This morning a broad U.S. stock market sell-off in pre-market trading triggered a steep decline in bond yields. As Bloomberg reports, this pushed debt instrument prices to their highest levels since the beginning of 2025. The 10-year Treasury bonds yield fell to 4.504%, approaching the psychological barrier of 4.5%, which had previously served as support for traders investing in the debt market. The yield on 2-year Treasury bonds dropped to 4.17%, reducing the 10y-2y spread to 0.335% (the difference between 10-year and 2-year bond yields had peaked at the beginning of January, surpassing 0.4%).

What does this mean for mortgage rates?

Falling Treasury Yields And Mortgage Rates

The 10-year Treasury bond yield is commonly used as a benchmark for determining fixed mortgage rates, 30-year fixed mortgage rates in particular. When it falls,  mortgage rates typically decline as well, since  lenders use the yield as a key reference for pricing long-term loans.

The yield’s decline to 4.504% and nearing a ‘psychological barrier’ of 4.5%, should bring rates down to reflect the lower cost of borrowing in the broader bond market.

The ‘psychological barrier’ isn’t an official or technical threshold, it refers to a rate marker that has symbolic and practical significance to investors, analysts and traders. It influences market sentiment and decision-making.

About Yield Spread And Mortgage Pricing

Mortgage rates are priced based on the yield of risk-free Treasuries + a risk premium. With declining yields, the cost of financing mortgages reduces (assuming the risk premium remains stable).

The narrowing 10 year to 2 year spread (0.335%) suggests the market expects slower economic growth or reduced inflation, which can further push mortgage rates down.

Is It Time To Buy?

Falling Treasury yields may make mortgages slightly more affordable, reducing monthly payments for borrowers considering a home purchase. Even a small reduction in mortgage rates can improve housing affordability, especially in a high-cost environment.

But keep your eye on rates. While lower Treasury yields do lead to lower mortgage rates much of the time, lenders may hesitate to cut rates too aggressively right now if volatility persists or if they anticipate a rebound in yields. So home buyers should be tracking yield movements and locking in rates at the right time.