Investing Performance with vs without fees

Hello traders,

I had a chat with a friend recently who's using a fund manager services to invest for him in some US-based ETFs tracking the US indices.

I showed him using an online tool that those 2% annual fees he's paying to his fund manager are eating a lot of his profit overtime.

As I had some time, I decided to code this simulator in Pinescript because .... why not :)
@RicardoSantos already did that Compound Interest function (www.tradingview.com/...ionCompoundInterest/)
I added the n parameter being the number of times the interest is compounded per unit of time

Compound interest is calculated using the following formula

CI = P*(1 + R/n) (n*t) – P


  • P is the principal amount.
  • R is the annual interest rate.
  • t is the time the money is invested or borrowed for.
  • n is the number of times that interest is compounded per unit t, for example if interest is compounded monthly and t is in years then the value of n would be 12.
    If interest is compounded quarterly and t is in years then the value of n would be 4.

For now, the script only works on a yearly chart - I might update it later making it compatible with other chart timeframes - assuming there is some demand for it
If there is, let me know in the comments down below

All the best

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