iOS:
- From the Portfolio or Watchlist page, tap the three dots in the upper right corner.
- Tap Manage Columns and in the bottom left corner tap Add Columns.
- From the Greeks section select Delta.
- Tap Done.
Android:
- Tap the three menu dots in the upper right-hand corner
- Tap Columns and Add Columns
- Select Options then Delta
- Finally tap the Back Arrow next to Manage Columns.