I have a dumb question... I've been investing with Vanguard for several years now (Target Date Roth IRA and taxable VFINX), and when I rolled over my previous employers 401k into a regular Vanguard IRA, it created a Brokerage Account. I also noticed that below the names of my Roth and VFINX, it says "Upgrade" and this appears to lead to the making of a Brokerage account.
So my dumb question is: What is the difference between what I have now and a Brokerage account? Is it just letting me diversify under the same account? Are there additional fees to do so?
Thanks for your help and patience with this newbie question. Also, if anyone knows of a way to rename the accounts, let me know. :) Seeing my name three times is not exactly helpful in figuring out which account is which.