On July 10, 2008, Dow agreed to purchase all of the common equity interest of Rohm and Haas Co. for $15.4 billion, which equates to $78 for each share. The buyout will be financed with equity investments of $3 billion by Berkshire Hathaway Inc. and $1 billion by the Kuwait Investment Authority. The purpose of the deal is to move Dow Chemical further into specialty chemicals, which offer higher profit margins than the commodities market and are more difficult to enter for the competition. The purchase has been criticized by many on Wall Street who believe Dow Chemical overpaid (about a 75 percent premium on the previous day's market capital) to acquire the company; however, the high bid was needed to ward off competing bids from BASF. The transaction to purchase the outstanding interest of Rohm and Haas closed on April 1, 2009