Asian stocks slide as U.S.-Iran tensions flare; oil holds above $100

The stalemate remains in place. It's been a very shaky start.
A market analyst's assessment of how the U.S.-Iran conflict unfolded despite initial hopes for a breakthrough.

Along the narrow passage of the Strait of Hormuz, where a third of the world's seaborne oil must travel, the ancient contest between great powers and regional resistance played out again on Tuesday — this time with markets as the audience. A U.S. effort to escort stranded tankers through the chokepoint, branded with the optimism of a name like 'Project Freedom,' met Iranian defiance, reminding investors that geopolitical stalemates do not yield to humanitarian framing. Asian equities slipped, oil held above $100 a barrel, and the global economy absorbed yet another reminder that energy security and political conflict remain inseparable threads in the fabric of modern commerce.

  • Fresh U.S.-Iran exchanges over the Strait of Hormuz shattered early hopes that a humanitarian tanker escort would ease the standoff, sending a clear signal that the conflict's underlying logic remains unchanged.
  • Asian markets fell across the board — Australian shares down 0.4%, broader Asia-Pacific indexes off as much as 0.75% — as traders priced in the durability of the supply disruption rather than its resolution.
  • Oil retreated slightly from Monday's spike but held at levels — Brent at $113.85, U.S. crude at $105.03 — that economists treat as a threshold for genuine economic damage, keeping inflation fears alive.
  • Corporate earnings offered a rare counterweight: over 80% of S&P 500 reporters beat estimates, with AI-driven tech spending sustaining growth even as geopolitical anxiety clouded the broader outlook.
  • The Federal Reserve is now effectively boxed in — energy-driven inflation makes rate cuts politically and economically untenable, and Friday's jobs report will test whether the labor market is absorbing the pressure or beginning to crack.

Asian markets opened Tuesday to fresh turbulence from the Gulf, as renewed U.S.-Iran hostilities over the Strait of Hormuz — the narrow passage carrying roughly a third of global seaborne oil — dashed hopes that Washington's tanker escort initiative, dubbed 'Project Freedom,' might ease the standoff. Iranian resistance made clear the stalemate was intact, and markets responded with a measured but unmistakable retreat: Asia-Pacific shares fell between 0.3 and 0.75 percent, while U.S. and European futures edged lower.

Oil prices pulled back slightly from the prior day's spike but remained well above the $100 threshold that signals genuine economic stress — Brent crude at $113.85 and U.S. crude at $105.03. Analysts noted that the day had begun with cautious optimism about the humanitarian corridor, only to confirm that nothing fundamental had shifted. 'It's been a very shaky start,' one market analyst observed.

Against that backdrop, earnings season offered an unlikely counterweight. More than 80 percent of S&P 500 companies reporting had beaten both earnings and revenue estimates, with the technology sector — buoyed by relentless AI investment — carrying much of the growth. AMD and Pfizer were set to report that same day, adding another data point to a season that, so far, had outperformed expectations.

Currency markets added their own layer of complexity. The Japanese yen surged briefly before retreating, sparking speculation of government intervention — a move analysts said could cap dollar strength but was unlikely to produce lasting yen recovery. The Australian dollar softened ahead of an expected rate hike, while the U.S. dollar firmed on safe-haven demand and gold edged higher.

Looking ahead, Friday's nonfarm payrolls report loomed as the week's defining data point, with expectations modest at 62,000 new jobs — a sharp drop from March. The Federal Reserve, meanwhile, was widely expected to hold rates steady: with energy-driven inflation pressing upward from the Middle East, cutting rates was not a viable option. Geopolitical risk, markets had concluded, was no longer a temporary disruption — it had become a structural condition.

The morning markets opened to bad news from the Gulf. Stocks across Asia fell on Tuesday as the U.S. and Iran traded fresh attacks over the Strait of Hormuz, the narrow waterway that funnels roughly a third of the world's seaborne oil. The conflict had flared just as President Trump launched what his administration called "Project Freedom"—an effort to escort stranded tankers through the chokepoint and restore flow to global energy markets. It didn't work. The Iranians, as one analyst put it, weren't taking the bait.

The market reaction was swift and measured, but unmistakable. Asia-Pacific shares outside Japan fell 0.3 percent. Australian stocks dropped 0.4 percent. Futures markets in New York and Europe edged lower—the S&P 500 and Nasdaq each down about a tenth of a percent, European indexes sliding a bit more. The sting wasn't severe, but it was real. Oil prices, which had spiked the day before on supply fears, eased back slightly: Brent crude fell to $113.85 a barrel, U.S. crude to $105.03. Both remained well above the $100 threshold that signals genuine economic stress.

What made Tuesday's trading notable was the collision of two separate market narratives. One was geopolitical: the Middle East remained a live conflict zone, the Strait of Hormuz remained contested, and the humanitarian corridor Trump had pitched as a breakthrough had instead become a reminder that the stalemate was intact. Tony Sycamore, a market analyst at IG, captured the mood: the day had started with hope that the operation would succeed, at least as a humanitarian gesture. Instead, Iranian resistance signaled that nothing fundamental had changed. "It's been a very shaky start," he said.

