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US MBA Purchase Index Falls to 163.6, Surging Mortgage Rates Suppress Spring Buying Sentiment

2026-03-26

  1. Core Overview: The newly released US MBA Purchase Index for Q1 2026 (as of March 20) fell to 163.6, retreating significantly from the previous figure of 172.9. This means that weekly home purchase mortgage applications decreased by more than 5%, indicating that the recent rapid surge in borrowing costs has significantly suppressed the buying intentions of potential homebuyers.

  2. Key Details: In the overall mortgage market, not only did home purchase demand decline, but the total mortgage application index also plunged 10.5% in a single week. Among them, refinancing applications, which are highly sensitive to interest rates, plummeted 15%. Furthermore, to alleviate current repayment pressures, budget-constrained buyers turned to Adjustable-Rate Mortgages (ARM), pushing their share of total applications up to 8.1%.

  3. In-depth Attribution: According to the Mortgage Bankers Association (MBA), Middle East geopolitical conflicts sparked rising oil prices and inflation concerns, pushing up long-term US Treasury yields and driving the 30-year fixed mortgage rate up to 6.43%, hitting a new high since October 2025. MBA Deputy Chief Economist Joel Kan noted that worsening home-buying affordability and economic uncertainty are the core reasons forcing potential buyers onto the sidelines.

  4. Outlook and Risks: Looking at the short term (1-2 months), as long as mortgage rates remain above 6.4% and sticky inflation persists, home purchase demand during the traditional spring peak season is likely to remain suppressed, and the trend of buyers pulling back or shifting to adjustable-rate products will continue. However, in the medium term (3-6 months), if subsequent geopolitical risks cool down and the Federal Reserve regains confidence in falling inflation, causing yields to peak and retreat, the suppressed pent-up demand is still expected to be released in the second half of the year, acting as a key catalyst to support the housing market recovery.

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