U.S. existing-home sales plunged 5.5% in October 2026, falling to their lowest level in more than 16 years as a sharp increase in mortgage rates further weakened housing demand and left prospective buyers struggling with affordability. Sales of previously owned homes declined to a seasonally adjusted annual rate of 3.75 million, down 8.8% from October 2025, according to the National Association of Realtors...