Startup Idea: Efficient Stock Tracking and Information Filtering Software
I am self employed. I do multiple things, but the majority of my effort goes into day-trading. I do not believe that this falls under the umbrella you named as "price tracking." At least I hope not.
I am not currently satisfied with stock tracking software. The live updating of the markets and the features and filtering that they offer is not up to par. I find it harder than I believe it should be to track stocks in my portfolio and prospect stocks that I am looking into. Information gathering and filtering feels labored and tedious.
I would absolutely be willing to pay for a software that helped with this. I would prefer it being a one-time purchase over a subscription based system. I have tried finding a solution. Searching for things like "stock tracking program." I currently solve this issue by doing the legwork myself.