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Morning Bid: The US-Iran ceasefire is unravelling

Published by Global Banking & Finance Review

Posted on May 28, 2026

3 min read

· Last updated: May 28, 2026

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US-Iran Ceasefire Unravels: Market Volatility Returns on Middle East Tensions

Market Reactions and Economic Implications

A look at the day ahead in European and global markets from Gregor Stuart Hunter

Renewed US-Iran Tensions Shake Global Markets

Stocks tumbled in Asia, oil surged and the dollar gained strength as the U.S. and Iran renewed attacks on each other and air raid sirens sounded across Kuwait, in the latest sign that an end to the conflict in the Middle East and a resumption of shipping through the Strait of Hormuz remain far off.

Oil Prices Surge Amid Escalating Conflict

Brent crude jumped 3.7% to $97.79 as Iran's Islamic Revolutionary Guard Corps said it attacked a U.S. airbase and that any further U.S. attacks would trigger "a more decisive response".

Stock Market Performance

MSCI's broadest index of Asia-Pacific shares outside Japan was down 1.8% led by South Korea's KOSPI, which was off 2.7%. S&P 500 e-mini futures were 0.3% lower, while Nasdaq e-mini futures slipped 0.7%.

Regional Security Concerns

Kuwait's army said on Thursday that its air defences were intercepting hostile missile and drone threats. The United States on Wednesday also issued new Iran-related sanctions by adding the Persian Gulf Strait Authority, a body Iran has set up to manage requests for passage through the Strait of Hormuz, to its Specially Designated Nationals list, the Treasury Department's website showed.

Economic Winners and Losers

Persistently high oil prices have created pronounced winners and losers in global markets since the conflict began.

Currency and Bond Market Movements

The U.S. dollar index, which measures the greenback's strength against a basket of six currencies, was 0.2% higher at 99.506 as investors sought safe haven assets, but the yield on the U.S. 10-year Treasury bond was up 5.1 basis points at 4.53% on revived fears of inflation.

Inflation Outlook

Underscoring the gloom, the energy shock caused by the Middle East conflict will probably have a persistent impact on inflation even if there is a solution to the war, the European Central Bank's chief economist, Philip Lane, said on Thursday in Tokyo.

European Market Opening

In early European trades, pan-region futures were down 1.1%, German DAX futures slipped 0.9% and FTSE futures were 1% lower.

Key Developments to Watch

Corporate Earnings

Earnings: SSE PLC, CD Projekt SA, Costco, Royal Bank of Canada, Dell

Economic Data Releases

Economic data: France producer prices for April

Debt Auctions

Debt auctions: Germany: 15-year and 30-year government debt; UK: 4-year, 7-year and 13-year government debt

Reporting and Editing

(Reporting by Gregor Stuart Hunter; Editing by Kate Mayberry)

Key Takeaways

  • Middle East tensions reignited, triggering a sharp jump in Brent crude (approx. +3.7%) and fueling global inflation concerns and risk-off sentiment in markets.
  • The U.S. dollar and Treasury yields rose—10‑year yield nearing mid‑4%—as investors priced in persistent inflation rather than traditional safe-haven flows.
  • ECB Chief Economist Philip Lane warned the global nature of the energy shock may amplify and prolong inflation impact across Europe, reinforcing central banks’ cautious stance.

Frequently Asked Questions

How did the US-Iran conflict impact global markets?
The renewed conflict caused stocks to tumble in Asia and Europe, oil prices to surge, and the US dollar to strengthen as investors sought safe havens.
Why did oil prices jump after the US-Iran attacks?
Brent crude surged due to renewed attacks, raising concerns about potential disruptions to shipping through the Strait of Hormuz.
What was the response of currency markets to Middle East tensions?
The US dollar index rose as investors moved to safe-haven assets amid escalating conflict.
Which stock indices experienced declines?
MSCI's Asia-Pacific index, South Korea's KOSPI, S&P 500 e-mini futures, Nasdaq e-mini futures, German DAX futures, and FTSE futures all saw declines.
What economic risks were highlighted by the European Central Bank?
The ECB's chief economist warned that the Middle East energy shock could have a persistent inflationary impact.

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