Emerging-market stocks just crossed another grim milestone: They’ve tumbled to the lowest level in 36 years relative to US equities.

MSCI Inc’s benchmark for developing-nation equities slipped to begin the week as Israel’s retaliation against attacks by Hamas sparked fears of a broader conflict between the US and Iran.

That took the gauge, as of Monday’s close, to the weakest-ever level relative to the S&P 500 Index in data going back to 1987. The ratio has since recovered as the emerging-market benchmark rose more than 1% in Tuesday’s session.

Emerging-market assets have faced several headwinds this year, with the latest selloff in shares since July wiping out $1.8 trillion of shareholder wealth. The MSCI gauge erased all of its 2023 gains last month and is down 1.4% for the year, compared with a 13% rally in the S&P 500.

The drop has come as traders bet that higher-for-longer interest rates in the US lead to further dollar strength, keeping pressure on riskier assets. China’s stumbling economy has also been central to recent underperformance, especially as the nation’s companies account for roughly a third of the broad emerging-market gauge.

“For the broader EM index to start outperforming, investors need to see concrete actions for a strong recovery from the Chinese administration,” said Ashish Chugh, head of global emerging-market equities at Loomis, Sayles & Co. in Boston.

The earnings performance and outlook of developing-nation companies has also been deteriorating, leading investors to shun the assets despite cheaper valuations. Consolidated profits at emerging-market companies, based on a trailing 12-month basis, have fallen to the lowest level since May 2021, according to data compiled by Bloomberg.

Equity analysts have cut their forecasts for 12-month profits at developing-nation companies by 2.8%, while they have raised the projections for US firms by 4.5%.

That leaves outperformance within emerging-market stocks likely to be limited to those that benefit from strong growth dynamics, said Loomis’s Chugh.

“India, Indonesia and Brazil are doing very well — both cyclically and structurally — and should continue to deliver strong returns,” he said. “The driver of their performance will continue to be strong earnings growth, as well as a supportive macro environment.”

This article was provided by Bloomberg News.