Should I mention my investment portfolio in my common app activities list?

Background: I have a 4.0 unweighted GPA and got a 35 on the ACT. I will be applying to HYPS as well as Duke, Vandy, and Ohio State. (I’m from Ohio)

Anyways, my parents gave me $5,000 when I was 13 and told me to try and invest it (I know, not your typical 13th birthday present). I have grown the sum to just over $12,000 and spend a lot of time researching the market and moving the money around. Would this be an okay thing to put on the activities list?