MBS Continue to Outperform as Auctions Weigh on Treasuries

First off, bonds are doing fine this morning.  10yr yields are technically higher on the day, but only when compared to yesterday’s 5pm levels.  As far as most trade desks are concerned, 3pm is the closing time for Treasuries, and against that benchmark, we’re slightly stronger on the morning.  MBS are stronger still, almost certainly because they don’t have to concern themselves with the digestion of $183bln of new issuance over the first 2 days of the week (unlike Treasuries). With that in mind, keep an eye on today’s auction results (typically 1:02pm, despite the 1pm official time). Bonds will either be seeing some post-supply relief, or simply locking into whatever the pre-Fed positioning trade may be.

Bonus chart: Labor Differential (a metric inside the consumer confidence numbers that shows the spread between those who view jobs as being plentiful vs those who say jobs are “hard to get”). It’s hard to see in the chart, but that 9.40 reading is up slightly from last month.  

Correspondent, Buy Before You Sell, Verification Cascade Tools; Conventional Conforming Changes

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Lowest Rates in a Year. Tomorrow’s Fed Announcement Could Push Them in EITHER Direction

Rates have been flirting with long term lows over the past 2 weeks, but today made it official.  Today’s average top tier 30yr fixed rate perfectly matched that seen on September 16th, 2025.  That’s the lowest it’s been since September 2024, and we’re so close to those lows that it’s just as fair to say rates are the lowest they’ve been in over 3 years.  Today’s move didn’t come in response to anything specific. In fact, most of the justification for it was seen in yesterday’s trading session and simply didn’t have an opportunity to impact the average lender until this morning.  Incidentally, there are similar vibes this afternoon as bonds have once again improved too late in the day for most lenders to go to the trouble of adjusting mortgage rates. That means that if bonds (upon which rates are based) manage to hold their current levels through tomorrow morning, rates could be a bit lower again tomorrow.  Of course, after that, there’s a fair amount of potential volatility associated with the Fed announcement at 2pm ET.  We already know the Fed will be cutting rates tomorrow and that rate cut has no bearing on what happens to mortgage rates going forward. Rather, it would be the tone of the Fed’s press conference, or the nature of any changes in the Fed’s bond buying policies (something that might be included in tomorrow’s statement). Bottom line: rates are already low today. The Fed rate cut won’t make them go any lower.  Other info from the Fed could make them go EITHER higher or lower, depending on what’s said.  

Bonds Improve After Treasury Auctions

Bonds Improve After Treasury Auctions

Treasury auctions don’t always cause a reaction in bonds, but they did today. This has less to do with the results being remarkable and more to do with the fact that there were two big auctions on a Monday (as opposed to the typical auction schedule that plays out Tue-Thu) as well as the fact that there’s not much else going on in terms of data due to the shutdown. In hindsight, we can see the market likely built in a small concession ahead of these auctions, and the concession was traded back out after the auction results printed. One final way we know the auctions are having an impact is via the outperformance of MBS. Since MBS aren’t weighed down by a big glut of new supply, they were free to outperform both 10 and 5yr Treasuries–something like probably would not have happened so decisively in the absence of the auction cycle. 

Econ Data / Events

m/m CORE CPI (Sep)

0.227% vs 0.3% f’cast, 0.3% prev

m/m Headline CPI (Sep)

0.3% vs 0.4% f’cast, 0.4% prev

y/y CORE CPI (Sep)

3.0% vs 3.1% f’cast, 3.1% prev

y/y Headline CPI (Sep)

3.0% vs 3.1% f’cast, 2.9% prev

m/m SUPERCORE

.351 vs .330 prev

Market Movement Recap

10:01 AM Modestly weaker overnight with some additional selling after 9:30am NYSE open. MBS down 2 ticks (.06) and 10yr up 1bp at 4.029

01:19 PM Stronger both before and after 5yr Treasury auction.  MBS up 1 tick (.03) and 10yr down 2bps at 3.999

Pre-Fed Consolidation, Pre-Auction Concession

As the shutdown continues, econ data remains sparse. This makes for smaller, more range-bound movement overall with last week making a decent case to established the floor of the current range in Treasury yields. A good-but-not-good-enough CPI helped seal the deal on Friday, but the impending Fed announcement is just as relevant.  The market has already priced in the 25bp cut and has moved on to the next consideration: a dovish vs hawkish press conference. Combine that uncertainty with the need to underwrite the week’s accelerated Treasury auction cycle (Mon/Tue as opposed to the normal Tue-Thu) and it’s completely forgivable to see 10yr yields respecting a floor of 3.97 after briefly challenging it last week.