/liquidity event where the cascade's 'metal up' over-reaches versus a clean sample.
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 |
|---|---|---|---|---|---|---|
| Bitcoin BTC | SHORT | -4.7% · 5d -1.2% | 71% | 11 | 0.37 | · |
| FCX FCX | SHORT | -3.7% · 5d -1.5% | 69% | 30 | 0.34 | ⚠ differs |
| SOL SOL | SHORT | -4.3% · 5d -7.6% | 73% | 8 | 0.33 | ✓ matches cascade |
| XCU XCU | SHORT | -3.0% · 5d -1.3% | 68% | 30 | 0.32 | ⚠ differs |
| ETH ETH | SHORT | -7.2% · 5d -3.2% | 73% | 8 | 0.29 | ✓ matches cascade |
| High-yield credit HYG | SHORT | -0.6% · 5d -0.1% | 67% | 28 | 0.29 | · |
| XPT XPT | SHORT | -4.6% · 5d -2.4% | 61% | 30 | 0.21 | ⚠ differs |
| Volatility VIX | LONG | +8.3% · 5d +2.1% | 62% | 32 | 0.21 | · |
| MSTR MSTR | SHORT | -3.6% · 5d -3.5% | 59% | 30 | 0.14 | ✓ matches cascade |
| XPD XPD | SHORT | -5.2% · 5d -2.6% | 58% | 30 | 0.14 | ⚠ differs |
| Gold XAU | LONG | +0.3% · 5d +0.3% | 56% | 30 | 0.11 | · |
| 10y yield DGS10 | SHORT | -10bp · 5d -5bp | 56% | 40 | 0.11 | · |
| US dollar DXY | LONG | +0.3% · 5d +0.2% | 49% | 40 | 0.00 | · |
Why this probability
LME reformed post-2022 nickel debacle; another halt-and-cancel is possible but institutionally guarded against. A base‑rate‑anchored prior, continuously scored against what actually happens — not a forecast.