Homebuilders tumble as mortgage rates hit 7-month high
Iran war tensions push bond yields higher, dealing blow to spring housing market
Homebuilder shares extended their decline on Friday as mortgage rates surged to a seven-month high, threatening to derail what is typically the industry's strongest selling season. The sudden rise in borrowing costs comes as geopolitical tensions in the Middle East have pushed bond yields higher, reducing buyer purchasing power just as the spring housing market kicks into gear.
The average 30-year fixed mortgage rate climbed to 6.22% on Friday, up from levels below 6% through the first two months of 2026, according to Bankrate data. Freddie Mac reported the rate at 6.11% for the week ending March 12, a notable increase from 6% the prior week. The spike follows a broader rally in government bond yields, with the 10-year U.S. Treasury exceeding 4% in March as bond markets faced unusual selling pressure amid the Iran conflict.
"Fixed mortgage rates are closely tied to government bond yields, particularly longer-term bonds like the 5-year and 10-year government bond yields," according to financial analysis. "When bond yields rise, it becomes more expensive for lenders to borrow money, and these increased costs are typically passed on to borrowers in the form of higher fixed mortgage rates."
The homebuilding sector has been under pressure for weeks. Lennar, the largest U.S. homebuilder by revenue, has fallen from approximately $122 in February to $95.51 as of Friday's close, trading below both its 50-day moving average of $112.25 and 200-day average of $118.44. The company's quarterly earnings declined 52.6% year-over-year, with revenue down 5.8%, according to market data.
Other major builders have suffered similar declines. Toll Brothers dropped 12.97% over a 10-day period, losing about $1.5 billion in market value during a nine-day losing streak. The stock closed at $138.07 on Friday, well below its 52-week high of $168.36 reached on February 12. NVR, the luxury homebuilder, experienced a nine-day losing streak with cumulative losses of 14%, wiping out approximately $3.1 billion in market capitalization and hitting a 52-week low on March 12. KB Home saw its stock decline 11.5% over 10 days, while PulteGroup's backlog has declined an average of 18.9% year-over-year over the past two years.
The unusual bond market reaction stems from the Iran conflict, which began February 28 when the United States and Israel conducted airstrikes targeting Iranian leadership and military infrastructure. Iran retaliated with missile and drone strikes and closed the Strait of Hormuz, a critical chokepoint for global oil shipping. The disruption has sent oil prices higher and sparked inflation concerns that have outweighed the traditional safe-haven demand for bonds during geopolitical crises.
"The current Iran conflict has presented a different scenario," analysts noted. "Bond markets have experienced selling pressure, and yields have risen. This atypical behavior is primarily attributed to the significant inflation risk stemming from soaring oil prices caused by disruptions to oil supplies and shipping routes."
For homebuilders, the timing is particularly challenging. Spring typically represents the peak selling season, with families seeking to move during summer months. Higher mortgage rates reduce how much homebuyers can afford, potentially pressuring order volumes and margins at a time when builders were hoping for a rebound after two years of declining backlogs. NVR's backlog has declined 17.5% on average over the past two years, according to recent analysis, while KB Home reported Q4 2025 revenues down 15.3% year-over-year.
With analysts maintaining consensus buy ratings on several major builders despite recent declines, investors will be watching upcoming earnings reports closely for signs of how higher rates are affecting order activity. KB Home is scheduled to release first-quarter earnings after market close on March 24, which could provide an early read on spring selling season conditions.