The other narrative was earnings season. Advanced Micro Devices and Pfizer were set to report results that day. Data showed that 83 percent of S&P 500 companies that had already reported had beaten earnings-per-share estimates, and 78 percent had beaten revenue expectations. The technology sector, buoyed by continued spending on artificial intelligence, was doing the heavy lifting. Jeff Buchbinder, chief equity strategist at LPL Financial, noted that with no signs of slowdown in AI-driven investment, the sector would likely continue to carry earnings growth. This was the counterweight to geopolitical anxiety: corporate America was still performing.

Currency markets told their own story. The Japanese yen had surged briefly on Monday, touching 155.69 per dollar before settling back to 157.22. That intraday jump had sparked speculation that Tokyo was intervening to prop up its weakening currency. Finance Minister Satsuki Katayama had spoken out against speculative trading in foreign exchange, a signal that authorities were watching closely. Abbas Keshvani, an Asia macro strategist at RBC Capital Markets, said intervention could come again if the dollar-yen rate tested 160, a level Tokyo had historically defended. In 2022, he noted, the central bank had "fired three volleys of intervention in a few weeks." But intervention, he cautioned, would likely act as a ceiling on the dollar's rise, not as a catalyst for sustained yen strength.

The Australian dollar eased ahead of the Reserve Bank's interest rate decision, widely expected to include a hike. The U.S. dollar itself firmed on safe-haven demand—investors rotating toward the safest assets in an uncertain moment. Gold rose slightly, to $4,529.19 an ounce, trading within its recent range.

The week ahead held two major data points. Friday would bring April's nonfarm payrolls report, the monthly employment snapshot that moves markets. Expectations were modest: 62,000 jobs added, down sharply from March's 178,000, though seasonal adjustment issues made the forecast uncertain. The Federal Reserve, meanwhile, was expected to hold its policy rate steady through the year. The reason was straightforward: the energy shock from Middle East instability was pushing inflation upward, and the Fed couldn't afford to cut rates into that headwind. The market's calculus was clear—geopolitical risk had become a structural feature of the economic outlook, at least for now.

We started yesterday with high hopes that operation 'Project Freedom' would be a success on the ground... But as we saw, the Iranians weren't taking that bait at all. It really signifies that the stalemate remains in place, it's been a very shaky start.
— Tony Sycamore, market analyst at IG
With no signs of slowing down, AI-driven spending will likely continue to do the heavy lifting for S&P 500 earnings growth, led by the technology sector.
— Jeff Buchbinder, chief equity strategist at LPL Financial
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why did Asian stocks fall if the declines were only a fraction of a percent? That seems almost negligible.

Model

It's not about the size of the move in isolation—it's what it signals. When markets open to news of fresh military conflict in a region that controls a third of global oil shipments, and stocks immediately turn negative, that's the market saying "we're worried." The small decline reflects that traders are still hopeful, but the direction matters.

Inventor

Trump's "Project Freedom" sounds like it was supposed to solve this. What went wrong?

Model

It was framed as a humanitarian corridor to get ships through safely. But the Iranians responded with their own attacks. The administration was essentially saying "we're escorting tankers through," and Iran said "no, you're not." It revealed that the underlying conflict—the struggle for control of the strait—hasn't been resolved at all. It's still a stalemate.

Inventor

So oil prices should have spiked more, then, if supply is still at risk?

Model

They did spike the day before, when the attacks first happened. By Tuesday, prices had eased slightly because markets were digesting the news. But staying above $100 a barrel is the key point—that's the level where it starts to hurt the global economy. We're not in crisis, but we're in a sustained state of elevated risk.

Inventor

The earnings data sounds positive. Why isn't that offsetting the geopolitical worry?

Model

It is, to some degree. That's why the market didn't crater. But earnings strength is concentrated in technology and AI spending. That's real, but it's also narrow. The broader economy is being squeezed by higher energy costs, which is why the Fed isn't cutting rates. You have pockets of strength and pockets of pressure.

Inventor

What's the yen situation about? Why does Japanese currency intervention matter to a global reader?

Model

Japan's currency has been weakening—the yen is worth less per dollar. That helps Japanese exporters, but it also signals that the Bank of Japan is losing control of its own currency. When the finance minister starts warning against "speculative trading," that's code for "we might intervene." If Tokyo has to keep stepping in to defend the yen, it suggests the underlying economic pressures are real and persistent.

Inventor

So what's the actual risk here—is this a prelude to a bigger market correction?

Model

Not necessarily. The market is pricing in a world where geopolitical risk is chronic but manageable, where earnings keep growing despite energy headwinds, and where central banks stay steady. The real risk is if any of those assumptions breaks. If the Strait of Hormuz actually closes, or if earnings disappoint, or if inflation forces the Fed to act differently—then you'd see a real repricing. For now, we're in a holding pattern.

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