When you start EA provides a New Player Leader Board with various categories to help you with your ranking. You can check your standings here if your profile is six weeks old or less:
As your account matures, you might also be interested in your standings in the various network scores. You can find those Network Leader Boards here:
Once you start filling out those big boy pants, you can gander over to the Stock Market Leader Boards to see how you stack up against pros.
It might take a few days to get to the top of those lists.