this is so petit bourgeois.

stock market is capital detached from all ethical concern.
if you own stocks then you are rent seeking.

only good way to own stocks is like the CCP: have a huge voting bloc so you can direct company policy.

send that money to bail funds or mutual aid.
or help someone pay off loans to avoid interest.

that said, there is a weird subculture of high speed traders that make boatloads of money and try to do effective altruism with it.
it is like the Bill Gates vs Martin Skirelli dichotomy: both are just capitalists, but only one of them is doing apologetics for the existing system.

when you enter the casino market, you are up against professionals, mathematicians, and highly advanced machine learning systems.
like multi-million dollar systems that scrape twitter sentiment, do news forecasting.

the only way that comm could be cool is using imaginary investments, possibly matched with mutual aid donations, instead of real money.

edit: even just in terms of mental health, owning real stocks is not good for you, it gets so obsessive.