drawdown
# Drawdown — Drawdown Analysis & Risk Measurement Reference
Quick-reference skill for understanding, calculating, and applying drawdown metrics in portfolio management and risk analysis.
## When to Use
- Measuring maximum drawdown of a portfolio or strategy
- Comparing risk profiles of different investments
- Setting stop-loss levels based on historical drawdowns
- Stress-testing strategies against worst-case scenarios
- Evaluating fund manager performance through drawdown lens
## Commands
### `intro`
```bash
scripts/script.sh intro
```
Overview of drawdown — definition, significance, and types.
### `calculate`
```bash
scripts/script.sh calculate
```
How to calculate drawdown — formulas, step-by-step, and time series methods.
### `metrics`
```bash
scripts/script.sh metrics
```
Key drawdown metrics — MDD, Calmar ratio, Ulcer Index, pain index.
### `historical`
```bash
scripts/script.sh historical
```
Major historical drawdowns — market crashes, recovery timelines.
### `management`
```bash
scripts/script.sh management
```
Drawdown management — position sizing, stop-losses, risk budgeting.
### `recovery`
```bash
scripts/script.sh recovery
```
Recovery analysis — math of recovery, time to recover, asymmetry of losses.
### `comparison`
```bash
scripts/script.sh comparison
```
Drawdown vs other risk measures — volatility, VaR, CVaR, Sortino.
### `examples`
```bash
scripts/script.sh examples
```
Worked examples with calculations and strategy evaluation.
### `help`
```bash
scripts/script.sh help
```
### `version`
```bash
scripts/script.sh version
```
## Configuration
| Variable | Description |
|----------|-------------|
| `DRAWDOWN_DIR` | Data directory (default: ~/.drawdown/) |
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skill
ai