The U.S. housing market gained $2.4 trillion over the last year, according to a new Redfin report. Homes in suburban areas saw their values increase by more than 5.6%, which is more than homes in city centers. We add it all up. Plus, Apple has lost market share in China and is pushing an update to mobile operating systems in Europe. Then, lessons in life — and economics — courtesy of an HBCU marching band director.