Asia's long-standing ability to absorb turmoil in the Strait of Hormuz is fading. After months of drawing down strategic reserves and cushioning consumers from the worst effects, the region's oil importers are finding their buffers nearly gone. A shock that once seemed manageable is now poised to hit harder.
Policymakers from Tokyo to Jakarta are watching crude prices approach $100 a barrel again. Goldman Sachs warns that oil could reach $120, citing intensifying attacks on shipping through the Strait of Hormuz and the Red Sea as the most likely trigger for a fresh price spike. Goldman economist Daan Struyven flagged the risk that supply-chain disruptions are broadening and intensifying.
Not everyone agrees that the renewed strikes between the US and Iran mark a turning point. Rystad Energy's Jorge León is skeptical that either side is escalating meaningfully or that conditions have materially shifted over the past two weeks.
Still, a conflict that President Trump once predicted would last only weeks is approaching its seventh month, and tight oil supplies pose a clear danger to Asia's import-dependent growth models. Just as troubling: the region's toolkit for absorbing another Middle East oil shock is far more depleted than it was the first time around.
Fiscal room is shrinking
Through much of 2026, Asian governments and investors bet the Iran war would be short-lived. Hopes that cooler heads would prevail in Washington and Tehran haven't materialized. Trump, facing a war sliding into quagmire territory ahead of November's congressional elections, appears increasingly eager to find an exit. His poll numbers have slumped into the low 30s as even Republicans grow uneasy about the war and a shaky economy—a striking reversal for a president who campaigned on extracting the US from foreign conflicts, only to start one it may not be able to win.
As oil prices climb again, Asian governments are confronting subsidy budgets already strained by the crisis's first phase. India, Indonesia, and the Philippines spent heavily defending their currencies and cushioning consumers from fuel price spikes. Bangladesh is grappling with severe power shortages. There is simply less fiscal room left to absorb another oil shock, particularly if shipping disruptions worsen with no end in sight.
A resurgent US dollar isn't helping. Its strength is compounding inflation risks across Asia as local currencies weaken. The region is bracing for Friday's US inflation report, which could all but lock in a Federal Reserve rate hike next week.
“A hot CPI print would all but seal a September hike and underpin a firmer US dollar,” says Elias Haddad, global head of markets strategy at Brown Brothers Harriman. “A cooler reading would strengthen the case for a hold and leave the dollar vulnerable to a dovish Fed repricing.” For now, markets—and governments—are bracing for the hotter outcome.
China's fragile resilience
The picture is more complicated than a simple oil shock. Until now, China's economic resilience has masked weakness elsewhere in the region. Its exports surged 25% year-on-year in August alone, marking a fifth straight month of growth in US-bound shipments despite tariffs—now up an annualized 6.1% for the year.
“We expect this trade resilience to persist, supporting our above-consensus export growth forecast this and next year,” says Oxford Economics economist Sheena Yue.
But China's “K-shaped” economy—strong exports paired with weak domestic activity—leaves its role as the region's growth engine more fragile than it appears. Trump's latest round of tariffs, including against Canada, combined with higher oil prices, could dampen demand for Chinese goods and strain its $20 trillion economy. Should overseas appetite for China's tech and AI-related exports fade, the ripple effects would slow growth across Asia.
Japan's bond market strain
Rising global bond yields—especially in Japan and the US—pose a further risk. In Tokyo, a volatile yen has markets on edge ahead of next week's Bank of Japan policy meeting, with the currency surging on expectations of a September 18 rate hike and the possibility of intervention by the Ministry of Finance beforehand.
The bigger story may be Japan's bond market, where 10-year yields have hit three-decade highs near 3%. With the worst debt-to-GDP ratio of any major economy—roughly 260%—and a shrinking population, Japan can ill afford today's higher-inflation environment. Add Prime Minister Sanae Takaichi's plans for increased spending and tax cuts, and investors have ample reason to sell Japanese assets.
“Higher JGB yields look to have been driven by the combination of fiscal deterioration concerns stemming from the government's growth-oriented spending plans and inflationary pressures arising from developments in the Middle East,” says Morgan Stanley MUFG economist Koichi Sugisaki, warning that rising long-term rates could raise debt-servicing costs and feed a negative loop of worsening fiscal sustainability concerns.
It's possible, he adds, that the Takaichi administration is now more focused on containing upward pressure on long-term rates—particularly the inflation risk tied to a weakening currency.
Global markets are keenly aware of how sharp yen moves can ripple outward, which helps explain why US Treasury Secretary Scott Bessent recently coordinated with Tokyo on a joint yen-boosting operation—the first of its kind since 1998—aimed at discouraging Japan from selling US Treasuries to defend its currency.
Stabilizing the $32 trillion Treasury market may prove far harder: With US national debt topping $40 trillion and Trump pushing to curb the Fed's independence, fears of a run on Treasuries prompted Bessent to launch a large-scale buyback program to cap yields.
The largest risks, though, are emanating from the Oval Office. Trump's war in Iran, his tariffs, and his efforts to exert control over Fed policy are eroding trust in the dollar and US government debt—and this week's oil surge could prove the most destabilizing factor yet. For Asia, the real balance sheet of the strait is becoming painfully clear, and the region's ASEAN economies are feeling the strain in uneven ways. As Iran's leadership vacuum deepens, the geopolitical void only adds to the uncertainty.
