The "123 rule" is not a widely recognized or established trading rule in the financial world. It's possible that this term is being used in a specific context or community, or it might be a misinterpretation of a different trading strategy.
To provide a helpful answer, we need more information about the context in which you heard this term. Please clarify:
- Where did you encounter this term? (e.g., a book, website, trading forum)
- What is the specific context of the term? (e.g., is it related to a specific market, time frame, or trading style?)
- Can you provide any additional details about the rule? (e.g., what are the steps involved?)
Once we have a clearer understanding of the "123 rule," we can provide a more accurate and informative answer.