Duncan paid $775,000 for the property in June 2003. The 1,646-square-foot house was built in 1900 in the Capitol Hill North neighborhood.
Day is the chief technical officer of The Motley Fool, a multimedia financial-services company.
Before Motley, he was the vice president of application software and analytics at In-Q-Tel. He also was vice president of information technology at ProFund Advisors, and founding employee and vice president of systems development at the innovative financial-services firm FOLIOfn.
He received his bachelor's degree in electrical engineering from the University of Notre Dame and a master's degree in management of information technology from the University of Virginia's McIntire School of Commerce.
According to BlockShopper.com, there were 4,155 home sales in Washington in 2008, with a median sales price of $375,000.
Address: 1006 Massachusetts Av NE
Buyer(s): Scott D Day
Seller(s): Stephanie K Duncan
Sale date: Sep. 22, 2009