Best Mortgage Rates 30 Year Fixed Current Prime Lending Rate Prime Rate – Prime Rate History From 1979 to 2019 – hsh.com – The prime rate is defined by The Wall Street Journal (WSJ) as "The base rate on corporate loans posted by at least 75% of the nation’s 30 largest banks." It is not the ‘best’ rate offered by banks. HSH uses the print edition of the WSJ as the official source of the prime rate.Fha Mortgage Rates Texas FHA Loans McAllen TX – Get the Best FHA Mortgage Rates Now – FHA Loans in McAllen TX. An FHA loan is offered by the Federal Housing Administration to help people become homeowners. It is an insured mortgage which prevents you from experiencing any loss if you are unable to keep up payments on the loan.