What happens to your portfolio when the system breaks?
Your real holdings, run through the worst economic events in recorded history.
It shows you the floor. Not what you'll make. What you'll have left. Built for people who think in ounces, not just dollars.
Not a prediction. A stress test.
Build your roster See a worked example
Free. No account, nothing to install, nothing saved.
How it works
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01
Deploy your holdings
Use your real portfolio, or theory-craft to build the perfect hedge. Metals by the ounce, coins by the piece, property, cash, tickers.
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02
Select your scenario
Seven historical downturns and five looming hypotheticals. You can have any swan you like, as long as it's black.
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03
Audit the basket, asset by asset
Every scenario opens with what actually happened, then shows how your basket fares overall, and which holdings acted as a shield and which took the hit.
A calculator with historical memory
Every number shows its work
No black box. Each holding carries the specific historical rule that moved it, so you can check the reasoning instead of trusting the output.
Example output: 1970s Stagflation
Basis: Decade 1970-1980, real purchasing power
Checking / Savings
10,000 $
Why this number
- ×0.50 Idle dollars lost half their purchasing power over the decade
Residential Real Estate
1 Units
Why this number
- ×1.30 Housing was a real winner: ~2.7x nominal, ~1.3x after inflation
Illustrative figures on a round $10,000 per holding, using the same rules the engine runs. Your own run uses live prices and your actual quantities.
The scenarios
Twelve in total. Three run free, the ones most people have either lived through or grown up hearing about.
Historical 7
- 1970s Stagflation Free
- The 2008 Financial Crisis Free
- The 2020 COVID Crash & Recovery Free
- The Panic of 1873 Full version
- The Panic of 1893 Full version
- The Great Depression (1929–1932) Full version
- The 1934 Gold Reserve Act Full version
Hypothetical 5
- 2026 Bank Holiday Full version
- 2026 Sovereign Debt Crisis Full version
- Industrial Slump Full version
- Land Value Shift Full version
- Tech Winter Full version
Hypotheticals carry a confidence rating on every run. They are informed by historical patterns and documented conditions, not validated against an event that has happened, and the app says so on the page, every time.
Know your floor before the ceiling falls
Try it for yourself
Enter what you hold, pick a scenario, read the floor. Nothing is stored on our servers. While you build your list, it's kept only in this browser tab.