Mortgage Rates Spike to 6.38%, Stalling Spring Housing Boom

The spring homebuying season, typically a frenzy of activity, ground to a halt in March 2026 as mortgage rates climbed sharply, according to the Realtor.com Weekly Housing Trends report for the week ending March 26. The average 30-year fixed mortgage rate jumped to 6.38%, up 16 basis points from 6.22% the prior week and approaching levels not seen in five months, per Freddie Mac data. This spike, driven by the escalating Iran war, reversed a late-2025 surge in activity and cooled buyer enthusiasm across the sector[1][4]. Existing-home sales tumbled 8.4% month-over-month and 4.4% year-over-year, while new home sales fell 1.7% from February and 3.8% from March 2025, the Mortgage Economic Review for March reported. Despite the slowdown, home prices edged up 1.4% to 1.8% year-over-year, though median list prices dipped 1.9% from the prior year—the 22nd straight week of flat or negative growth. Price per square foot also slid 2.5% year-over-year[1][3]. Inventory offers a silver lining for cautious buyers: homes for sale rose 7.8% year-to-date, surpassing 2025 levels, though the pace of recovery has slowed, Realtor.com economists noted. On March 16, Optimal Blue pegged the 30-year conventional rate at 6.190%, up 15 basis points weekly, with 15-year loans at 5.515%. For a $300,000 loan, that translates to $360,766 in interest over 30 years versus $141,655 on a 15-year term[2]. Geopolitical shocks exacerbated the rate climb, with the Federal Open Market Committee holding the federal funds rate at 3.50%-3.75% after its January 27-28 meeting. The next FOMC gathering on March 17-18 brought no immediate relief, leaving rates hovering above 6%—a threshold experts call 'good' in today's environment. Jumbo loans hit 6.417%, up 13 basis points weekly[2][4]. Buyers who lock in now could benefit from softening prices, but rising rates threaten to prolong the stall. Realtor.com warns that while inventory growth favors purchasers, affordability erosion from higher borrowing costs—potentially dipping only if the Fed cuts rates later in 2026—keeps many sidelined. The sector's fate hinges on global stability and Federal Reserve moves[1][2].