I’ve built trading systems for 15 years.
The biggest risk failures I’ve seen weren’t bad signals.
They were sizing failures.
A strategy can have positive expectancy —
and still blow up an account.
What usually goes wrong:
• Position size grows faster than edge
• Leverage masks regime shifts
• Recent wins distort risk perception
Risk isn’t about being right.
It’s about surviving when you’re wrong.
Execution systems amplify returns.
Leverage amplifies mistakes.