What to know
- Start with the Chris Camillo portfolio estimate before reading this signal
- Translate percentages into dollar amounts
- Adjust the scenario for your own capital
- Use the worksheet to plan copy trades effectively
Estimating Position Size
The first step in mirroring a portfolio is understanding the size of each position. This is typically calculated by dividing the value of a single holding by the total value of the portfolio. For example, if a portfolio is worth $100,000 and a specific stock represents $10,000, its size is 10%.
Estimating Holdings Without Exact Data
Often, exact portfolio values are not public. You may need to estimate holdings based on available data like public filings or tracker estimates. Focus on the relative size of positions. If one stock appears significantly larger than others in available data, assign it a higher estimated size.
Turning the Estimate Into Dollar Amounts
Once you have a rough estimate, you can apply it to a hypothetical account size. If a $10,000 scenario gives one stock 15%, that would show $1,500 for that ticker. Treat that as planning math, not a buy order.
Adjusting for Your Risk Tolerance
While matching position sizes is the goal, you must adjust based on your personal risk tolerance. If a target position represents a high percentage of the source portfolio but feels too risky for you, reduce its size and allocate the difference to other positions or cash.
Using the Worksheet for Planning
Use the worksheet for planning only: enter a hypothetical account size, compare the dollar amounts, and decide whether the concentration would be too aggressive before committing real funds.
FAQ
How do I determine the size of a stock in a portfolio?
To determine a stock's size, divide the market value of your holding in that stock by the total market value of your entire portfolio. This gives you the percentage that specific stock represents within the overall portfolio.
Can I use this worksheet if I don't have exact portfolio values?
Yes, you can use estimates. Focus on the relative size of positions as indicated by available data. While not perfectly precise, estimating position sizes based on available information is a common practice for approximating portfolio structures.
What is the purpose of a portfolio mirror worksheet?
The purpose is to help traders turn a portfolio estimate into dollar scenarios. It translates percentages into easier-to-read amounts without pretending those amounts are instructions.