Why you 'cannot win even with a high win rate' in 'FX Automated Trading'... The 'Number Trap' that many investors misunderstand
This article explains the pitfall of focusing solely on the win rate in FX automated trading, emphasizing the importance of risk-reward and expected value, and introduces the 'Phoenix PRO' EA designed on these principles.
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- 📰 Published: April 4, 2026 at 01:58
- 🔍 Collected: April 4, 2026 at 05:30 (3h 32m after Published)
- 🤖 AI Analyzed: April 21, 2026 at 02:56 (405h 25m after Collected)
[Phoenix PRO] Japan-origin Span Model EA | An automated trading EA that achieves automatic take-profit, automatic stop-loss, and capital defense in MT4 automated trading, pursuing 'reproducibility of stable operation'.
'FX Automated Trading' is widely recognized in the field of asset management. EAs (Automated Trading Systems) utilizing MT4 automatically execute trades based on rules, enabling operations that are not swayed by emotions.
However, in reality, there are many cases where 'the win rate is high, but assets do not increase' or 'rather, it is a total loss'. Behind this phenomenon is a lack of understanding of a 'certain indicator' that many investors overlook.
'Win rate = excellent system' is a misunderstanding.
When many people evaluate automated trading, what they emphasize the most is the 'win rate'.
Seeing numbers like 70% win rate or 80% win rate, they tend to judge it as a 'winning system'.
However, in reality, it is entirely possible to lose even with a high win rate in the world of investment.
'Risk Reward' is more important than win rate.
What is fundamentally important is the balance between one profit and one loss (risk reward).
For example, even with an 80% win rate, if one loss is 5 times the profit, the assets will ultimately decrease.
Conversely, even with a 40% win rate, if the profit is more than twice the loss, it will be positive in the long run.
Why is 'win rate emphasis' dangerous?
Relying on the win rate easily leads to a structure of winning small and losing big.
This is strongly tied to human psychology, such as delaying stop-loss, taking profit too early, and being unable to extend profits.
The same problem occurs in FX automated trading.
Many automated trading systems are designed to accumulate small profits to achieve a high win rate.
However, there are many cases where large losses are incurred during sudden market changes or trend reversals, ultimately resulting in the loss of profits.
What is needed is 'thinking in expected value'.
What is important in investment is not the win rate, but the 'expected value'.
Expected value is determined by the balance of probability of winning x average profit, and probability of losing x average loss.
'Expected value-based design' realized by Phoenix PRO.
'Phoenix PRO' by Phoenix Connect was designed based on this concept.
'FX Automated Trading' is widely recognized in the field of asset management. EAs (Automated Trading Systems) utilizing MT4 automatically execute trades based on rules, enabling operations that are not swayed by emotions.
However, in reality, there are many cases where 'the win rate is high, but assets do not increase' or 'rather, it is a total loss'. Behind this phenomenon is a lack of understanding of a 'certain indicator' that many investors overlook.
'Win rate = excellent system' is a misunderstanding.
When many people evaluate automated trading, what they emphasize the most is the 'win rate'.
Seeing numbers like 70% win rate or 80% win rate, they tend to judge it as a 'winning system'.
However, in reality, it is entirely possible to lose even with a high win rate in the world of investment.
'Risk Reward' is more important than win rate.
What is fundamentally important is the balance between one profit and one loss (risk reward).
For example, even with an 80% win rate, if one loss is 5 times the profit, the assets will ultimately decrease.
Conversely, even with a 40% win rate, if the profit is more than twice the loss, it will be positive in the long run.
Why is 'win rate emphasis' dangerous?
Relying on the win rate easily leads to a structure of winning small and losing big.
This is strongly tied to human psychology, such as delaying stop-loss, taking profit too early, and being unable to extend profits.
The same problem occurs in FX automated trading.
Many automated trading systems are designed to accumulate small profits to achieve a high win rate.
However, there are many cases where large losses are incurred during sudden market changes or trend reversals, ultimately resulting in the loss of profits.
What is needed is 'thinking in expected value'.
What is important in investment is not the win rate, but the 'expected value'.
Expected value is determined by the balance of probability of winning x average profit, and probability of losing x average loss.
'Expected value-based design' realized by Phoenix PRO.
'Phoenix PRO' by Phoenix Connect was designed based on this concept.