It looks really nice. Can you talk about the technologies you used to build it?

Sure. The front-end is just plain old html/js/css. The back-end is Node.js, there's only two endpoints, one is searching for stocks, the other is for serving the index file. I also use the yahoo finance API to get stock prices.

Do the prices change? This looks cool.

Also, are you going to open source it?

The prices should update as they change in the real markets - it uses Yahoo Finance API for this. It's also already open source: https://github.com/mashlol/trade

You should use Yahoo data as a seed and then modify it so the user can see results (however fake) faster (or make it a togglable option)

very well done! love the UI! very responsive, has a very good native feel to it. well done!

Why is it only mobile?

I may add a web interface later, this was mostly a project I started to try to make a decent web app for mobile.