Stocks as an extracurricular

Hi! So currently im going into 11th grade and I have a burning passion for day trading and investing, Ive made significant gains and like to think I’m really good at it. But the problem is I dont know how to put this on my college application/what I can do to expand on it to make it more applicable and impressive for college apps. I could use some ideas or help, thanks!

Writing about it in an essay might be the way to go. Hobbies can make excellent ECs, but keep in mind some colleges want to see evidence of leadership, playing well with others, and giving back to the community. So unless you are doing this as part of your school’s investment club, I would make sure this is not your only EC.