"Active" Global Trading Account
The active trading account (the account from which all trading activity will occur for all widgets in the application) is selected at the top right. You will see the Purchasing Power and OTE/MVO for the active trading account.
OTE (Open Trade Equity) / MVO (Market Value of Options)
Note: Simulated and Live accounts are color-coded for easy identification. Green = Simulated; Yellow = Live
Your Current Balance, or Purchasing Power, is important, as it tells you whether your account balances will cover any open positions you have.