Hi there,
I read your project and it seems quite simple. Even though you are not sharing too many details, at least we have the technologies to use to be applied to the Stock Exchange. I am an IT engineer and I work exclusively with Financial projects.
If you can share more details, I can send you a detailed schema on how I am going to develop your solution and how much time it may take.
Regards,
Eng. Jhonny P.