The Daily BriefTUESDAY, SEPTEMBER 15, 2026 · autonomous · AI-generated

Mortgage-Treasury Spread Widens as 30-Year Fixed Ticks Higher

The 30-year fixed mortgage climbed 5 bps to 6.76% while the 10-year Treasury rose only 1 bps, pushing the mortgage-Treasury spread to 179 bps.

Lending Conditions Index
49/ 100
Tight
▬ holding
30-yr fixed
6.76%
10Y–2Y curve
0.32pp
Fed funds
3.63%

Lending conditions read 49/100 — Tight, holding. 30-year fixed at 6.76%, the 10Y–2Y curve flat.

The call · #103· track record 19/28 held→
6.76%
30-Year Fixed Mortgage
30-year fixed mortgage rose 5 bps to 6.76%, outpacing Treasury moves and signaling tighter origination economics.
4.97%
10-Year Treasury
10-year Treasury rose only 1 bps to 4.97%, keeping the long end relatively flat on the day.
4.65%
2-Year Treasury
2-year Treasury climbed 2 bps to 4.65%, holding the 10–2 curve at a modest 32 bps.
3.63%
Fed Funds Rate
Fed funds rate held steady at 3.63% as of early August, anchoring the policy backdrop.
7,619.98
S&P 500
S&P 500 closed at 7,619.98, providing context for portfolio performance but not directly moving mortgage pricing on the day.

What it means for your shop

Lenders face compression in origination margins as the spread widens—a sign that secondary-market pricing is penalizing mortgage risk relative to Treasuries, likely reflecting prepayment concerns and portfolio hedging costs. Refinance incentive remains nil at these levels.
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Not financial advice. Generated autonomously from public Federal Reserve data.

The numbers, flat

What did Ryan Colkitt's daily brief call on 2026-09-15?
Lending Conditions read 49/100 (Tight). Lending conditions read 49/100 — Tight, holding. 30-year fixed at 6.76%, the 10Y–2Y curve flat.
What was the 30-Year Fixed Mortgage on 2026-09-10?
6.76% — source: FRED (MORTGAGE30US).
What was the 10-Year Treasury on 2026-09-14?
4.97% — source: FRED (DGS10).
What was the 2-Year Treasury on 2026-09-14?
4.65% — source: FRED (DGS2).
What was the Fed Funds Rate on 2026-08-01?
3.63% — source: FRED (FEDFUNDS).

Machine-readable provenance ↗ · ledger #124

the brief's track record19/28 held · 68% the record →
  1. OCT 5 · from 2026-09-22tightened

    “Lending conditions read 44/100 — Tight, holding. 30-year fixed at 6.95%, the 10Y–2Y curve flat.”

    Lending Conditions moved from 44/100 to 41/100 (-3).

  2. OCT 5 · from 2026-09-23tightened

    “Lending conditions read 45/100 — Tight, holding. 30-year fixed at 6.95%, the 10Y–2Y curve flat.”

    Lending Conditions moved from 45/100 to 41/100 (-4).

  3. SEP 28 · from 2026-09-15tightened

    “Lending conditions read 49/100 — Tight, holding. 30-year fixed at 6.76%, the 10Y–2Y curve flat.”

    Lending Conditions moved from 49/100 to 44/100 (-5).

  4. SEP 28 · from 2026-09-17held

    “Lending conditions read 45/100 — Tight, tightening. 30-year fixed at 6.95%, the 10Y–2Y curve flat.”

    Lending Conditions moved from 45/100 to 44/100 (-1).

  5. SEP 21 · from 2026-09-08tightened

    “Lending conditions read 51/100 — Thawing, holding. 30-year fixed at 6.71%, the 10Y–2Y curve flat.”

    Lending Conditions moved from 51/100 to 45/100 (-6).

  6. SEP 21 · from 2026-09-10tightened

    “Lending conditions read 50/100 — Thawing, holding. 30-year fixed at 6.76%, the 10Y–2Y curve flat.”

    Lending Conditions moved from 50/100 to 45/100 (-5).

  7. SEP 14 · from 2026-09-01tightened

    “Lending conditions read 52/100 — Thawing, holding. 30-year fixed at 6.66%, the 10Y–2Y curve flat.”

    Lending Conditions moved from 52/100 to 50/100 (-2).

  8. SEP 14 · from 2026-09-03held

    “Lending conditions read 51/100 — Thawing, holding. 30-year fixed at 6.71%, the 10Y–2Y curve flat.”

    Lending Conditions moved from 51/100 to 50/100 (-1).