Reading the yield today
Who can push back, a yield you build yourself, why it stood at 5.3% on 30 September 2026, and what to watch.
The machine from note 1.1, all of it at once: six causes, the 10-year in its three parts at today’s split of 5.29%, seven places it reaches, two currents backThe whole machine, from note 1.1
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Builds on note 1.5, Where the yield ripples. Every term is defined where it first appears, and the words this note defines are collected at the end.
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01 the levers
Who can push back, and what it costs.
Every lever on the yield has a price, and someone else pays it.
| lever | what it does to the 10-year | how fast | what it costs |
|---|---|---|---|
| the Fed’s rate | moves the expected path. Cuts lower the short end; the long end follows only if the market believes inflation stays tamed | at once on the short end; the long end only as fast as the market believes the Fed | cut too soon and inflation, then the term premium, can rise; hike too far and growth falls |
| the Fed’s balance sheet (the bonds it owns) | buying long bonds (QE) lowers the term premium; letting them run off (QT) raises it | weeks to months | critics argue that large purchases blur the line between monetary policy and financing the government; the Fed has used them in downturns and crises |
| what the Treasury sells | selling more bills and fewer long bonds leaves fewer long bonds to absorb, which lowers the term premium | each quarter’s refunding, the Treasury’s announcement of what it will sell | more debt to roll over every few months, so the budget takes short rates as they come |
| the deficit | smaller deficits mean fewer bonds, and a lower premium for the risk that the government’s finances go wrong | years | higher taxes or lower spending, now |
| the market itself | high yields draw buyers who lock them in (pensions, insurers, savers), and slow the economy, which lowers the expected path: the brake | months | the slowdown is the mechanism: fewer jobs, less investment |
“How do you prevent it” has three answers, one per episode. Keep inflation believed to be under control: in 1979–81, restoring lost belief cost rates near 20% and two recessions.12 Keep public finances believed to be sustainable: the UK lost that belief in days in 2022.14 Keep supply and communication steady: the 2023 move partly reversed when the Treasury changed what it sold.13 None is free, so every move in the yield is also an argument about who pays.
02 build a yield
Build a yield.
Set the two parts and watch the ripple.
FIG 1 puts the whole machine in one place. Set the average short rate expected over the next ten years and the term premium; their sum is the 10-year. The cards show what it does, against today, to a mortgage, a note already owned, Costco, the government’s interest bill, a bank’s bond book (the bonds it owns) and a saver. The presets put both parts where they were on four dates.
30-year mortgage, $400k
$2,737/mo
7.28% · same as today
as today
a 10-year note bought today
no change
its market value
as today
Costco
no change
share value, the growth its price assumes held
as today
US interest, once rolled over
no change
on $31.45tn held by the public
as today
a bank’s $100bn bond book
no change
duration 5 years
as today
a saver, $10,000 in bills
$427/yr
at 4.27% a year
savers earn more than today
03 october 2026 · as of 30 sep
October 2026: why 5.3%.
Everything above, applied to one year, and to the lines you will read about it.
This section is dated. The notes before it describe the machine and stay true; this one records where it stood on 30 September 2026.
FIG 2 is the year in one picture. The Fed cut three times between September and December 2025, yet the 2-year barely moved, 3.56% to 3.48%: the cuts were priced in beforehand (note 1.2). From March 2026 oil jumped, and the 2-year turned up as the market priced the cuts out, then a hike in. The 10-year climbed with it while the breakeven barely moved: the rise was real yields and term premium. On 16 September the Fed hiked for the first time since 2023.9
Lines you will read, decoded
Rates commentary has its own shorthand. Typical lines about the 10-year: first what each one means, then whether the data agreed on 30 September.
