A 70% win rate that still goes to zero
The leak isn't your edge. It's your bet size — and the math is brutal.
Here's a number that should bother you: a trader wins 70% of the time and still grinds the account to zero.
Not bad luck. Math.
The belief that kills accounts is that your edge is your win rate — get direction right often enough and the money takes care of itself. It doesn't. Your win rate tells you if you win. Your bet size tells you if you survive to collect it.
Walk the simplest case with me. Start at $100. Bet 15% every flip on a coin that wins 70% of the time. First, a 15% loss and a 15% gain don't cancel — lose then win and you're at $97.75, not $100. That gap is the compounding tax, and it widens with size.
Then the part nobody budgets for. A 70% win rate is a 30% loss rate, which means runs of five and six losses aren't the disaster scenario — over a year they're routine. Six losses at 15% takes $100 down to $38. To climb back to even you don't need 62%, you need a 163% gain. Your wins pay 15% each. Good luck.
Hold the edge at 70% and plot ruin against bet size: near zero at 2%, still safe at 5%, then somewhere around 10–12% the curve goes vertical. By 15%, the same winning strategy becomes a guaranteed zero.
What a disciplined trader does: size off the worst case. Risk 1–2% of the account per trade — the entry-to-stop distance times position, not the whole position. On a $10k account that's $100–$200 of real risk. It feels painfully small. That feeling is why most people over-size and blow up.
Tonight, pull up your last twenty trades and calculate what each one actually risked. Anything north of 5%, fix the size before you touch the strategy.
This is educational commentary, not personalized financial advice. Do your own work before you risk real money.
Full walkthrough, curve and all, here: https://youtu.be/v3syqtp6ato
— Paragon Signals