Merger would create largest U.S. home builder

AP Photo/Damian Dovarganes

Lennar said that it has agreed to buy Arlington, Va.-based home builder CalAtlantic for $9.3 billion in cash and stock, including $3.6 billion in assumed debt. The combined company would have a market cap of around $18 billion.

Why it matters: The merger would create the country's largest home builder by revenue.