The price tag on the deal between BlackRock (BLK) and Credit Suisse (CS), announced on Thursday, was not disclosed, but two sources familiar with the matter put it at between $200 million and $300 million.

For Credit Suisse, the disposal marks another step to bolster capital in line with tough new requirements on banks after the financial crisis.

BlackRock, the world's biggest investment manager by assets, will increase its scale and distribution with this deal.