Where to invest 100$

I have about 100$ to invest, where to I invest stock market.

set your money on fire and look for a signal in the smoke

Ye not much you can do w/ 100$. You'd be better off setting up an account with TD AMeritrade so you can use Thinkorswim for the simulated trading (it's all free) and use your 100$ to buy coffees while you practice trading at the bookstore so you can read their books and watch Tastytrade.com.

Use the money to buy books on topics that interest you maybe forex trading or invest it in a pamm account that is doing well.