Mr. Cooper, the largest home loan servicer in the U.S., is being bought by mortgage company Rocket in an all-stock deal valued at $9.4 billion. The acquisition will create a business representing one in every six mortgages in the United States and give Rocket almost 7 million additional clients,

The deal expands Rocket’s client base to 10 million and its data reach across U.S. homeowners. Less than a month after the mortgage giant Rocket Companies moved to absorb the real estate platform Redfin,