Trading & Risk Sizing Suite
Professional traders never estimate lot sizes or gamble on drawdown risks. Use these free mathematical models to precisely calculate position sizes, monitor risk-to-reward ratios, and project long-term capital compounding.
01. Fixed Fractional Position Sizing Calculator
Dynamically adjusts shares or contract lots based on your exact dollar risk per trade.
Institutional Position Size & Risk Calculator
Calculate exact units to trade based on your predefined risk threshold.
02. Exponential Compound Returns Simulator
Visualize geometric portfolio growth with monthly capital infusions and constant rate-of-return compounding.
Compound Capital Growth Simulator
Simulate exponential portfolio growth with disciplined reinvestment.
* Compounding assumes monthly capitalization with continuous reinvestment of trading edge and dividends.
The Golden Rule of Drawdown Math
Every loss in your portfolio reduces the base against which future returns must be generated. Study this table before sizing your next trade:
| Portfolio Loss | Required Gain to Recover | Survival Difficulty |
|---|---|---|
| -5% | +5.3% | Negligible |
| -10% | +11.1% | Standard variance |
| -25% | +33.3% | Moderate difficulty |
| -50% | +100.0% | Extreme; requires doubling entire remaining balance |
| -75% | +300.0% | Near-certain account insolvency |