skip to content
  1. Home
  2. >
  3. Questions
  4. >
  5. CLS: Practicing "let your winners run" I now find two of my stocks accounting for 29% of my portfolio of 19 stocks - CLS 18% and PNG 11%, Is there a corresponding expression to tell when and how to deci... [Celestica Inc.]
You can view 2 more answers this month. Sign up for a free trial for unlimited access.

Investment Q&A

Not investment advice or solicitation to buy/sell securities. Do your own due diligence and/or consult an advisor.

Q: Practicing "let your winners run" I now find two of my stocks accounting for
29% of my portfolio of 19 stocks - CLS 18% and PNG 11%,

Is there a corresponding expression to tell when and how to decide they've run far enough and start cutting back ?

Thanks as always for your help. It's greatly appreciated.

John

Asked by John on January 22, 2026
5i Research Answer:

Not really. But as large weightings increase, a portfolio becomes more of a bet on one or two stocks rather than a portfolio. One rule we like to use is to assume that ANY stock could go down 50% overnight. This, investors with a 12% position need to ask how they would feel seeing their portfolio drop 6% instantly with one bad event at one company. This can help frame risk parameters for investors.