Latest / The Emerging Markets Podcast with Fexingo: Developing Economies, Growth, and Investment / How SK Hynix and AI Are Reshaping Emerging Markets
Transcript
- Lucas: South Korea's benchmark ETF, EWY, is up fifteen percent in just the last five days. That's not a typo — fifteen point three percent, to be exact. Luna: And that's on top of what's already been a huge year. I mean, the Korea ETF has been one of the best-performing EM plays in 2026. Lucas: Right. And the reason is really concentrated: one stock. SK Hynix hit a one-trillion-dollar market cap this week. The company has surged 250% year-to-date. It's now the third-most-valuable semiconductor company in the world, behind only NVIDIA and TSMC. Luna: So essentially, Korea's entire EM performance is riding on a single AI memory chip maker. That's both impressive and a little scary. Lucas: Exactly. And that's what we're going to dig into today — what does it mean when an entire emerging market becomes a proxy for one industry? And is that sustainable? Luna: Let's start with the SK Hynix story. What's driving this? I know it's tied to AI, but specifically, what are they doing that's different? Lucas: SK Hynix makes high-bandwidth memory, or HBM, which is a type of DRAM that sits right next to AI accelerators like NVIDIA's H100 and the new Blackwell chips. It's basically the short-term memory for AI models. And they dominate that market — they have around 50% share. Luna: And demand is just exploding. Every hyperscaler — Microsoft, Amazon, Google — is building out AI infrastructure. Lucas: Right. And the interesting thing is, SK Hynix's success is pulling up the whole Korean economy. The won has strengthened, exports are booming, and the Korea ETF is up 15% in a week. But it creates this concentration risk. If HBM demand slows, or if Samsung catches up in HBM, the entire ETF could get crushed. Luna: And that's already something we've seen in other markets. Taiwan's EWT is up 13.7% in five days — again, driven by TSMC. So both Korea and Taiwan are essentially one-stock markets right now. Lucas: Yeah, EWT's five-day gain is 13.7%. And TSMC is over 30% of that ETF. So when TSMC moves, the whole index moves. That's great on the way up, but it amplifies the downside too. Luna: So what does this mean for investors who want emerging markets exposure but are wary of that concentration? Are there other EM plays that are more diversified? Lucas: India's INDA is up 2.7% in five days — not as flashy, but much more diversified. India's growth is driven by domestic demand, not exports. So it's less exposed to the global tech cycle. Vietnam is another one — we did an episode on it a few weeks back. Vietnam benefits from supply chain shifts but isn't as tied to AI hardware. Luna: And then there are the commodity-driven EMs. Brazil's EWZ is up 1.7% in five days. That's more about agribusiness and fiscal reform than tech. Lucas: Exactly. But even commodity-driven EMs are affected by the dollar. The trade-weighted dollar index is at 119.3 — down just slightly from recent highs, but still very strong. That's a headwind for commodity exporters because commodities are priced in dollars. A stronger dollar means lower revenues in local currency. Luna: So if you're an investor looking at EM right now, you have to ask: do I want the ai driven growth story, with all its concentration risk, or something more balanced? Lucas: And there's no right answer — it depends on your risk tolerance. But I think it's important to understand what you're actually buying. When you buy EWY, you're not buying 'Korea' — you're buying Samsung, SK Hynix, and a few other tech giants. You're making a bet on the memory chip cycle. Luna: Which brings us back to SK Hynix. Analysts are saying the rally might only be halfway done. But can it really keep growing at this pace? Lucas: The bull case is that AI demand is still in early innings. Data center capex is expected to grow 30% this year. And SK Hynix is the leader in the most critical component. The bear case is that Samsung is investing heavily to catch up, and there's always the risk of a demand pull-forward. Luna: And then there's the geopolitical angle. South Korea is caught between the US and China. Any escalation in chip export controls could directly impact SK Hynix. Lucas: Right. And that's part of why we're seeing this divergence — China ETFs like FXI and MCHI are down this week. FXI is off 1.5%, MCHI down 0.8%. Alibaba, JD, Baidu — all down. The China tech story is struggling while Korea and Taiwan are booming. Luna: So if I'm an EM investor, what's the takeaway? Should I be piling into Korea and Taiwan, or looking elsewhere? Lucas: I think the takeaway is: know what the ETF holds. If you already have a lot of US tech exposure, adding EWY or EWT might just double down on AI. If you want true diversification, look at India, Vietnam, or even Brazil. But if you believe in AI's secular growth, Korea and Taiwan are the purest plays. Luna: And they've certainly been working. Speaking of which — it's because of conversations like this that we're able to keep the podcast ad-free and focused on what matters. If you've gotten something out of our episodes, consider buying us a coffee. It's buy me a coffee dot com slash fexingo. Even a couple of dollars a month genuinely helps keep these episodes coming. Lucas: Yeah, we really appreciate everyone who supports the show. It allows us to dig into topics like this without worrying about sponsors. So thanks. Luna: Now, back to the markets — we mentioned the dollar index at 119.3. How does that specifically affect EMs like Peru or Egypt, which we've covered before? Lucas: Those are frontier markets, but the dynamic is similar. A strong dollar makes dollar-denominated debt more expensive to service. And for commodity exporters like Peru — copper — a strong dollar can depress prices. Egypt imports a lot of food, so a strong dollar makes imports more expensive. Luna: So the strong dollar is really a double whammy for many EMs: higher debt costs and weaker commodity revenues. Lucas: Exactly. And that's why we're seeing such divergence. The ai linked EMs are powering through despite the dollar, while others are struggling. The key is whether that AI demand is durable enough to offset macro headwinds. Luna: So to wrap up: SK Hynix is the story of the year in EMs, but it's a concentrated bet. If you're in EWY or EWT, you're all-in on AI hardware. If you prefer broader exposure, look elsewhere. And keep an eye on the dollar. Lucas: Exactly. And we'll keep tracking these trends. Next week, we'll look at whether the AI boom is starting to benefit other EM tech hubs, like Malaysia and Thailand. Thanks for listening.