The Power of Compounding

What is Compounding in Trading?

Compounding is the process where the value of an investment increases because the earnings on an investment, both capital gains and interest, earn interest as time passes. In trading, compounding occurs when you reinvest your profits from previous winning trades back into your trading capital, thereby increasing your base account size for future position sizing.

The Mathematical Formula

To project the future value of a trading account assuming a consistent average win percentage per trade, use the exponential growth formula:

Practical Trading Scenario

Let's say you start with a $10,000 account and you have a trading system that nets you an average gain of 2% per trade (after accounting for losses and fees).

If you compound your returns—meaning you constantly resize your positions to utilize your new, larger account balance—after 100 trades, your account won't just be up 200%. Due to exponential growth, your ending balance will be approximately $72,446. That is a 624% return. Compounding requires extreme discipline and risk management to avoid severe drawdowns that disrupt the exponential curve.