Trading Journals and Performance Metrics — Developing a Trading Process
Traders tend to remember big wins and big losses vividly while forgetting the many small, routine trades in between — this creates a distorted sense of…
Why a journal matters more than memory
Traders tend to remember big wins and big losses vividly while forgetting the many small, routine trades in between — this creates a distorted sense of how a strategy is actually performing. A trading journal replaces that distorted memory with an objective record.
Một nhật ký giao dịch hữu ích ghi lại cho mỗi giao dịch: giá và thời gian vào/thoát lệnh, quy mô vị thế, lý do vào lệnh (quy tắc nào đã kích hoạt), kết quả tính bằng pip và tiền, cùng một ghi chú ngắn về việc kế hoạch có được tuân thủ chính xác hay không.
[Read the lesson: Trading Journals and Performance Metrics](/learn-to-trade/developing-a-trading-process/trading-journals-and-performance-metrics)
Metrics beyond win rate
Win rate alone is incomplete — a strategy can win 70% of the time and still lose money if losses are much larger than wins. Average win size, average loss size, and the reward-to-risk ratio should be tracked alongside win rate.
Drawdown tối đa (mức sụt giảm lớn nhất từ đỉnh xuống đáy của giá trị tài khoản) là một chỉ số quan trọng khác, vì nó cho thấy chiến lược có thể gây ra bao nhiêu tổn thất ngay cả khi vẫn có lãi tổng thể.
[Read the lesson: Trading Journals and Performance Metrics](/learn-to-trade/developing-a-trading-process/trading-journals-and-performance-metrics)
Qualitative notes matter too
Beyond the numbers, noting emotional state and rule adherence for each trade helps separate strategy problems from execution problems. If most losing trades also broke a written rule, the lesson is about discipline, not about the strategy's logic.
Reviewing the journal periodically — not after every single trade — avoids overreacting to short-term variance that is normal even for a genuinely profitable strategy.
[Read the lesson: Trading Journals and Performance Metrics](/learn-to-trade/developing-a-trading-process/trading-journals-and-performance-metrics)
Journals don't predict the future
Just like backtests, journal statistics describe what already happened. A strong historical record from journaling increases confidence in a process, but market conditions can shift, and no journal can guarantee the next 50 trades will resemble the last 50.
The real value of a journal is in catching problems early and guiding deliberate improvement, not in forecasting exact future returns.
[Read the lesson: Trading Journals and Performance Metrics](/learn-to-trade/developing-a-trading-process/trading-journals-and-performance-metrics)