Mortgage Rates Slip to 6.47% as Iran Ceasefire Eases Treasury Yields

The average 30-year fixed mortgage fell to 6.47% for the week ending June 18, the lowest in over a month. The five-basis-point drop followed a U.S.–Iran memorandum extending a ceasefire and opening a 60-day window for a permanent nuclear deal, easing Treasury yields.

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President Donald Trump and Iranian officials signed a 14-point provisional agreement calling for an immediate cease-fire, reopening the Strait of Hormuz, limits on enriched-uranium stockpiles, and limited access to frozen assets. The pact aims to curb Middle-East energy-supply shocks feeding inflation.

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• 30-year fixed mortgage 6.47% (down from 6.52%); 15-year 5.81% (down from 5.84%).

Mortgage rates hit lowest in a month as Iran framework eases Treasury yields

• 10-year Treasury yield 4.44%–4.456% across sources; pending home sales up 3.8% in May and 4.8% YoY; federal funds rate steady at 3.50%-3.75% after 12-0 vote.

Mortgage rates hit lowest in a month as Iran framework eases Treasury yields

Freddie Mac chief economist Sam Khater said recent data show a resilient consumer, with stronger retail sales and pending home sales indicating modestly improving demand. The Federal Reserve, chaired by Kevin Warsh, kept the benchmark rate unchanged, citing elevated inflation driven partly by energy-supply shocks. U.S. and Iranian officials called the memorandum a “temporary framework” toward a permanent nuclear solution and normal oil flows.

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Conservative analysts warned the deal offers Iran concessions without immediate nuclear dismantlement. Redfin’s Chen Zhao said “the markets have entered a new era,” suggesting rates are unlikely to fall further soon. Realtor.com’s Anthony Smith called the negotiations “more promising” than prior rounds but warned the “path will likely be rocky.” NAR chief economist Lawrence Yun called mortgage rates above 6% “the new normal,” highlighting affordability challenges.

Mortgage rates hit lowest in a month as Iran framework eases Treasury yields

Sources differ on the post-deal 10-year Treasury yield, citing 4.44%, 4.45% and 4.456%. No source gives a clear timeline for how long the yield relief will sustain lower mortgage rates.

Mortgage rates hit lowest in a month as Iran framework eases Treasury yields

• “Incoming data continues to reflect a resilient consumer, with retail sales improving and pending home sales strengthening, suggesting purchase demand is continuing to modestly improve,” — Sam Khater, Freddie Mac chief economist

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• “The previous weeks have been filled with constant back-and-forths, showing progress toward a resolution, only to be followed by heightened military action,” — Anthony Smith, senior economist, Realtor.com

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• “Chen Zhao, head of economic research at Redfin, told CNN the markets have entered “a new era,” saying mortgage rates probably won’t drop much anytime soon.” — Chen Zhao, head of economic research, Redfin

Mortgage rates hit lowest in a month as Iran framework eases Treasury yields

• “Analyst John Kilduff of Again Capital said only a full restart of Hormuz flows would solve the problem.” — John Kilduff, analyst, Again Capital

Mortgage rates hit lowest in a month as Iran framework eases Treasury yields

The ceasefire extension gives negotiators 60 days to finalize a permanent nuclear pact, while the Fed’s next policy meeting will test whether inflation eases enough for further rate cuts. Housing market participants will watch for sustained yield declines, renewed oil-flow stability, and any geopolitical shifts that could reshape borrowing costs.

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