What drives mortgage rates for the week of May 24-30, 2021


Mortgage rates are notoriously difficult to predict. They rise and fall based on market sentiment, securities and various economic indicators. Here’s a look at what could move the markets this week.

On Tuesday, a trio of statistics will be released – the S&P CoreLogic Case-Shiller Home Price Index, the Conference Board’s Consumer Confidence Index for May and new home sales data for April. The reports themselves don’t determine mortgage rates, but the statistics do reflect the state of the housing economy – which has been characterized by record inventories and soaring house prices.

The federal government’s first-quarter economic growth update and weekly jobless claims data, both due Thursday, is also on the horizon.

Calculating mortgage rates is complicated, but here’s a simple rule of thumb: The 30-year fixed-rate mortgage closely tracks the yield of the 10-year Treasury. When that rate rises, so does the popular 30-year fixed rate mortgage.

Fixed mortgage rates are influenced by other factors, such as supply and demand. When mortgage lenders have too much business, they raise rates to reduce demand. When business is light, it tends to lower rates to attract more customers.

Ultimately, the rates are set by the investors who buy your loan. Most US mortgages are packaged in the form of securities and resold to investors. Your lender offers you an interest rate that secondary market investors are willing to pay.

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