Korea's AI-Chip Rally Puts MKOR's Fees Under the Lens

The Matthews Korea Active ETF (MKOR) is up roughly 80% year-to-date on an AI chip demand surge in Korean equities, and closed at 63.51 on Sept. 4, 2026, up 3.55%, while cheaper passive rival EWY closed at 188.90, up 4.62%. Korean equities have been one of the year's loudest trades, and the vehicle carrying the loudest number is the Matthews Korea Active ETF (MKOR), up roughly 80% year-to-date on the back of demand for artificial-intelligence chips. That is the kind of return that draws money in after the fact — which is exactly when the structure of the fund you buy starts to matter more than the story that got you interested. MKOR last closed at 63.51, a gain of 3.55% on the session, with a day range of 62.61 to 63.53 and a prior close of 61.34, as of the last trade on Sept. 4, 2026. The larger, cheaper and better-known iShares MSCI South Korea ETF, EWY, closed at 188.90, up 4.62%, from a prior close of 180.56 and inside a 181.15 to 189.20 range. On that single day, the passive fund outran the active one by about 1.07 percentage points — a reminder that active management is a claim about the full cycle, not about any given Friday. What the AI chip cycle did to Seoul The engine here is not diversified Korean industry. It is semiconductors, and specifically the memory and logic supply chain feeding AI data-center buildouts. Korea's index-level performance is unusually concentrated in a handful of chipmakers, which means a country ETF bought as a diversified emerging-markets sleeve has, in practice, been a leveraged expression of one global capital-expenditure theme. That works beautifully on the way up. It is also the precise reason a roughly 80% year-to-date gain should be read as a risk statistic as much as a reward one. Country funds tethered to a single cyclical export do not decay gently when the cycle turns; they reprice in a hurry, and they do it while the underlying market is closed in New York hours, leaving US-listed shares to gap. Active versus index, and what you pay for the difference MKOR carries a higher expense ratio than cheaper rivals such as EWY, as MarketBeat noted, and it also carries more volatility. An expense ratio is the annual slice of assets a fund takes to run itself, deducted quietly from returns rather than billed. On a fund that has just returned roughly 80%, a fee gap looks trivial. On a flat year, it is the whole result. The trade-off an active Korea manager offers is straightforward in theory. A market this top-heavy gives a stock-picker two obvious levers: underweight the mega-cap names when their valuations run past the cycle, and reach into mid-cap suppliers and domestic franchises the index barely touches. Both levers cut both ways. Underweighting the leaders in a year the leaders triple is how active Korea funds lose to the index; owning the second tier is how they beat it when the rally broadens. The practical question for anyone sizing a position now is which of those two regimes they think comes next. If the AI capex story stays narrow and the largest chip names keep doing the heavy lifting, a low-cost index tracker is the cleaner instrument. If Korea's rally widens into industrials, financials and consumer names — the classic late-phase broadening — the case for paying up for security selection improves considerably. The volatility is the product, not a defect Both of these funds are single-country, currency-unhedged exposures. Investors are underwriting three separate things at once: Korean corporate earnings, the won against the dollar, and the global AI spending cycle. Any one of them can dominate a quarter. A weakening won can erase a decent local-currency gain for a US-based holder; a strengthening one can flatter a mediocre one. Against a US market that has gone nowhere dramatic — the S&P 500 tracker SPY closed at $770.23, down 0.38%, the Dow-tracking DIA at $534.12, down 0.52%, and the Nasdaq 100's QQQ at $719.00, up 0.19% on the same Sept. 4 session — the Korea funds' 3% and 4% single-day advances stand out. That dispersion is the point of an international allocation and also the reason position sizing should be deliberate rather than enthusiastic. What to watch from here Three things will settle whether the rally has more room. The first is the order book at the memory makers: AI-driven demand has to convert into contracted volume and pricing, not just commentary. The second is whether leadership broadens beyond semiconductors; a Korea rally that stays a chip rally is a chip rally wearing a country label. The third is flows — country ETFs that post outsized annual returns tend to attract their heaviest inflows near the end, and MKOR's active mandate means new money changes the portfolio's shape in a way that index inflows do not. There is also a structural tailwind worth tracking separately from earnings: Korea's market-plumbing reforms and its deepening links to US exchanges have been part of the re-rating argument for years. Governance improvement is slow, unglamorous and, when it lands, durable in a way that a chip upcycle is not. None of that resolves the fee question. It sharpens it. A passive tracker is a bet that Korea keeps working; an active fund at a higher expense ratio is a bet that Korea keeps working and that the manager adds more than the fee costs. After a roughly 80% run, the second bet requires more conviction than the first — and the burden of proof sits with the manager, not the market. MKOR last close: 63.51, +3.55% (as of Sept. 4, 2026, 20:00 GMT) 63.51, +3.55% (as of Sept. 4, 2026, 20:00 GMT) EWY last close: 188.90, +4.62% (as of Sept. 4, 2026, 20:00 GMT) 188.90, +4.62% (as of Sept. 4, 2026, 20:00 GMT) MKOR year-to-date: Up roughly 80% on AI chip demand Up roughly 80% on AI chip demand Cost difference: MKOR's expense ratio is higher than cheaper rivals such as EWY What is the Matthews Korea Active ETF? MKOR is an actively managed exchange-traded fund giving US investors exposure to Korean equities, where a manager selects holdings rather than tracking an index. It is up roughly 80% year-to-date on demand for AI-related semiconductors, and it last closed at 63.51, a gain of 3.55%, as of Sept. 4, 2026. How does MKOR differ from EWY? EWY is a passive, index-tracking South Korea fund with a lower expense ratio, while MKOR is actively managed and charges more. MKOR also carries greater volatility. On Sept. 4, 2026, EWY closed at 188.90, up 4.62%, outpacing MKOR's 3.55% gain that session by roughly 1.07 percentage points. Why have Korean stocks surged? The driver is demand for artificial-intelligence chips. Korea's equity market is heavily weighted toward semiconductor makers supplying memory and logic components to AI data-center buildouts, so a global capital-expenditure boom in AI infrastructure translates almost directly into index-level gains for the country's stock market. What is an expense ratio and why does it matter here? An expense ratio is the annual percentage of assets a fund deducts to cover management and operating costs. It comes out of returns automatically rather than being billed. After a year of roughly 80% gains the difference looks small, but in flat or negative years the fee gap between an active fund and a cheap index tracker becomes the dominant factor. What are the main risks in a single-country Korea ETF? Three stack together: concentration in semiconductors, so a chip downcycle hits hard; currency risk, because these funds are unhedged and a weaker won reduces dollar returns; and timing risk, since country funds tend to attract their heaviest inflows after outsized gains. Volatility is a feature of the exposure, not an anomaly. What signals would show the rally has further to run? Watch whether AI demand converts into contracted order volume and firmer memory pricing, whether market leadership broadens beyond semiconductors into industrials, financials and domestic consumer names, and whether Korea's governance and market-structure reforms continue. A rally that stays confined to chipmakers is narrower than its country label suggests. Photo: Jakub Pabis · Pexels Licence — source