Emerging markets rebound exposes chip-stock dependence risk

Emerging markets face a July stress test as AI stock swings, higher oil and Fed-rate anxiety collide with heavy chip exposure.

The pressure is concentrated in two markets that have become proxies for the artificial intelligence trade: South Korea and Taiwan. Together, they account for about 45% of MSCI’s emerging equity index, making the broader benchmark unusually exposed to changes in sentiment toward semiconductor spending.

Chip hubs steer the index

Friday’s rebound showed how quickly that exposure can cut both ways. South Korea’s Kospi benchmark was described as surging a record 18% after falling by nearly the same amount over the prior three sessions.

The reversal was powered by chipmakers at the center of the AI supply chain. SK Hynix Inc. and Samsung Electronics Co. rose by as much as a third, helping the MSCI emerging-market index record its strongest session since 2008.

The rally did not erase the central problem for investors: the AI buildout requires vast capital spending, and markets are questioning whether the returns will justify the scale. When doubts intensify, South Korea and Taiwan can drag the entire asset class because their largest companies carry heavy index weight.

Oil and the Fed squeeze

The equity swings are landing at the same time as a harsher macro backdrop. Oil prices rose by a fifth in July as the Middle East war flared again, adding a direct inflation risk for energy-importing economies.

Roger Mark, an emerging-markets analyst at Ninety One Asset Management, called the setting an “ugly backdrop” and pointed to the Strait of Hormuz blockade as a central concern. He said the danger is not only higher crude prices, but the way energy costs could reshape inflation and central-bank decisions.

“There are lots of unknowns and you can paint a picture where things get uglier quite easily,” Mark said. “But from an EM perspective, the main risk is on the energy side: what happens if the energy flows don’t resume and what that means for inflation and central bank behaviour.”

US monetary policy is the other pressure point. If investors conclude the Federal Reserve will keep rates higher for longer, the dollar can strengthen and tighten financial conditions across emerging markets, especially where governments and companies borrow in foreign currency.

Three paths for July stress

Veteran market strategist Ed Yardeni recently cut his stance on emerging-market stocks to marketweight. “Four separate short-term headwinds are converging at once” he said, citing oil prices, a hawkish Fed, dollar strength and AI fatigue.

If AI spending fears ease, chip-heavy markets could stabilize first, giving SK Hynix and Samsung room to recover through improved expectations for memory and advanced semiconductor demand. At the industry level, that would support suppliers tied to AI servers, while the global macro effect would be narrower: better equity sentiment without much relief on inflation.

If energy flows remain constrained, the damage would spread beyond technology. Higher oil would lift import bills, pressure currencies and complicate rate cuts, while chipmakers could face weaker risk appetite even if their own order books hold up.

If the Fed signal turns more hawkish and the dollar strengthens, emerging-market assets could face a second squeeze through capital outflows and higher funding costs. The open questions are whether the AI trade can absorb another valuation shock, whether oil supply normalizes, and how far central banks will go to defend inflation credibility.