T3 Sixty’s T3 Home Demand Index the interest levels and activity of homebuyers and represents housing demand in a specific metros and counties. The monthly index determines demand using a variety of MLS data, including real estate professional viewings of listings, consumer showing reservations, home-access software and third-party web traffic. The index has launched in the Mid-Atlantic region in partnership with the nation’s second-largest MLS, Bright MLS, and will expand to other regions.