| you will read | what it means | true now? (30 Sep 2026) |
|---|---|---|
| “The 10-year fell 5 basis points today” | A basis point is a hundredth of a percentage point, so 5 basis points is 0.05. A falling yield means bond prices rose: lenders paid more for the same payments (note 1.1). | Can’t check here: 1 October is after this snapshot. The 30 September close was 5.29%. |
| “Lower yields open the door to a stock rally” | When the 10-year falls, the return buyers ask of shares falls too, so future profits are worth more today and share prices tend to rise, most for companies whose profits lie far ahead (note 1.5). But if yields fall because a recession is coming, profits fall too (note 1.5). | Partly. Through the discount rate alone, a one-point fall adds +22% to Costco. But this year stocks rose while yields rose, because growth led. Since April, stocks and yields have moved opposite, weakly (note 1.5’s FIG 2 at −0.17). A tendency, not a rule. |
| “The odds of a hike at the next Fed meeting fell” | Traders bet on the Fed’s next move with futures; their prices give the odds. Lower odds of a hike mean a lower expected path for the Fed’s rate, which pulls the 2-year and the 10-year down (note 1.4). | Not checked: futures-based odds are a data product this page doesn’t republish. |
| “A soft jobs report would pull yields lower” | Weak hiring means less spending and less pressure on prices, so lenders expect the Fed to cut sooner. The expected path falls, and yields with it (note 1.4). | Fits the mechanism. Latest: payrolls (jobs on employers’ books) rose 162,000 in August; the unemployment rate (the share of people looking for work who can’t find it) was 4.1%.6 |
| “Easing in the Gulf takes pressure off oil” | Less risk to shipping means cheaper oil. Cheaper oil means prices rise more slowly, which lets the Fed hold back and can ease yields (note 1.4). | So far, partly: Brent was $114 on 29 September, below the $138 April peak.5 |
| “The 10-year’s move is parabolic” | “Parabolic” describes the chart’s shape: a steep climb that keeps getting steeper. It says nothing about why the yield moved; the causes are in note 1.4. | A description, not a cause. The 10-year is up 1.13 points in a year, to its highest since 2002. |
| “Washington is issuing too much debt” | More government bonds for the same buyers means lower prices and higher yields, mostly through the term premium; the debt loop can feed it (note 1.4). | Fits. The term premium rose from 0.50 to 1.02. The model can’t say how much of that is supply and how much is uncertainty. |
| “Investors want more compensation for inflation” | Pay for expected inflation shows in the breakeven, the gap between ordinary and inflation-protected yields (note 1.3). Pay for the risk that inflation surprises sits in the term premium. | Not in expected inflation: the breakeven was 2.36% at both ends of the year. If this is at work, it is in the term premium. |
| “The Fed is raising rates again” | The Fed sets the overnight rate. A hike lifts the short end, and if lenders expect more hikes, the expected path and the 10-year too (notes 1.2 and 1.4). | Yes: up 25 basis points on 16 September, to 3.75–4.00%.9 |
| “The term premium is rising” | The term premium is extra pay for locking money up for ten years. It rises when the future looks less certain (notes 1.3 and 1.4). | Yes, on the Kim–Wright estimate: 0.50 → 1.02.3 |
| “Bonds are competing for capital” | When safe bonds pay more, every riskier investment, stocks, startups, factories, must promise more to attract money (note 1.5). | Yes: a 3-month bill pays 4.20%, and TIPS pay 2.93% a year above inflation. |
| “The 10-year is in the danger zone”, with lines drawn on a chart | Lines on a chart are technical analysis: reading future prices from the shapes of past ones. It is a different method, and it says nothing about causes. | Not on this map: this notebook explains causes and does not forecast levels. |
The data supports most of the usual causes, but not the inflation line, and turns confident links into tendencies. Each line watches something real; the map says which part of the yield it is about, and what would show it true.
04 what to watch
What to watch.
Nine numbers, and the question each one answers.
No single number says which loop is winning. Together they show which part of the yield is moving, which (note 1.5) decides what the move means. Each card is a year of weekly closes (the last reading of each week), today in yellow.
2-year yield
the expected Fed path over two years
rising: more hikes or fewer cuts expected
DGS2
10-year yield
the benchmark itself
which part moved? read the next four
DGS10
10-year minus 2-year
the shape of the curve
steepening from the long end: term premium or supply; from the short end: cuts coming
DGS10 − DGS2
real 10-year (TIPS)
the real cost of money
rising: growth or a firm Fed
DFII10
10-year breakeven
inflation compensation
rising: inflation fears; flat this year
T10YIE
term premium (Kim–Wright)
the price of lending long
rising: supply, uncertainty, fiscal doubt
THREEFYTP10
30-year mortgage
where it meets households
the spread over the 10-year is housing’s own risk
MORTGAGE30US
Brent crude
the war’s route into prices
rising: pressure on inflation and on the Fed
DCOILBRENTEU
broad dollar index
the world’s pull on the dollar
rising: money moving into dollars
DTWEXBGS
For a stock holder, read the gauges in this order:
| ask | gauge | if yes |
|---|---|---|
| 1. is the 10-year rising? | 10-year | share prices are pulled down: buyers ask a higher return, so future profits are worth less today, most for companies whose profits lie far ahead (note 1.5) |
| 2. is the rise in the real yield, with the breakeven flat? | real 10-year, breakeven | the growth kind (note 1.5): a strong economy may lift profits enough to offset the higher rate |
| 3. is the rise in the breakeven or the term premium? | breakeven, term premium | the strain kind (note 1.5): inflation or risk is driving it, nothing lifts profits, and shares tend to fall |
| 4. do stocks and yields move together? | note 1.5’s FIG 2 | above zero: growth news leads; below zero: inflation and rate news lead |
Four events matter too: the Fed’s meetings, eight a year, with a statement and, four times a year, officials’ projections of their rate; the monthly jobs and inflation reports, which move the expected path; the Treasury’s quarterly refunding, which sets supply; and the auctions, where a weak result (a yield above what the market expected) is the term premium showing in real time.
05 the words
The words in this note.
Every term this note defines, in the order it appears.
| word | what it means |
|---|---|
| balance sheet | Here, the bonds the Fed owns. |
| refunding | The Treasury’s quarterly announcement of what it will sell. |
| bond book | The bonds a bank owns. |
| payrolls, unemployment rate | Jobs on employers’ books; the share of people looking for work who can’t find it. |
| technical analysis | Reading future prices from the shapes of past charts. |
| closes | The last reading of a day or a week. |
Every term in the notebook, with the note that explains it, is in the notebook’s glossary.
sources read 2026-10-01
hover, tap or focus · every number above is in here
Sources · 10 references
Every series was downloaded from FRED on 1 October 2026 (unadjusted CPI on 2 October), and the filings from EDGAR the same day; both are kept as a snapshot with the post. Every number on the page is computed from that snapshot or quoted from the sources below. Each source is marked peer-reviewed or not. Nothing here is advice: the post explains; it does not recommend.
