Mortgage applications fell 2.2% in the week ending July 3, driven by a 4% drop in refinancing amid high borrowing costs. The 30-year fixed mortgage rate slightly increased to 6.58%. Purchase applications declined 1%, with government-backed loans showing mixed changes. Rates remain above 6% due to economic uncertainty linked to geopolitical tensions and inflation concerns. Mortgage rates are influenced by the 10-year Treasury note yield.