Use Case 04 — Drawdown Stress Testing
The stress test
The distributions answer the questions every drawdown eventually forces:
The stress test
The distributions answer the questions every drawdown eventually forces:
The core idea
How MARS uses this
Drawdown from Equity Peak High routes the account into a gate. The gate then selects the throttle row, caps the maximum risk tier, sets the brake tone, and constrains which management variants are even permitted. Every deployment decision starts by reading this ladder - a good setup cannot override a restricted gate.
How it benefits you
The question 'should I be trading full size right now?' gets an exact answer instead of a mood. Risk compresses automatically as damage grows and re-expands only as capital heals - protecting accumulated gains, not just starting capital, without requiring willpower in the moment.
The seven-gate capital ladder. Each state carries its own brake meaning, tier cap, and risk authority - the marker shows an account operating in Growth.
The live comparison
When live drawdown arrives, it reads against the simulated bands and the current gate state. A P60 drawdown inside expected duration is normal variance — painful, budgeted, survivable. Drawdown beyond the adverse bands, or gate dwell far above simulation, is structural damage that earns a real investigation.
Modules involved
The Monte Carlo Lab generates the distributions, Drawdown Percentiles publish the bands, and Drawdown Control plus the gate ladder govern the live response.
Reference
| Step | Instrument | Output |
|---|---|---|
| Simulate the profile | Monte Carlo Lab | Drawdown percentiles — median and worst-twentieth futures |
| Map depth to governance | Gate ladder | Which gates the account should expect to visit, and how often |
| Predefine the response | Daily / weekly brake doctrine | Brakes chosen calmly in advance, not improvised at the floor |
| Rehearse the record | Cycle Decision Log | An audit trail proving the plan was followed when it hurt |
Connected inside MARS
Go deeper
Deep dive — 01
You can pass the stress test on paper and fail it in the eleventh week underwater.
Read the full brief →
Deep dive — 02
Two people set your risk response. Make sure it is the one who is not underwater.
Read the full brief →
Deep dive — 03
No gate fires for time. The slow bleed evades every depth alarm by design.
Read the full brief →
Take it further
Stress testing is where an assumption finally states its price. The Foundry lets you find that price before the market quotes it.
Open the AlphaRail Foundry Lab ↗One price. Eleven workbooks, three TradingView indicators, and the full manual library — $497.
