Bond Yields at Multi-Decade Highs: The Market’s Foundation Is Shifting
From the US to Japan, the UK to France, government bond yields are at their highest levels in decades. This is no longer just an interest-rate story; it means the foundation on which equities, gold, and crypto assets are priced is shifting.
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Where We Stand — September 4 Close
US: The 10-year Treasury yield closed the week at 4.78%. It reached 4.812% during the week, its highest level since November 2023; the 52-week high is 4.818%. In the short term, the 2-year yield is at 4.37%, while the 20-year is at 5.25%. The 30-year yield approached the psychological 5% threshold. The 10-year yield has risen 17 basis points over the past month and 71 basis points over the past year.
UK: The 10-year gilt closed at 5.13%; its weekly high of 5.29% was the highest since August 2007. The 30-year gilt stands at 5.78%, while the 5.89% reached during the week was the highest level since May 1998. The market is pricing in almost two rate hikes from the Bank of England by year-end.
Eurozone: Germany’s 10-year yield stands at 3.34%; the 3.39% reached during the week was the highest since 2011, while the 30-year Bund climbed above 3.84%. France’s 10-year OAT stands at 4.19% — after exceeding 4.21% during the week, it tested its highest level since November 2008, while the 30-year yield reached 4.5% for the first time since 2009. The OAT-Bund spread is 84.7 basis points. Italy is at 4.15%, Greece at 4.00%, and Spain at 3.77%.
Japan: The 10-year JGB closed at 2.91%, but on September 2 it exceeded the 3% threshold for the first time since 1996, reaching 3.027%. The 30-year yield is at 3.97%; the 4.155% reached on September 3 was the highest level since this maturity was introduced in 1999. The 40-year yield is at 4.04%, and the 2-year at 1.83%.
Global picture: Bloomberg’s global government bond yield index stands at 3.72%, its highest level since mid-2008. According to OECD data, governments and companies will borrow a record $29 trillion in 2026 in the approximately $109 trillion global bond market.
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Why Yields Are Rising
Energy-driven inflation has returned. The US-Iran conflict and the disruption in the Strait of Hormuz have pushed oil higher; Brent closed the week at $96.28, while WTI closed at $91.48. Rising oil prices and sharper increases in fuel prices are pushing both inflation and government borrowing costs higher around the world. The average diesel price in the US has reached a record level.
The fiscal outlook is deteriorating. US debt has exceeded $40 trillion; the debt-to-GDP ratio of G7 countries is above 100% except for Germany. The federal deficit for fiscal 2026 is projected at approximately $1.9 trillion. In Japan, Prime Minister Sanae Takaichi’s expansionary fiscal agenda and record budget requests from ministries are pushing yields higher; in the UK, rising borrowing costs are increasing pressure on Chancellor of the Exchequer Rachel Reeves to implement spending cuts or tax increases in the November budget.
Central-bank pricing has shifted. The market is now pricing the possibility of additional tightening rather than cuts. August nonfarm payrolls came in at 162,000 versus expectations of 55,000, while the previous two months were revised upward, strengthening the possibility of a September rate hike; futures markets priced this probability at 57% at the start of the week and 58% later in the week. Fed Chair Kevin Warsh’s reiteration of his commitment to controlling inflation accelerated the selloff, while Governor Christopher Waller said he would support keeping rates unchanged if the August data confirms continued progress. In Japan, the policy rate is at 1%, and the market is revising the terminal rate from 1.5% to 1.75% or higher.
Competition for capital is intensifying. Borrowing for AI infrastructure has pushed global corporate bond issuance to a record $4.9 trillion in 2026 — up 14% from the same period last year. Data centers, semiconductors, and energy financing are competing for the same pool of investors as government issuance.
The structural inflation thesis is strengthening. Investors view the shift from globalization toward protectionism, tariffs, reshoring, and increased defense spending as signs that inflation will remain structurally higher than in the 2010s. This represents a structural shift that is pushing term-premium demand higher.
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Impact on Asset Classes
Equities. Higher yields reduce the present value of future earnings and hit growth stocks whose cash flows are concentrated further in the future the hardest. On Friday, the S&P 500 closed at 7,718.60, down 0.38%; the Dow fell 0.51% to 53,414.25, while the Nasdaq declined 0.29% to 26,506.99. On a weekly basis, however, the S&P 500 gained 0.1% and the Nasdaq 0.4%, while the Dow fell 0.3%. Year-to-date, the Nasdaq is up approximately 14%, the S&P 500 13%, and the Dow 11%. The sharp selloff on the first day of the month — 419 points in the Dow and 1.03% in the Nasdaq — had already demonstrated how sensitive equities are to bond-market moves.
