Latest / The Emerging Markets Podcast with Fexingo: Developing Economies, Growth, and Investment / Why South Korea Chip Rout Signals Trouble for Emerging Markets
Transcript
- Lucas: South Korean stocks just had their worst day in months, down eight percent as of yesterday's close. The trigger was a broad tech sell-off, but the magnitude tells you something specific about how exposed emerging markets are to the AI semiconductor cycle. Luna: Eight percent in a single session — that's the kind of move you see when a country is heavily concentrated in one industry. South Korea's top two exporters, Samsung and SK Hynix, are both chipmakers. Lucas: Exactly. Combined, they account for nearly a third of the entire KOSPI index. When the market reprices semiconductor stocks — especially the memory segment — South Korea feels it immediately. Yesterday's catalyst was a revenue warning from a major U.S. cloud customer that suggested AI chip orders might be peaking. Luna: Right, and we've seen this pattern before. The semiconductor cycle is notoriously volatile. Memory chips, in particular, are a commodity — oversupply leads to price crashes. Lucas: But this cycle felt different because of the AI boom. Everyone assumed structural demand growth. Now there's a whiff of excess inventory. The trade-weighted dollar index is still elevated at around 120.7, and the U.S. trade deficit widened to over 77 billion dollars in May. That suggests global demand is softening, and emerging market exports are the first to feel it. Luna: So if South Korea is the canary, which other emerging markets are next in the coal mine? Taiwan's TSMC and the broader tech sector there. INDA, the India ETF, is also heavily weighted in tech services. Lucas: Taiwan's already had a rough few weeks. The Philadelphia Semiconductor Index is down about twelve percent from its June high. But for emerging markets, the ripple goes further. China's memory chip makers — we covered their IPO surge back in episode 136 — they're also exposed to a potential downturn. Luna: And it's not just tech. The widening U.S. trade deficit — exports are up slightly but imports are growing faster — that reflects both strong U.S. consumption and a stronger dollar making imports cheaper. But for emerging market producers, it means their export growth is slowing even as they import more expensive energy. Lucas: Oil just jumped on the Iran situation, which adds cost pressure for net importers like India, Turkey, and parts of Southeast Asia. So you have a squeeze: lower tech revenue, higher energy costs, and a trade deficit that keeps the dollar strong. That's a tough environment for emerging market equities. Luna: Are we looking at a fundamental turning point, or is this just a correction within a longer ai driven bull market? That's the question every EM investor is asking. Lucas: I'd say it's too early to call a full reversal. But the concentration risk we talked about — when a market is so dependent on one sector — it amplifies the downside. South Korea's semiconductor exports alone are about twenty percent of its total exports. If those fall by even ten percent, it hits GDP growth. Luna: And that's why EM investors need to look beyond the headline indexes. EEM and VWO have large weights in South Korea and Taiwan. If the chip rout deepens, those ETFs will drag even if other EM sectors are doing fine. Lucas: One thing that's interesting: the yuan has been very stable against the dollar at around 6.77 per dollar. That suggests China's central bank is managing its currency carefully, maybe to avoid adding to its own export woes. But if the chip slump spreads to China's memory sector, that could change. Luna: And we haven't even mentioned the geopolitical overlay. The Iran conflict could escalate, pushing oil higher. That would further squeeze EM current accounts. The U.S. current account deficit is already over 226 billion dollars in the first quarter, and it's widening. Lucas: Right. So the South Korean sell-off might be a single-day event, but it's a symptom of broader pressures. For EM investors, the playbook might be to trim exposure to export-heavy markets and look for domestic-demand stories. Luna: That's easier said than done. Most emerging market ETFs are built around the same export-heavy names. You have to go active or look at countries like India, which is more service-oriented. Lucas: India's tech sector is more IT services than hardware, so it's less sensitive to the chip cycle. That's a real diversification benefit. But the broader point is: when the leading edge of the EM rally — semiconductors — stumbles, you need to check the rest of the portfolio. Luna: We spend a lot of time on these shows unpacking exactly these kinds of connections. And honestly, that's only possible because we're listener-supported. A few folks chip in monthly at buy me a coffee dot com slash fexingo — it keeps the whole operation ad-free and focused on what matters. Lucas: Yeah, no ads, no sponsor pressure. It means we can follow the data wherever it leads. If this show has made something click for you, that coffee link is the only ask we ever make. Luna: And we genuinely appreciate those who do. It lets us keep digging into stories like this one — and there's plenty more to dig into. Lucas: So back to the chip rout. One thing I'm watching is earnings season. Samsung reports next week. If they guide lower on memory prices, we could see another leg down. That would test the resolve of EM central banks that have been raising rates to defend currencies. Luna: Some of them, like the Bank of Korea, have already paused. A prolonged tech downturn might force them to cut rates, which could weaken the won further. It's a delicate balance. Lucas: Exactly. The won has already weakened about five percent this year against the dollar. A weaker currency hurts importers but helps exporters — except when the exporters are selling chips into a falling market. Then the currency depreciation just adds to the headache. Luna: So what's the one data point you're going to watch over the next month? Lucas: It's not a single number. I'm looking at the price of DRAM and NAND flash memory. Spot prices have already fallen about fifteen percent from the April peak. If they drop another ten percent, the entire EM tech trade gets recalibrated. Luna: And for listeners who hold EEM or individual EM tech stocks — any quick advice? Lucas: Check your concentration. If you're heavy on South Korea or Taiwan, maybe rebalance into markets like Brazil or Mexico that are more commodity or nearshoring plays. EWW, the Mexico ETF, is actually up year to date because of the US trade shift. Luna: That's the other side of the EM story — not every market is tied to the chip cycle. The divergence is real. Lucas: And that divergence is exactly what we'll keep tracking. The chip rout is a sharp reminder that emerging markets don't move as one. Knowing which strings are attached to which industry is what separates informed investing from just buying the index.