Quote from bali_survivor:
- There are some systems that have occasionally the big drawdown and the big runup ("the fat outlier").
How true! I recently lost 15% of my account in two days but was totally unfazed by the loss. Why? Because through dedicated backtesting and optimization, I know that my system's max drawdown is 19%--as long as I don't go beyond that, it can make up the loss on its own. Going beyond a 19% loss would indicate to me that my current primary trading system is no longer tuned to underlying market conditions, and even then, I wouldn't see it as a catastrophic loss. I learned from my last personal crash that it's all water under the bridge (after suffering a crushing defeat in Nov.-Dec. of 2003, I came back strong and blew through my all-time highs last month. Now is the inevitable pullback). It's great to be cool about losses and not take them personally.