Rising Rates Channel Mortgage Applications Tank 7.1% as Interest Rates Surge Ben Hernandez October 22, 2018 As interest rates continue to ascend, the cost to finance the purchase of a home or for an existing homeowner to refinance gets more expensive. CNBC’s Diana Olick reports on mortgage applications falling. For more investment strategies, visit the Rising Rates Channel. RELATED TOPICSBanksfederal funds rateFederal Reserveinterest ratesRates