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Goldman Academy

When to change a strategy, and when to leave it alone

Expert⏱ 8 min readUpdated 31 Oct 2026
In this lesson you'll learn
  • How to tell a normal drawdown from a broken edge
  • Objective rules for pausing a strategy
  • How to change without starting from zero

The hardest decision in trading

Every strategy has losing periods. Quit during a normal drawdown and you miss the recovery; keep going when the edge has really gone and you lose more. The answer is to decide the rules before the drawdown.

Normal or broken?

  • Compare the current drawdown and losing streak with the backtest and live history. Within the historical range: probably normal.
  • Check the conditions: is the market in the regime the strategy was built for?
  • Check yourself: were the rules followed? Many "broken strategies" are broken discipline.

Write the pause rule now

Example: "If the drawdown exceeds 1.5 × the worst historical drawdown, or the last 50 trades have negative expectancy after costs, I stop trading it live and return to demo for review."

Changing well

  • Change one thing at a time, and test it.
  • Keep the old version's statistics for comparison.
  • Prefer small adjustments (filters, session times) over a whole new system.
Common mistakes
  • Abandoning a strategy after a normal losing week.
  • Never stopping a strategy whose edge has clearly gone.
  • Changing several rules at once.

Check yourself

1. A drawdown within the historical range is probably…
2. When should pause rules be written?
3. Many "broken strategies" are actually…

Key takeaways
  • Compare drawdowns with history before deciding.
  • Write objective pause rules in advance.
  • Change one thing at a time, and test it.
Education, not advice. Goldman Academy teaches how markets and tools work. Nothing here is a recommendation to buy or sell, and no lesson promises profits. Trading leveraged products carries a high risk of losing money; only trade money you can afford to lose. · Written by Goldman Academy, reviewed by Faisal