The Iran Deal Changed Rates. The Fine Print Matters More.

That depends on how much lower you expect them to go and how quickly. Mohtashami's framework is clear: the path back requires the 10-year Treasury yield to move through several thresholds, each requiring specific economic conditions. The first threshold, where financing conditions meaningfully improve, requires the conflict to fully resolve and oil supply chains to normalize. The second, more impactful threshold requires labor market softening and Fed tone shift. Neither of those is guaranteed or imminent. East Valley home values and demand tracker data are currently at multi-year highs. Waiting for a lower environment that may take months to materialize, if it materializes at all, has a real cost in a market where inventory is running at 0.89% growth. Team Cassels can model what different scenarios look like for your specific situation.

The 10-year Treasury yield is the return on US government bonds with a 10-year maturity. Mortgage rates are not directly set by this yield, but they are closely correlated because both reflect long-term risk and inflation expectations in the bond market. When the 10-year yield rises, mortgage financing costs tend to rise as well, though the relationship is not 1-to-1. The difference between mortgage rates and the 10-year yield is called the spread. When spreads are wide, mortgage costs are higher than the yield alone would imply. When spreads are narrow, as they have been recently, mortgage costs track the yield more closely. Understanding both the yield and the spread is how analysts like Mohtashami track where financing conditions are heading.

The data does not support it. Mohtashami addressed this directly using the new listings data. New listings in 2021, when financing costs were dramatically lower, were actually lower than new listings in 2025 and 2026. If the lockdown theory were correct, the reverse should be true: more listings at lower rates, fewer at higher rates. That is not what the data shows. People sell for life reasons, including death, divorce, job relocation, retirement, upsizing, and downsizing, regardless of what rate they hold. The East Valley new listings data reflects this. Inventory is tight, but it is tight because of supply-demand dynamics and population growth, not because of a universal financial deterrent to selling.

The Fed funds rate and mortgage rates are not the same thing, though they are connected through investor expectations. The Fed controls the overnight lending rate between banks. Mortgage rates are set by the bond market, specifically the 10-year Treasury yield and mortgage-backed securities pricing. The Fed being hawkish affects mortgage rates indirectly: it signals that short-term rates will stay elevated, which makes bond investors demand higher yields on longer-term instruments as well, pushing the 10-year up and mortgage costs up with it. When the Fed eventually signals a pivot, even before actually cutting, bond markets typically react quickly. For East Valley buyers, what matters most is monitoring the 10-year yield and spread data, not waiting for a Fed press conference.

Modestly, yes. Two consecutive years of wage growth outpacing home price appreciation means the ratio of income to home cost has improved slightly. This is confirmed by both Case-Shiller and FHFA data, both of which show year-over-year price growth running below wage growth nationally. In the East Valley specifically, the combination of wage growth from the expanding tech and healthcare sectors and moderating price appreciation has made the qualifying math somewhat more favorable for buyers who have seen their incomes grow. The bigger variable remains financing costs, which affect the monthly payment more directly than the purchase price. A mortgage advisor who builds your pre-approval around current qualifying income and current market pricing gives you the most accurate picture of where you stand today.