BOND ROUT5 min read
Treasury yields hit 24-year highs in global bond rout
The 10-year Treasury yield touched about 5.34% and the 30-year 5.683% this week, both 24-year highs, in a global bond sell-off that also hit UK and Japanese debt.
The US 10-year Treasury yield touched about 5.34% this week, the highest since 2002, and the 30-year 5.683%: both 24-year highs, in a global bond sell-off.
The 10-year anchors mortgage rates, company borrowing costs and stock valuations, and this push came from war and energy, not just the Fed: bonds couldn’t hold a rally even on weak jobs data.
Watch Iran and the , the Fed on 28 October (traders see about a 17% chance of a hike) and whether the 10-year breaks this week’s high of about 5.34%.
The trader’s angle
The 10-year yield anchors mortgage rates, company borrowing costs and stock valuations — and this time the push is coming from war and energy, not just the Fed.
The chart
The US 10-year yield over ten years.
US 10Y
10-year Treasury yield, week's high
about 5.34%
upHighest since 2002Pushed past 5.2% as the week began; around 5.26% in early afternoon New York trading on Friday.
30-year Treasury yield, week's high
5.683%
up24-year highBroke through 5.5% at the start of the week; near 5.62% in early afternoon New York trading on Friday.
UK 30-year gilt yield
Briefly above 6%
upFirst time since 1998Briefly topped 6% on Thursday 1 October — a sign the sell-off is global, not just American.
Japan 2-year yield
1.975%
upHighest since March 1995Reached on Monday 28 September. Japan's 30-year yield stood at 4.18% on 1 October.
A is what the US government pays to borrow. Short-dated yields mostly track where traders expect the Fed’s to go. Long-dated yields add something else: the , the extra return investors demand for tying up money for decades while inflation, government borrowing and geopolitics can all change.
When those risks rise, investors pay less for long bonds, so their yields climb. And long bonds feel it most because of : for the same rise in yield, a 30-year bond loses several times as much value as a 2-year note.
What happened
US government bonds are at the centre of a global sell-off. This week the 10-year yield climbed to about 5.34%, the highest since 2002, and the 30-year to 5.683%; both were 24-year highs.
The selling accelerated as the week began. On Saturday 26 September, President Trump rejected Iran’s conditional ceasefire proposal, which would have reopened the Strait of Hormuz, the narrow sea lane that carries a large share of the world’s seaborne oil. With energy supplies still squeezed, inflation risk stayed high, and the 10-year pushed past 5.2% and the 30-year through 5.5%. On Wednesday, a stronger-than-expected report and inflation still well above the Fed’s 2% target added to the pressure.
Yields fell back on Thursday, giving up some of their gains. On Friday they whipsawed around a weak US jobs report: lower at first, then higher. In early afternoon trading in New York the 10-year was around 5.26% and the 30-year near 5.62%.
The backstory
The US-Israeli war with Iran began on 28 February, and inflation picked up in its wake. Headline was 3.4% in August, well above the Fed’s 2% target. On 16 September the Federal Reserve raised rates for the first time since 2023, to a 3.75%–4.00% range, and pencilled in one more hike before the year is out.
But the long end is pricing more than the Fed’s next move. Sell-offs led by long-dated bonds are usually about the : the extra reward investors demand for lending for decades when inflation, energy prices and debt levels are all hard to forecast.
And this isn’t only an American story. The UK’s 30-year yield briefly topped 6% on Thursday for the first time since 1998. In Japan, the 2-year yield hit 1.975% on Monday, its highest since March 1995, and the 30-year stood at 4.18% on Thursday. Bond yields are whipsawing across the world’s big markets at once.
How it ripples through markets
From a rejected ceasefire to 24-year highs
- 1
Ceasefire rejected
President Trump turns down Iran's conditional proposal, which would have reopened the Strait of Hormuz.
- 2
Energy stays squeezed
With no deal to reopen the strait, energy supplies stay tight, keeping upward pressure on inflation that is already well above the Fed's 2% target.
- 3
Investors demand more to lend long
upTerm premiumInflation eats into the value of a bond’s fixed payments, so buyers want a bigger to hold decades-long debt while inflation is this uncertain.
- 4
Long-dated yields break out
up10y Treasury yieldThe 10-year pushes past 5.2% and the 30-year past 5.5%; the 10-year goes on to touch about 5.34%, the highest since 2002.
- 5
Borrowing costs climb
upLong-term borrowing costsMortgage rates and company borrowing costs, which key off long-dated yields, are likely to follow, and a higher weighs on stock valuations.
Why it matters for traders
Long-dated yields are the price of money for the whole economy. Mortgage rates and company borrowing costs key off them, so a 24-year high in the 10-year feeds through to anyone buying a home or refinancing debt. They also anchor the investors use to value shares: the higher it is, the less future profits are worth today. That is a headwind for stock valuations, even though the Nasdaq touched a record on Friday while yields briefly dipped.
Watch the shape of the curve, not just the level. If long-dated yields lead a sell-off — a — the market is worrying about inflation, supply and risk rather than just the next Fed hike, and that is much harder for a central bank to fix. Friday showed how much more than the Fed is in play: a weak jobs report cut the odds of an October hike, yet by early afternoon both the 2-year and 10-year yields were higher on the day.
For anyone holding bonds, is the risk. The 30-year has the most of it, so it loses the most for every that yields rise. In a market this jumpy, position size matters more than conviction.
What to watch
First, Iran and the Strait of Hormuz. A revival of ceasefire talks that reopened the strait would ease the energy squeeze that set off this week’s acceleration; further escalation would do the opposite. Because that kind of news can break at the weekend, when markets are shut, it carries .
Second, the Fed on 28 October. Officials pencilled in one more hike this year, but after Friday’s jobs report traders gave an October move only about a 17% chance. The long end will care as much about what the Fed says on inflation as about the decision itself.
Third, the levels. This week’s high of about 5.34% on the 10-year, and 6% on UK 30-year gilts, are now the levels to watch. Many experts expect long-term yields to stay higher for longer, citing sticky inflation, war-driven energy prices and rising corporate debt.
Academy lessons for this story
- F9Fiscal policy, debt and bond supplyExplain deficits and debt, project debt against GDP, and say why heavy government borrowing pushes up long-term interest rates.
- R5Supply, auctions and relative valueTell whether a government bond auction went well, explain why the newest bonds yield a little less, and say how heavy borrowing moves the curve.
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Sources
- Quartz — US Treasury yields surge to 24-year highs
- CNN — Treasury yields and the bond market
- CNBC — Treasury yields fall from multiyear highs
- CNBC — Trump rejects Iran's conditional ceasefire proposal, WSJ reports
- CNBC — Fed's preferred gauge showed core inflation at 3.0% in August, much lighter than expected
- CNBC — Daily Open: bond yield whiplash
- CNBC — U.S. Treasury yields rise despite September jobs report
Written by the JuniorTrader desk with AI assistance, from the reports above. Intraday levels are snapshots and may have moved since. Not investment advice.
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