iPhone and iPad apps tagged "stock quotes."
Radical Math Apps for Number Nerds and Finance Geeks
It’s no secret that nerds of all varieties have a safe haven in the App Store. While much attention has been given to the glamorous nerd kingdoms of comic books and science fiction, the more practical skill set of knowing how to manipulate figures, make wise investment choices, and plot coordinates on a chart has not yet had its day in the sun.
Bloomberg is a Must Have App for Business Professionals
For financial market news, Bloomberg is second to none. The iPhone app is an excellent resource for stock quotes and business news on the go, and provides a template on how a good news service should be ported to the iPhone.