Gold. Higher real rates increase the cost of holding a non-yielding asset. Accordingly, spot gold fell to $4,432 on September 4 and is approximately 21% below the record $5,589 reached on January 28. However, the picture is not one-directional: the metal is still 23% more expensive than a year ago and has gained 4.4% over the past month. Geopolitical risk and fiscal uncertainty support gold, while yield competition weighs on it — the price is caught between these two forces.
Dollar and yen. USD/JPY closed at 156.26. The exchange rate fell sharply from 160 on September 1 to 155.80 on September 3; the yen gained approximately 2.4% over the week. Behind this move are not only rising JGB yields and expectations of a September BOJ rate hike, but also explicit pressure from US Treasury Secretary Scott Bessent: Bessent said he expected the Japanese government and BOJ to take further steps to strengthen the yen and conveyed to Tokyo the need for a clear roadmap on fiscal sustainability and rate hikes. EUR/USD stands at 1.1614.
Crypto assets. Crypto is behaving like a macro asset in this cycle. As of September 6, Bitcoin is around $79,900, with a market capitalization of $1.60 trillion; its 24-hour trading range is $79,459-$80,147. BTC is up approximately 2.2% on the week and 24% on the month — its 25% gain in August was its best monthly performance since 2017. It remains 37% below the $126,080 peak recorded in October 2025. The correlation is clear: when yields fell and Fed concerns eased, BTC rose more than 5% on September 3, breaking above $81,000; when August employment exceeded expectations, it fell below $80,000. Technically, the $75,000-$76,500 area is important support, while $81,000-$86,000 represents a broad resistance zone. Glassnode analyst Frederik Theissen describes the market as range-bound and points to rising bond yields as the key risk factor ahead.
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What Is the Real Risk?
The danger is not the level of yields but the reason behind the rise. A 4.80% yield driven by strong growth can be absorbed by equities; a 4.80% yield driven by fiscal uncertainty and an inflation premium is much harder to absorb. Today’s move is closer to the second category.
Fiscal dominance spiral. As yields rise, interest expenses increase; as expenses increase, deficits widen; as deficits widen, issuance rises, pushing yields higher again. Once this cycle begins to be priced in, governments lose room to maneuver. The UK and France are currently at the center of this test.
The Japan channel. A Japanese institutional investor who can earn 3% domestically has less incentive to take currency risk and hold US or European bonds. The repatriation of capital means one of the world’s largest bond buyers is stepping away from the market. This is why Japan’s long-term bond auctions are now being watched as a global stress test; weak demand could push borrowing costs higher from Tokyo to Washington.
Correlation breakdown. In a traditional portfolio, bonds provide protection when equities fall. During inflation-driven selloffs, both can decline simultaneously, triggering simultaneous position reductions across risk-parity and balanced-fund strategies. Once forced selling begins on the leveraged side, the move can become self-reinforcing — the breakdown in UK pension funds in 2022 is the closest example.
Emerging markets. Countries running twin deficits are particularly vulnerable. When the global risk-free rate rises, borrowing costs and capital-outflow risks increase simultaneously; when debt, deficits, and external financing needs overlap, markets can react sharply.
For crypto, the risk comes through the liquidity channel. Price action over the past two months confirms that Bitcoin is being priced less as an inflation hedge and more as a high-beta liquidity asset: it rises rapidly when yields retreat and is among the first assets sold when yields rise.
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What to Watch This Week
US markets are closed Monday for Labor Day. On Wednesday, the 10-year Treasury auction will take place; Thursday brings PPI and weekly jobless claims, while Friday brings the month’s most important data point, CPI — expectations are for a 0.4% monthly increase in headline CPI and 0.2% in core CPI.
Alongside these, demand at Japan’s long-term bond auctions, the Strait of Hormuz and oil prices, France’s budget process, and the UK’s November budget will be the main price drivers in the coming weeks. In short, the direction of the market is now being determined not by earnings season, but by the bond desk.
This content is not investment advice.