Find SMA in the Buying Power section of Portfolio Balances.
To see the SMA value:
- Tap the Account menu icon (head and shoulders) in the top left of the app.
- In the dashboard at the top of the menu, tap All Balances.
- Expand the Buying Power section to see SMA.
Find more information in IBKR Mobile for Android and IBKR Mobile for iOS Users' Guides.