Latest / International Business with Fexingo: Global Trade, Cross-Border Deals, and Multinational Operations / Why South Korean Chip Stocks Are Defying the EM Selloff
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- Lucas: So you look at the emerging-market ETF flows this week, and there's a striking divergence. Korea's EWY is up over 15 percent in five days. Taiwan's EWT up nearly 14 percent. But China's FXI is actually down 1.5 percent. Same broad EM bucket, completely different stories. Luna: And this isn't just a one-week blip. Korea's been on a tear — SK Hynix alone has surged 250 percent this year. Hit a trillion-dollar valuation yesterday. Lucas: Right. And analysts are saying the ai fueled rally may only be halfway done. Which raises the obvious question: why is Korea outperforming Taiwan, when both are semiconductor giants? And why is China moving in the opposite direction? Luna: I think the answer starts with memory chips versus logic chips. Korea is the king of HBM — high-bandwidth memory — which is exactly what AI data centers need to pair with NVIDIA's GPUs. Lucas: Exactly. SK Hynix essentially owns the HBM market right now. Samsung is catching up, but Hynix got there first and locked in the contracts. Meanwhile, Taiwan Semiconductor, TSMC, dominates foundry — making the chips that Apple, NVIDIA, AMD design. But that business is more cyclical and more exposed to geopolitics directly on the island. Luna: And the market is pricing that geopolitical risk into Taiwan stocks. Even though TSMC's earnings are strong, the ETF carries a discount because investors worry about a potential blockade or escalation. Korea doesn't have that same headline risk, at least not right now. Lucas: Look at the numbers. Year-to-date, Korea's EWY is up something like 40 percent. Taiwan's EWT is up maybe 25. The gap widened dramatically in the past month. And it's not just AI — Korea's memory demand is also tied to the broader data-center buildout, which is still accelerating. Luna: And China? The FXI slide tells a different story. Weak consumer spending, property sector still in a hole, and the yuan just dipped again — it's at 6.79 per dollar as of last week. That's not a huge move, but it's a headwind for foreign investors. Lucas: The dollar index is still elevated at 119.3. That's down very slightly from its peak, but it's still strong. A strong dollar is a tax on EM returns for us based investors. But Korea and Taiwan have managed to overcome that because their export sectors are so tied to AI demand, which is dollar-denominated anyway. Luna: Right, if you're selling HBM to NVIDIA in dollars, the won's weakness actually helps your domestic earnings when you repatriate. So the strong dollar becomes a tailwind, not a headwind, for Korean chipmakers. Lucas: That's the key insight. For commodity-type exports, a strong dollar hurts. But for high-value, inelastic goods like AI memory chips, it's almost a non-issue. The buyers pay in dollars, the manufacturers benefit from a weaker local currency on costs. Luna: We should also mention the trade balance picture. The latest US data shows the goods and services deficit widened to about $60 billion in March. That's up from $57.8 billion. So the US is importing more, and a lot of that is tech hardware from Asia. Lucas: Exactly. The US is importing AI infrastructure components from Korea, Taiwan, and increasingly from Mexico and Vietnam as supply chains shift. The trade data reflects that real-time. Exports from Asia to the US are up, and the deficit grows because US consumers and data-center operators can't get enough of this stuff. Luna: I want to come back to the SK Hynix story. A trillion-dollar market cap for a memory chip company — that would have been unthinkable five years ago. Memory was always considered a commodity, highly cyclical, low margins compared to logic. Lucas: AI changed the calculus. HBM isn't commodity memory — it's a specialized, high-margin product that requires advanced packaging and tight integration with the GPU. NVIDIA basically co-designed the HBM interface with Hynix. That creates a moat. Luna: And the analysts saying the rally is only halfway done — that's based on forward earnings estimates. Hynix is trading at maybe 15 times forward earnings, which for a company growing revenue at triple digits is actually not that expensive. Lucas: It's not. Compare that to NVIDIA, which trades at 30-plus times forward earnings. Hynix looks cheap. But there's a risk: if AI investment slows down, memory gets hit hardest because it's more leveraged to volume. Foundry has a more diversified customer base. Luna: That's the bear case. The bull case is that AI spending is still in early innings. You mentioned the trade data. US imports of computers and electronics are up year over year. That's not just consumer gadgets — that's servers, memory modules, networking gear. Lucas: Let's look at the broader EM picture. India's INDA is up 2.7 percent this week. Brazil's EWZ up 1.7. Mexico's EWW up 1.7. So even outside the chip story, there's modest strength. But nothing like Korea and Taiwan. The AI trade is concentrated. Luna: And China's FXI being down — that's partly because of renewed tariff fears. The rhetoric from Washington hasn't cooled. And China's own economy isn't giving investors much reason to jump in. The property market is still deflating, consumer confidence is low. Lucas: So the takeaway is: within emerging markets, you have to be stock-specific, not just buy the whole basket. The old idea that 'EM rises together' is dead. The divergence between Korea and China this week is almost 17 percentage points. Luna: It's also a reminder that geopolitics doesn't always move markets in a straight line. Taiwan has higher geopolitical risk than Korea on the surface, but the market is pricing it in. Korea has lower headline risk, but it's still deeply tied to the global chip cycle. Lucas: One thing I'd flag: the yen is at 159 per dollar, essentially unchanged. But the won has weakened more this year, which helps Korean exporters. Taiwan's dollar is more stable. That currency dynamic also explains some of the performance gap between EWY and EWT. Luna: Right. If you're a US investor, the weaker won means your Korean ETF returns get a currency boost on top of the stock gains. That's been a nice tailwind. Lucas: I think we've dug into the numbers enough. Let me step back and offer a broader thought. You know, conversations like this are exactly why we keep this show ad-free. We don't have to pander to sponsors or simplify the analysis to please a broad audience. We can just talk about what the data actually says. Luna: Yeah. And if listeners find value in that — if these conversations have moved your work forward or helped you understand a market move — the best way to support us is a small contribution. Just buy me a coffee dot com slash fexingo. Lucas: Exactly. It's how we keep the show independent and focused on real analysis, not filler. And we really appreciate everyone who chips in. Luna: So back to the chip story — what does this mean for the next six months? The SK Hynix rally could continue if AI demand stays strong, but we should watch for any signs of inventory build. Lucas: That's the key risk. Memory has always been boom-bust. If hyperscalers like Microsoft, Amazon, Google pause their data-center expansions, Hynix would see orders drop fast. But for now, the order books are full through 2027. Luna: And Taiwan — TSMC is still the only game in town for advanced logic. So even if EWT underperforms EWY on a currency-adjusted basis, TSMC itself is a solid hold. The ETF just carries the geopolitical discount. Lucas: Right. So for an investor, the choice is: do you want pure-play AI memory exposure with currency tailwinds? Go Korea. Do you want diversified semiconductor exposure with a geopolitical risk premium? Go Taiwan. Both are valid, but they're different bets. Luna: And China? I'd stay away unless you see a clear policy catalyst. The FXI chart is just not attractive right now. Lucas: Agreed. The data is telling us that AI is reshaping global supply chains in a way that benefits Korea and Taiwan disproportionately. And until that changes, the divergence will persist. Luna: Great discussion. Let's check back in a month and see if the trend holds. Lucas: Absolutely. We'll be watching.