The sell-off spanned the United States, Europe, and Asia, sending government borrowing costs soaring and equities lower across every major session. Thirty-year UK gilts reached their highest yield since 1998, Japan’s 10-year government bond touched a 30-year high of 3 percent, and the US 30-year Treasury stood just under 5.3 percent — near levels last seen in 2007.
Treasury Yields Reach Crisis-Era Levels
US Treasury yields climbed to their highest point since the 2007-08 financial crisis, with the 30-year bond yielding just under 5.3 percent and the 10-year note also touching a crisis-era peak. The simultaneous rise across maturities and geographies signals a broad repricing of sovereign debt rather than a country-specific concern.
In the United Kingdom, the 30-year gilt yield hit its highest level since 1998, and the 10-year surged to financial crisis territory. Japan’s 10-year yield breaking through 3 percent reflects additional anxieties about planned massive government spending, which could expand bond issuance at a time when demand is already fragile.
Oil Rally Compounds Inflation Pressures
The catalyst for Tuesday’s acceleration was a renewed flare-up in the US-Iran conflict. Oil prices jumped close to 5 percent, with Brent North Sea crude rising 4.6 percent to $94.65 per barrel and West Texas Intermediate climbing 5.2 percent to $90.22. The Strait of Hormuz remains closed by Tehran, while Washington maintains a counter-blockade of Iranian ports — leaving energy supply routes constrained after six months of war.
Susannah Streeter, chief investment strategist at Wealth Club, noted that “with Trump now threatening further action against Iran, including against Kharg Island, Iran’s key oil export hub, supply worries are once again front and centre.” The threat to the export terminal keeps a floor under crude prices and sustains the inflationary impulse.
Adam Sarhan of 50 Park Investments framed the dual threat plainly: “Inflation is already above the Fed’s expectations” and rising oil prices are worsening that picture. “That likely means the Fed will have to wait longer before it can cut rates (and) it might have to raise rates.”
Eurozone data compounded the pressure. Official figures showed inflation in the currency bloc hit a three-year high at 3.3 percent in August, hardening expectations that the European Central Bank will raise rates next week. Patrick O’Hare at Briefing.com noted that the “steady uplift for sovereign bond yields has stirred competition concerns for stocks, as well as general growth concerns.”
Equities Slide Worldwide
The coordinated rise in bond yields dragged equities lower across every major session. Wall Street’s S&P 500 fell 0.7 percent to 7,631.47, the Dow dropped 0.8 percent to 52,766.88, and the Nasdaq shed 1.0 percent to 26,099.77. European benchmarks posted similar declines, with Frankfurt’s DAX down 1.1 percent to 25,970.11, Paris’s CAC 40 off 0.4 percent to 8,301.85, and London’s FTSE 100 slipping 0.3 percent to 10,789.28.
Asian markets followed suit. Tokyo’s Nikkei 225 fell 0.2 percent to 66,215.34, Hong Kong’s Hang Seng dropped 0.9 percent to 25,329.73, and Shanghai’s Composite closed down 0.2 percent at 3,979.89. The yen weakened to 160.24 against the dollar despite Treasury Secretary Scott Bessent telling CNBC he expected Japan to support the currency — which has lost half the gains made in a historic joint intervention after hitting a 40-year low. His comments were seen as a signal for the Bank of Japan to tighten monetary policy this month.
In a rare bright spot of corporate news, fast-fashion retailer Shein raised $1.7 billion in its Hong Kong initial public offering, though shares slumped as much as 10 percent during trading before paring losses to close nearly flat.
What Happens Next
Attention now shifts to incoming US economic data ahead of the Federal Reserve’s September 16 policy meeting. The jobs report and consumer price index release will likely determine whether the central bank holds or hikes. Bets on a rate increase surged after Fed Chair Kevin Warsh delivered a hawkish speech on Friday, and Tuesday’s data already showed slowing manufacturing growth and job openings below expectations.
The combination of elevated oil prices, multi-decade-high bond yields, and sticky inflation leaves the Federal Reserve and its global counterparts with little room to maneuver. If energy prices remain elevated through the Strait of Hormuz standoff, the bond sell-off could deepen further — testing whether equity markets can withstand sustained competition from risk-free Treasury yields at crisis-era levels.
— Hiro Tanaka, markets desk, AXO News