Kindly refer to the following link(s):
Ruling for stock exchange - website
https://www.assimalhakeem.net/i-want-to-know-that-is-forex-trading-halal-or-haram/
Ruling of Forex trading in Islam
People who justify investing in shares, stocks of companies that take 10%, 30% haram loans etc
Question regarding trading in the Saudi stock market
Share Trading: Haram or Halal?
Investing in the stock / share market
Trading in Stocks or Shares / Investing in Facebook, Amazon, Alibaba, etc
What's the ruling on Short Selling in the Stock Market?
Forex Trading Halal or Haram:
It is not permissible to trade in currency except if the transaction is done on the same spot and time by giving the money and receiving it hand by hand at the same time. In Forex, you need a day or two before you can cash your money, if I am not mistaken.
And Allah Knows Best