What is the 7 rule in stocks ?

The 7% Rule Could Save Your Portfolio — Here's How It Actually Works

Most investors lose money not because they pick bad stocks, but because they don't know when to sell. That's exactly the problem the 7% sell rule was designed to fix. Developed by William O'Neil as part of his CANSLIM system, this simple stop-loss guideline has helped traders protect their capital before small losses turn into portfolio-wrecking ones. In this video, we break down exactly how the 7-8% rule works, the math behind why cutting losses early matters so much, and how different types of investors — from growth traders to long-term value investors — apply it differently.

Here's what you'll learn:

- What the 7% rule actually means and where it comes from
- The asymmetric-loss math that makes this rule so powerful
- Why this stop-loss applies to your entry price, not the current price
- How growth and momentum traders use it inside the CANSLIM framework
- Why day traders and volatile-sector investors adjust the percentage
- How to set up your own stop-loss discipline before you even buy

This isn't a magic formula or a guaranteed win-rate strategy — it's a discipline principle meant to protect your downside while staying flexible enough for different trading styles. Whether you're new to stock market investing or refining your own risk management approach, understanding this rule can change how you think about every trade you make.

Watch till the end to see how this stop-loss strategy fits into a broader trading plan, and let us know in the comments what percentage you personally use. If this video helped, hit like and subscribe for more practical investing breakdowns.

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