Market Reaction to Trump’s Iran Warning: Stocks Fall, Oil Prices Surge

Asian markets mostly retreated and oil prices surged on Monday following U.S. President Donald Trump's warning to Iran that “the clock is ticking,” amid stalled negotiations over a lasting peace agreement between the two nations.

U.S. futures dipped more than 0.6% as investors reacted cautiously to escalating geopolitical tensions and uncertainty surrounding energy supplies.

Asian Markets Pull Back After Recent Highs

In Japan and South Korea, markets moved further away from previous highs. The Nikkei 225 in Tokyo declined 0.9% to 60,843.09, mainly driven down by technology stocks, after reaching an intraday record above 63,000 last week.

The yield on Japan’s 10-year government bond climbed to 2.8%, its highest point since the late 1990s. The rise reflects a broader shift toward higher yields as the Bank of Japan gradually increases interest rates and rising energy costs fuel inflation expectations. Just a week earlier, the yield stood around 2.55%.

In South Korea, the Kospi gained 0.9% to close at 7,558.50 after earlier trading lower. The index briefly surpassed 8,000 on Friday, supported by strong gains in technology shares tied to the artificial intelligence boom, before easing on profit-taking.

Hong Kong’s Hang Seng Index fell 1.6% to 25,543.32, while China’s Shanghai Composite edged down 0.1% to 4,132.24 following weaker-than-expected retail data for April.

Australia’s S&P/ASX 200 declined 1.4% to 8,508.40, Taiwan’s Taiex dropped 1.1%, and India’s Sensex slipped 0.6%.

Trump’s Iran Warning Sparks Energy Market Fears

Oil prices climbed sharply after Trump posted a warning to Iran on social media, saying “the clock is ticking, and they better get moving, FAST, or there won’t be anything left of them,” following a call with Israeli Prime Minister Benjamin Netanyahu.

Although Trump has previously issued deadlines to Iran and later softened his position, investors remain deeply concerned about instability around the Strait of Hormuz, one of the world’s most important energy chokepoints.

The Strait remains largely closed, with the United States enforcing a naval blockade on Iranian ports since last month. Concerns intensified further after reports of a drone strike over the weekend targeting a United Arab Emirates nuclear facility.

Brent crude oil rose 1.9% to $111.31 per barrel after trading near $70 in late February before the conflict escalated. U.S. benchmark crude gained 2.3% to trade at $107.83 per barrel.

“Re-escalation risks are increasing,” said ING commodities strategists Warren Patterson and Ewa Manthey in a market note.

The strategists noted that shipping activity near the Strait of Hormuz had recently improved slightly but warned that conditions could deteriorate rapidly depending on military developments.

Markets Also Watching U.S.-China Diplomacy

Analysts said energy markets are also reacting to the lack of concrete outcomes from last week’s summit between Trump and Chinese President Xi Jinping in Beijing.

Although both leaders emphasized the importance of keeping the Strait of Hormuz open for global trade, uncertainty remains over how China might influence Iran to reduce tensions.

U.S. officials reportedly hoped Beijing could use its relationship with Tehran to help broker peace negotiations, but no clear diplomatic breakthrough has emerged so far.

Bond Yields Rise as Investors Brace for Uncertainty

The yield on the U.S. 10-year Treasury note rose to approximately 4.63%, up from 4.47% last Thursday and significantly higher than the nearly 4% level seen before tensions with Iran intensified.

Higher bond yields often reflect investor concerns about inflation, energy costs, and broader economic instability tied to geopolitical risks.

Wall Street also ended last week under pressure. The S&P 500 fell 1.2% on Friday, ending a streak of record highs. The Dow Jones Industrial Average dropped 1.1%, while the Nasdaq Composite lost 1.5%.

Currency Markets React to Global Tensions

In currency trading, the U.S. dollar strengthened against the Japanese yen, rising to 159.02 yen from 158.62 yen. The euro edged slightly higher to $1.1626 from $1.1622.

Analysts said investors are increasingly shifting toward traditional safe-haven assets and monitoring energy prices closely as fears grow that the Middle East conflict could expand further.