Oil surge and bond rout rattle emerging markets

A fresh round of U.S. military strikes against Iran sent oil prices surging and deepened a global bond selloff on Tuesday, rattling emerging-market assets caught between rising borrowing costs and a strengthening dollar.

Brent crude climbed above $94 a barrel after the Pentagon confirmed strikes on Iranian targets, according to The Wall Street Journal. The move extended a months-long pattern in which Middle East hostilities have whipsawed energy markets. At the same time, the yield on the 10-year U.S. Treasury reached 4.80%, its highest level since early 2025, as investors priced in higher-for-longer interest rates.wsj+1

A Squeeze on Borrowers

The combination of rising developed-market yields and a stronger dollar is raising the "all-in" refinancing cost for emerging-market borrowers, who often issue debt in dollars. When those two forces move in tandem, the extra premium investors demand to hold weaker credits tends to widen as well. Reuters reported pressure on currencies such as Hungary's forint, which fell to its weakest since April, and on hard-currency sovereign debt including Senegal's bonds.finimize

Higher-beta economies face the sharpest risks. In Argentina, JPMorgan's ↗ 1.64% EMBI+ spread has widened above 500 basis points after touching 402 in mid-July, its lowest since 2018. Economist Gustavo Ber told the Buenos Aires Herald that Fed Chair Kevin Warsh's hawkish Jackson Hole speech represents "a serious challenge" for global fixed income, particularly in more volatile developing economies. Markets are now pricing in roughly a 68% chance the Fed raises rates at its September 15-16 meeting.buenosairesherald

EM Equities Still Ahead — For Now

Despite the near-term turbulence, emerging-market equities have outperformed U.S. stocks in 2026. The MSCI Emerging Markets ↗ 0.48% index has gained 20.28% year-to-date in dollar terms, compared with a 12.07% rise in the S&P 500, according to Moneycontrol. The outperformance has been driven largely by semiconductor names in South Korea and Taiwan. TSMC ↗ 0.36%, Samsung Electronics, and SK Hynix ↘ 0.79% together accounted for 28.23% of the MSCI EM index as of end-July, riding an AI hardware cycle that has lifted forward earnings estimates sharply.moneycontrol

Bloomberg opinion noted that much of the bond selloff has been concentrated in long-dated developed-market sovereign debt, with emerging markets showing unusual resilience. But analysts warn the window could narrow if oil prices stay elevated and Treasury yields continue to climb.bloomberg