Normal Drawdown or a Broken Strategy? What to Check First
A smaller loss can reveal a bigger problem. Compare the duration, trade outcomes, costs, and settings before blaming—or defending—the strategy.
Risk Management
Practical guides to judging drawdowns, leverage, position risk and whether a trading strategy has stopped working.
策略连续亏损，到底是正常回撤，还是已经失效了？
策略又亏了，停不停都纠结？别只盯回撤百分比，把这次亏损和过去的记录放在一起，先查哪里变了。
Are High Win Rate Strategies Worth Testing? 6 Ways to Tell
A high win rate can still lose money. Use six practical checks to review a strategy's results, rules, costs, risk, and overfitting before you test it.
96%胜率的交易策略靠谱吗？6步判断是否值得测试
高胜率不等于高收益。用6步核查策略来源、样本、规则、盈亏结构、交易成本与过拟合风险，判断它是否值得继续研究。
High Return, Bad Strategy? Drawdown and Sharpe in Plain English
High return does not automatically mean a good strategy. Learn how return, maximum drawdown, and Sharpe reveal different parts of risk and performance.
高收益就是好策略？用大白话看懂最大回撤和夏普比率
账户跌30%，要涨42.9%才能回本。用大白话看懂收益率、最大回撤和夏普比率，别再只看漂亮的历史测试截图。