The average U.S. 30-year mortgage rate is around a two-month low. Mortgage giant Freddie Mac said on Dec 6 that the average rate on the benchmark 30-year, fixed-rate mortgage dipped to 4.75% from 4.81% a week ago. The key rate stood at 3.94% a year ago. This fall in rates is a welcoming sign for prospective buyers, who have been suffering this year because of rising rates and affordability concerns.Due to the ongoing stock market decline, investors are parking their money in bonds, resulting in lower yields. In the week ended Dec 7, the yield on 10-year treasury has fallen below the 3% level for the first time in nearly two months. The inventory situation has started improving in some regions. On a yearly basis, Denver, Seattle, San Francisco and San Diego saw some of the largest increase in listings for October (read: Real Estate ETFs at One-Month High: Here's Why).Although mortgage rates have been on a downtrend for the last three weeks, buyers do not seem ready to enter the expensive housing markets where affordability is at the lowest level in a decade. Per, Mortgage Bankers Association's seasonally adjusted index, total mortgage volumes rose 2% last week (ended Nov 30) compared with the previous week. However, the applications are 19% lower than the year-ago volumes.Friday’s U.S. jobs data would be having an impact on mortgage rates. U.S. nonfarm payrolls increased by 155,000 last month, below the economist’s median forecast of 200,000 jobs. This weaker-than-expected jobs data would keep the bond rates and mortgage rates low as investors would expect a data-dependent Fed to hold off rate hikes next year after a highly likely fourth hike this month. Against this backdrop, we highlight the following homebuilder ETFs in detail (see: all the Industrials ETFs here):iShares U.S. Home Construction ETF ITBThis fund tracks the Dow Jones U.S. Select Home Construction Index comprising companies building residential homes, including manufacturers of mobile and prefabricated homes. There are a total of 47 holdings in the basket, with D.R. Horton Inc DHI occupying the top weight of 13.8%. The fund’s AUM is $801.2 million and expense ratio is 0.43% (read: Housing Market Facing Strong Headwinds: ETFs in Focus).SPDR S&P Homebuilders ETF XHBThis fund tracks the S&P Homebuilders Select Industry Index targeting industries like building products, home furnishings, home improvement retail, home furnishing retail and household appliances. It is an equal-weighted fund. It comprises 35 holdings and Whirlpool Corporation WHR occupies the top position with 5.3% weight. The fund’s AUM is $656.7 million and expense ratio is 0.35%.Invesco Dynamic Building & Construction ETF PKBThis fund tacks the Dynamic Building & Construction Intellidex Index targeting companies providing construction and related engineering services for building and remodeling residential properties, commercial or industrial buildings, or working on large-scale infrastructure projects, such as highways, tunnels, bridges, dams, power lines and airports. It comprises 30 holdings, and Tractor Supply Co TSCO (6.4%) is at the top. The fund’s AUM is $142.5 million and expense ratio is 0.58%.Want key ETF info delivered straight to your inbox?Zacks’ free Fund Newsletter will brief you on top news and analysis, as well as top-performing ETFs, each week. Get it free >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Whirlpool Corporation (WHR): Free Stock Analysis Report D.R. Horton, Inc. (DHI): Free Stock Analysis Report ISHARS-US HO CO (ITB): ETF Research Reports SPDR-SP HOMEBLD (XHB): ETF Research Reports PWRSH-DYN BLDG (PKB): ETF Research Reports Tractor Supply Company (TSCO): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report