there are different things you need to learn for building a stock trading platform, and some parts of it are rather expensive than the rest, but if you are stuborn enough well than welcome to the crazy town man, i myself has been trying to do it, but unfortunately i am in india and the regulations are quite strict here then other countries like UK or US even canada. It is a very long and detailed process but if you are interested please just drop a comment &quot;I STILL WANNA KNOW&quot; and i will elaborate the whole process.