What if ransomware shuts down a national hospital network?
A national hospital-chain ransomware strike is a contained operational/credit event for the operator and cyber-insurers, not a market-wide tail — the +5% VIX and risk-parity delever are overstated. Closest real analogue is the 2024 Change Healthcare/UnitedHealth attack, which hammered the issuer and providers but left the S&P unbothered. Trade idiosyncratic credit, not index vol.
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 coordinated ransomware strike paralyzes a national hospital chain, diverting ambulances and exposing millions of patient records. The trigger decomposes into signed root‑shocks — Geopolitical risk ▲ · 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 | Volatility (VIX) VIXon Hyperliquid 📈 chart | Vol | ▲ +1.3% hist -0.97–+4.75% · other way +3.23% (n=12) |
| 2 | Nasdaq 100 NDXon Hyperliquid 📈 chart | Index | ▼ -0.5% hist -0.56–-0.05% · other way -0.37% (n=12) |
| 3 | Tech sector XLK 📈 chart | Equity | ▼ -0.3% hist -0.29–+0.28% · other way -0.34% (n=12) |
| 4 | Solana SOLon Hyperliquid 📈 chart | Crypto | ▼ -0.3% hist -2.5–+0.73% · other way +0.89% (n=12) |
| 5 | S&P 500 SPXon Hyperliquid 📈 chart | Index | ▼ -0.3% hist -0.15–-0.07% · other way +0.57% (n=12) |
| 6 | Hyperliquid (HYPE) HYPEon Hyperliquid | Crypto | ▼ -0.2% model prior · unmeasured |
| 7 | Semiconductors SMHon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -0.37–+0.72% · other way +2.23% (n=12) |
| 8 | Ether ETHon Hyperliquid 📈 chart | Crypto | ▼ -0.2% hist -9.45–+1.29% · other way +5.13% (n=12) |
| 9 | MicroStrategy MSTRon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -1.61–+3.42% · other way +26.92% (n=12) |
| 10 | Gold XAUon Hyperliquid 📈 chart | Commodity | ▲ +0.1% hist -0.41–+1.64% · other way -0.6% (n=12) |
| 11 | High-yield credit HYG 📈 chart | Rate | ▼ -0.2% hist -0.48–+0.08% · other way -0.32% (n=12) |
Probable recommendation
Why we may diverge from history
Trust the cascade short: MSTR's +14% history is dominated by 2024-25 missile/tariff windows in a structural BTC rally — a hospital-ransomware shock has no crypto bid; history reflects the regime.
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 |
|---|---|---|---|---|---|---|
| ETH ETH | SHORT | -7.7% · 5d -6.4% | 75% | 24 | 0.37 | ✓ matches cascade |
| NDX NDX | SHORT | -0.3% · 5d -1.0% | 66% | 33 | 0.24 | ✓ matches cascade |
| Gold XAU | LONG | +1.4% · 5d -0.3% ↺ fades | 64% | 29 | 0.23 | ✓ matches cascade |
| Volatility VIX | LONG | +3.8% · 5d +3.0% | 61% | 31 | 0.20 | ✓ matches cascade |
| High-yield credit HYG | SHORT | -0.4% · 5d -0.1% | 62% | 28 | 0.19 | ✓ matches cascade |
| Bitcoin BTC | SHORT | -4.2% · 5d -3.6% | 61% | 27 | 0.16 | · |
| SOL SOL | SHORT | -2.2% · 5d -8.1% | 62% | 21 | 0.15 | ✓ matches cascade |
| SMH SMH | LONG | +0.8% · 5d -0.5% ↺ fades | 60% | 29 | 0.15 | ⚠ differs |
| US dollar DXY | SHORT | -0.3% · 5d +0.1% ↺ fades | 57% | 36 | 0.13 | · |
| SPX SPX | LONG | +0.0% · 5d -0.8% ↺ fades | 57% | 36 | 0.12 | ⚠ differs |
| XLK XLK | LONG | +0.4% · 5d -0.3% ↺ fades | 57% | 29 | 0.11 | ⚠ differs |
| MSTR MSTR | LONG | +3.4% · 5d -2.4% ↺ fades | 55% | 29 | 0.08 | ⚠ differs |
| 10y yield DGS10 | LONG | +4bp · 5d +5bp | 54% | 36 | 0.07 | · |
Why this probability
Hospital-network ransomware recurs frequently (Change/Ascension precedents); national-chain paralysis in 6mo plausibly above base. A base‑rate‑anchored prior, continuously scored against what actually happens — not a forecast.