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PTC Trading Math Calculator

PTC Trading Math — Expectancy + Risk + Monte Carlo

Plug in win rate, R:R, risk, and costs. Then stress-test outcomes with Monte Carlo and prop-firm style drawdown rules.
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Teaching note: This is probability + risk modelling. It’s designed to help you understand expectancy, variance, and drawdown constraints. It does not predict your next trades.

Results

Monte Carlo: 20 sample equity curves (same inputs, different randomness)
Monte Carlo: final outcome distribution (histogram of ending equity / P&L)
Interpretation: If expectancy is positive but Monte Carlo shows frequent blow-ups, your issue is usually risk sizing + drawdown rules + costs + variance. Not “forex is impossible”.

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