One of the biggest mortgage lenders in the U.S. said it would pay $1.75 billion to buy a well-known real-estate brokerage. The deal, once it goes through, could have major consequences for millions of home buyers.

Mortgage lender Rocket Cos. has agreed to acquire online real estate brokerage Redfin in an all-stock deal valued at $1.75 billion. The transaction, announced Monday, gives one of the nation's largest mortgage lenders an in-house network of more than 2,

Rocket Companies said on Monday it would acquire real estate listing platform Redfin in an all-stock deal valued at $1.75 billion, seeking to boost its lending business. Rocket's $12.50 per share offer equates to a near 115% premium to Redfin's Friday close.