Global Bond Rout Deepens as US-Iran Conflict Stirs Inflation Fears
TREE NEWS reports: Global bond markets are experiencing one of the most violent selloffs in decades. Following renewed US-Iran military exchanges and a surge in oil prices, inflation concerns and rate hike expectations have intensified, pushing yields on US, Japanese, and Australian government bonds to multi-year or multi-decade highs. Asian equities have come under severe pressure, with South Korea’s KOSPI plunging 4% and Japan’s Nikkei 225 dropping 3%.
What Happened
The US military confirmed a series of strikes against Iran, which retaliated with missile attacks on a US air base in Jordan. This broke weeks of relative calm and reignited fears of supply disruptions through the Strait of Hormuz. Brent crude rose 1% to $95.61 per barrel, having already surged nearly 6% the previous day, while diesel prices hit four-month highs and European gas reached their highest since 2023.
The yield on the US 10-year Treasury climbed to 4.81%, the highest in nearly three years, approaching the critical 5% psychological level. Japan’s 10-year yield broke above 3% for the first time since 1996, and Australia’s 10-year reached 5.25%, the highest since 2011. European bond markets were also hit hard, with German bund futures falling to their lowest since 2011 and French OAT futures at record lows.
Market Impact Analysis
The dual shock of geopolitical tension and rising yields is squeezing risk assets globally. The MSCI Asia Pacific index fell 2%, with tech heavyweights like SK Hynix and Samsung Electronics dropping over 4%. European futures also pointed lower.
Rising energy prices are compounding already elevated inflation, prompting markets to price in more aggressive central bank action. Fed funds futures now imply a 70% probability of a September rate hike, while swaps fully price a European Central Bank move on September 10 and a Bank of Japan action on September 18. Australia’s central bank is seen with a 65% chance of hiking on September 29.
“The market’s weak sentiment this morning clearly stems from the dual pressure of renewed Hormuz Strait concerns and rising global bond yields,” said Homin Lee, senior macro strategist at Lombard Odier Singapore.
Beyond geopolitics, the bond selloff is also driven by massive debt issuance from tech giants funding AI infrastructure. “Hyperscale tech companies are willing to borrow at higher rates, pushing up yields across maturities,” noted Naka Matsuzawa of Nomura. “AI-driven productivity gains need to translate into higher wages for economies to handle higher rates.”
Key Takeaways for Investors
- Bond yields may overshoot: Saxo’s Charu Chanana warns that investors are demanding higher inflation and fiscal risk premiums, making a break above 5% on the 10-year Treasury increasingly likely before buyers return.
- Fiscal vulnerable countries are hit hardest: Japan, the UK, and France are particularly exposed due to their debt trajectories and policy constraints.
- Equities face headwinds: Higher yields increase discount rates on future earnings, pressuring long-duration tech stocks and other growth assets.
- Watch for dip-buying at 5%: Bloomberg strategist Mark Cranfield notes that traders may step in near the 5.02% level seen in October 2023.
As the situation evolves, investors should brace for continued volatility across asset classes, with energy prices and geopolitical headlines likely to drive sentiment in the near term.
