The Tuesday open delivered the move the prior week had been waiting for. The Sunday-evening report that the US and Iran have agreed in principle to end the war and reopen the Strait of Hormuz — with the nuclear-material question left as "TBD" — gapped bonds stronger overnight, and the gain has held through the morning open. MND's market read described the move as the cleanest peace-deal price action of the recent rumor cycle, because the framing finally separates the immediate oil/strait concern from the unresolved nuclear-program piece. The 10-year backed off Friday's 4.57% level into the open, and Bankrate's daily 30-year ticked to 6.70% on the morning print — a touch higher than Friday's 6.65% close as lender sheets reset, with the bond improvement likely to pass through over the next several sessions rather than instantly.
The week's catalyst calendar is heavy from here. Q1 GDP revision lands Thursday, core PCE — the Fed's preferred inflation gauge — lands Friday. Both are the first hard data prints of the Warsh-era Fed; PCE is the one with the biggest swing power this cycle. If PCE comes in cool, the peace-deal bond rally extends into the weekend; if it comes in hot, the rally retraces. Beyond the data calendar, the Iran story is not fully closed — the nuclear-material piece is the unfinished business, and any new geopolitical headline can move bonds before the Friday print. Two-sided risk into Friday is the right framing for any lock-versus-float conversation.
The 30-year is still pinned to the top of its 90-day band — Friday's 6.65% and today's open at 6.70% both sit within rounding of the 90-day high. But the 10-year is at the lower-middle of its same-period band (roughly 4.36% to 4.67%), so the bond-to-mortgage spread has widened more than usual this week. That widening is a passable proxy for the lag-pass-through everyone's been waiting on: when lenders work down their spread back toward normal, the mortgage rate eases independent of any further 10-year move. The clean read on Tuesday morning's bonds: there's room for the mortgage rate to ease by 10 to 15 basis points over the next several sessions even if the 10-year holds today's level.
The borrower to focus on today is the one who got quoted last week and didn't pull the trigger. Today's bond rally is the cleanest "something changed" message of the past two weeks, and the spread-compression case gives them a 10-to-15 basis-point narrative beyond just the headline rally. The action is a side-by-side: their last week's quote, today's quote post-rally, and a one-line reason. Lock posture for in-flight deals shifts toward float for anything that can wait through Friday's PCE — but the conservative play on deals closing this week is still to lock today's improvement rather than chase Friday's print. Do this today: pull every borrower who got quoted between 5/19 and 5/22 and send a "here's the new number" message with both figures and the spread-compression context.