Watch it decide · Ledger #235
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· OCT 4, 2026, 9:00 PM· anthropic/claude-haiku-4.5· constitution v5
01
Inputs — what it was given
{}02
Sources read — 5 cited
- FRED · 30-Year Fixed Mortgage — 7.28 · 2026-10-01
- FRED · 10-Year Treasury — 5.24 · 2026-10-01
- FRED · 2-Year Treasury — 4.78 · 2026-10-01
- FRED · Fed Funds Rate — 3.75 · 2026-09-01
- FRED · S&P 500 — 7722.72 · 2026-10-02
03
The gate — deterministic verdict
Decision: published · computed in 11602 ms
5/5 series, all sourced and fresh.
04
Outputs — what it produced
{
"gate": {
"pass": true,
"reason": "5/5 series, all sourced and fresh.",
"confidence": 0.92
},
"market": {
"sources": [
{
"url": "https://fred.stlouisfed.org/series/MORTGAGE30US",
"asOf": "2026-10-01",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 7.28,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-10-01",
"name": "FRED · 10-Year Treasury",
"value": 5.24,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-10-01",
"name": "FRED · 2-Year Treasury",
"value": 4.78,
"seriesId": "DGS2"
},
{
"url": "https://fred.stlouisfed.org/series/FEDFUNDS",
"asOf": "2026-09-01",
"name": "FRED · Fed Funds Rate",
"value": 3.75,
"seriesId": "FEDFUNDS"
},
{
"url": "https://fred.stlouisfed.org/series/SP500",
"asOf": "2026-10-02",
"name": "FRED · S&P 500",
"value": 7722.72,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 7.28,
"prevAsOf": "2026-09-24",
"seriesId": "MORTGAGE30US",
"prevValue": 7.03
},
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "10-Year Treasury",
"value": 5.24,
"prevAsOf": "2026-09-30",
"seriesId": "DGS10",
"prevValue": 5.29
},
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.78,
"prevAsOf": "2026-09-30",
"seriesId": "DGS2",
"prevValue": 4.88
},
{
"asOf": "2026-09-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.75,
"prevAsOf": "2026-08-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-10-02",
"unit": "index",
"label": "S&P 500",
"value": 7722.72,
"prevAsOf": "2026-10-01",
"seriesId": "SP500",
"prevValue": 7666.45
}
]
},
"briefId": 267,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "7.28%",
"caption": "30-year fixed jumped 25 bps to 7.28%, the sharpest single-day move in the dataset, pushing affordability stress deeper into production pipelines."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "5.24%",
"caption": "10-year Treasury eased 5 bps to 5.24%, but failed to pull mortgages down—a sign mortgage spreads are repricing risk, not retreating."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.78%",
"caption": "2-year note fell 10 bps to 4.78%, steepening the 10–2 curve to 46 bps and reflecting a shift away from front-end rate expectations."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.75%",
"caption": "Fed funds effective rate rose 12 bps to 3.75% on the month, holding above the long-term neutral band and sustaining borrowing-cost pressure."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,722.72",
"caption": "S&P 500 closed 7,722.72, posting modest gains amid rate volatility and underscoring muted equity enthusiasm for higher-for-longer monetary conditions."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "The 204 bps mortgage–Treasury spread now prices meaningful prepayment and servicer duration risk; origination volume faces sustained compression at this level, and MSR hedges tied to lower rate paths will underperform if the curve holds steep.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2064,
"completionTokens": 384
},
"summary": "A 25 basis point mortgage pop and widening 10–2 spread signal duration rotation out of short rates as Fed policy anchors.",
"headline": "30-year mortgage tops 7.28% on curve steepening; origination headwinds intensify",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 269
}05
Proof — the hash-chained record
seq #235
row_hash 543b0a62196bdaf72e4a8297bf6bcfdf7cb47c0bcb8ce29ce1565d7de47140c1
prev_hash 89eec91c58e36075899763255615924d78176d215b494f01a5a461fcf57e776c
This exact row, with its canonical preimage, is public at /api/ledger/export. Recompute its hash with the standalone verifier — it shares no code with this site. The chain head is timestamped into Bitcoin.
Evidence or it doesn't ship.