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Risk & Psychology 6 min read•Difficulty: Beginner
The Mathematical Reality of Drawdown & Position Sizing
Why a 50% loss requires a 100% gain just to break even, and how fixed-percentage risk models preserve longevity.
The single factor distinguishing long-term survival in financial markets from rapid blowup is risk management. It is not about how often you are right, but how much you lose when you are wrong.
As drawdown increases, the gain required to restore initial capital increases exponentially. A 10% drawdown requires an 11.1% gain. A 30% drawdown requires a 42.9% gain. A 50% drawdown requires a 100% gain.
By risking no more than 1% to 2% of total capital per trade, a trader can withstand a 10-trade losing streak without fatal psychological or financial damage.
Key Execution & Conceptual Rules
Never risk more than 1-2% of trading equity on any single idea.
Always calculate position size based on stop-loss distance, never by arbitrary lot counts.
Capital preservation takes priority over capital growth.