Better System Trader

012: Ernest Chan talks quantitative trading, momentum, stop losses, minimising drawdown and maximising returns, automated trading and competing with the big firms

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Jun 21, 2015
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INSIGHT

Momentum Crash Explanation

  • Momentum crashes occur after crises when rebounding prices conflict with long-lookback momentum strategies.
  • This leads to incorrect signals and losses, especially for short positions.
ADVICE

Handling Momentum Crashes

  • Account for momentum crashes during backtesting by incorporating rules based on market drops.
  • Diversify by trading both momentum and mean-reversion strategies to hedge against drawdowns.
ADVICE

Stop-Loss Use

  • Use stop-losses in momentum strategies because a loss signals a reversal.
  • Avoid stop-losses in mean-reversion strategies unless you are protecting against catastrophic failure.
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