Treasury Rally Stalls at 4.79% as Primary Spreads Hit 187 bps

Treasury yields pushed higher for the fourth consecutive session with the 10-year climbing 4 basis points to 4.79% (FRED), while mortgage rates remained unchanged at 6.66% (Freddie Mac PMMS). This persistent divergence has compressed primary spreads to 187 basis points, marking a 4 basis point tightening from yesterday and establishing the narrowest margin in the current rate environment. The 2-year Treasury held steady at 4.39% (FRED), maintaining the yield curve steepness at 40 basis points as longer-duration securities continue to bear the brunt of selling pressure.

The relentless compression in mortgage spreads signals potential capacity constraints in the agency MBS market, with spreads now 12 basis points tighter than the 199 level observed just three trading sessions ago. Consumer sentiment remains depressed at 55.2 (U. Michigan) while initial jobless claims held at 203,000 (Latest Available), suggesting labor market resilience despite broader economic uncertainty. SOFR's stability at 3.66% indicates money markets remain well-functioning, though the spread differential between short-term funding costs and mortgage origination margins continues to narrow.

QC teams should monitor loan pipeline timing closely as these compressed spreads may trigger pricing adjustments or capacity management decisions from correspondents and wholesale channels. Risk officers should evaluate hedge effectiveness given the accelerating basis risk between Treasury hedges and mortgage pricing, particularly as primary spreads approach levels that historically precede market structure shifts.