- Board of Governors of the Federal Reserve System (2026). Selected Interest Rates (H.15): market yields on US Treasury securities at constant maturity, 1-month to 30-year (DGS1MO … DGS30), 10-year TIPS (DFII10), the federal funds target range (DFEDTARL, DFEDTARU; DFEDTAR before 2008) and the effective rate (FEDFUNDS); the broad dollar index (DTWEXBGS, H.10). Retrieved from FRED, Federal Reserve Bank of St. Louis, 1 October 2026. Data, not peer-reviewed. fred.stlouisfed.org/series/DGS10
- Kim, D.H. and Wright, J.H. (2005). An arbitrage-free three-factor term structure model and the recent behavior of long-term yields and distant-horizon forward rates. Finance and Economics Discussion Series 2005-33, Federal Reserve Board. The model behind the term premium used here; the Fed’s updated estimate is FRED’s THREEFYTP10. A working paper, not peer-reviewed. federalreserve.gov/pubs/feds/2005/200533
- Federal Reserve Bank of St. Louis (2026). 10-year breakeven inflation rate (T10YIE): the 10-year Treasury yield minus the 10-year TIPS yield. FRED, retrieved 1 October 2026. Data, not peer-reviewed. fred.stlouisfed.org/series/T10YIE
- US Energy Information Administration (2026). Crude oil prices: Brent, Europe (DCOILBRENTEU), daily; and WTI spot (WTISPLC), monthly. Retrieved from FRED, 1 October 2026. Data, not peer-reviewed. fred.stlouisfed.org/series/DCOILBRENTEU
- US Bureau of Labor Statistics (2026). Consumer price index for all urban consumers, not seasonally adjusted (CPIAUCNS, retrieved 2 October 2026), the unemployment rate (UNRATE) and nonfarm payrolls (PAYEMS, retrieved 1 October 2026), from FRED. Inflation is computed here as the change from the same month a year earlier, as BLS reports it; October 2025 has no index, because no prices were collected during the shutdown. Data, not peer-reviewed. fred.stlouisfed.org/series/CPIAUCNS
- Federal Open Market Committee (2026). Federal Reserve issues FOMC statement, 16 September 2026. The 25-basis-point increase to 3.75–4.00%, the 12–0 vote, and the quoted assessment of productivity and investment. Not peer-reviewed. federalreserve.gov/newsevents/pressreleases/monetary20260916a
- Federal Reserve History (2013). The Great Inflation, 1965–1982; and Oil shock of 1978–79. federalreservehistory.org, essays by Federal Reserve staff. Not peer-reviewed; the source of the 1979–81 events: the revolution in Iran, Volcker taking office in August 1979, and the recessions that followed. federalreservehistory.org/essays/great-inflation
- US Department of the Treasury (2023). Quarterly Refunding Statement of Assistant Secretary for Financial Markets Josh Frost, 2 August 2023 (the gradual increases in auction sizes), and the statement of 1 November 2023 (increases continuing “at a more moderate rate in longer-dated tenors”). Not peer-reviewed. ; jy1864 home.treasury.gov/news/press-releases/jy1671
- Bank of England (2022). Bank of England announces gilt market operation, 28 September 2022; and Financial stability buy/sell tools: a gilt market case study, Quarterly Bulletin 2023. The 130-basis-point rise in 30-year gilt yields over three days of trading, the forced selling by LDI funds, and the purchases. Not peer-reviewed. bankofengland.co.uk/quarterly-bulletin/2023
- Freddie Mac (2026). Primary Mortgage Market Survey: 30-year fixed rate mortgage average in the United States (MORTGAGE30US), weekly. Retrieved from FRED, 1 October 2026. Data, not peer-reviewed. fred.stlouisfed.org/series/MORTGAGE30US
To verify before publication: Costco’s 30 September close against Koyfin. Checked against their own pages on 2 October 2026: the FOMC statement of 16 September 2026, the BLS releases for August 2026, the Treasury’s statements of 2 August and 1 November 2023, the Bank of England’s case study, the Federal Reserve History essay, and every series against a fresh recomputation. Not sourced, and so not stated as numbers: the market-implied odds of a hike, and the average maturity of the government’s debt.
documentation
- FRED: the 10-year Treasury yield (DGS10): The series the post is about, daily since 1962, from the Fed's H.15 release.
- TreasuryDirect: marketable securities: What bills, notes and bonds are, and how long each lends for.
- the Federal Open Market Committee: Where the Fed sets the federal funds rate: its meetings, statements and projections.
- TreasuryDirect: TIPS: Treasury Inflation-Protected Securities, whose yield is a real yield.
- the Kim–Wright term structure model: The Fed's page for the model and its published term premium estimates.