The following objects dosupport Group-Level Rollups:
Financial Accounts: You can use Group-Level Rollups to display the total balance, total market value, and total cost basis of all the financial accounts that belong to a group.
Action Plans: You can use Group-Level Rollups to display the number of action plans, the number of completed action plans, and the completion percentage of all the action plans that are associated with a group.
Opportunities: You can use Group-Level Rollups to display the total amount, expected revenue, and weighted amount of all the opportunities that are related to a group. Verified References:
1: Salesforce Financial Services Cloud Implementation Guide, page 80.
2: Salesforce Financial Services Cloud Implementation Guide, page 81.
3: Salesforce Financial Services Cloud Implementation Guide, page 82.