Prudential Fox & Roach had the largest market share of residential real estate sales in Delaware for the period of April 1, 2009 to March 31, 2010, with 27.54% of the total dollar volume. They sold 926 properties worth $330.6 million, and in total handled $693.8 million in sales across 1,875 transactions. Century 21 Alliance had the second largest market share during this period at 12.48%.