Portable LCD Stock Ticker

Alright so I've been searching the web for days now looking for the cheapest stock ticker for.my dad. If anyone has a simple design that's small and has a minimal amount of parts incase it breaks.

Something small and compact with a LCD for reading the price. Also it would need to connect to the internet for getting the price

Battery Power would be very helpful

(Edit) I already have an Arduino UNO and I'm willing to buy extra stuff to do this Project

Seems to me a cheap smartphone and some sort of app ( Best Stock Trading Apps for Android ) would do the job.

I am a buy-and-hold person so the idea of checking stock prices all day is not something of value.