ha ha..no la..the best I have ever used is called "Tiny Stock" can be dated back to palm ages, not real time but can keep track of everything, including export to excel..I am still using!!
oh? go ahead! I will buy them if you can...
that's great if you can develop something like Davy Fong's stock software, but his drawback is you cannot keep track of your stock performance and export to PC..