This is why you should allow investors to choose longer investment periods if they wish so.

Here I have posted a detailed math on how investors are almost guaranteed to actually lose money when investing in small trading period programs.

https://www.reddit.com/r/genesisvision/comments/b47ztx/this_is_why_you_should_be_very_cautious_when/

Please thoroughly consider this example. I think investors should be aware of this possibility. 

And even if someone chooses a longer trading period there is an extremely high possibility of abuse by resetting trade periods too frequently.