Key Takeaways Citigroup will launch an $80B portfolio offering for wealth clients, managed by BlackRock.BlackRock will use Aladdin Wealth tech to support C's bankers with risk and portfolio insights.Some Citigroup Investment Management staff will join BlackRock to continue portfolio management.Citigroup Inc. (C) has announced a new customized portfolio offering for its global wealth clients, appointing BlackRock, Inc. (BLK) to manage approximately$80 billion in assets. The offering, Citigroup Portfolio Sol ...