The iShares MSCI South Korea ETF (NYSEARCA:EWY) just gave back a chunk of its blockbuster year in a single week. EWY closed near $192, down roughly 12% on its most recent trading day. The fund is still up sharply year-to-date, and that round trip in miniature is the EWY story for the next year: the same factors that drove the melt-up can reverse fast, and holders need to know exactly which two levers matter.
EWY tracks the MSCI Korea 25/50 Index and charges 0.59%. It is the cleanest US-listed way to own large-cap South Korea, but as of recent disclosures, Samsung Electronics and SK Hynix together accounted for about 44.5% of the portfolio. It now functions as a leveraged bet on global memory pricing wearing a country ticker.
The macro factor that matters: AI memory demand
The single most important macro variable for EWY over the next 12 months is the AI capex cycle, specifically high-bandwidth memory (HBM) pricing and order flow. South Korean equities recently beat the NASDAQ 100 by the widest margin since 2001, driven by Samsung and SK Hynix riding HBM leadership for AI servers. The reverse is just as direct: on June 5, EWY tumbled 7.7% after Broadcom guided AI semiconductor revenue below expectations. One customer’s order book moved a country ETF by almost 8% in a session.
What to watch is concrete. Track quarterly capex guidance from the four hyperscalers and from Broadcom (NASDAQ:AVGO | AVGO Price Prediction), plus the monthly Taiwan and Korea semiconductor export numbers published by Korea’s Ministry of Trade, Industry and Energy. Check the Korean export release the first business day of every month and hyperscaler guidance each earnings cycle. Any signal that HBM pricing is rolling over, or that 2027 AI accelerator orders are being pushed out, hits Samsung and SK Hynix earnings revisions first and EWY’s NAV almost immediately.
The fund-specific factor: two stocks, one ETF
The fund-specific signal is that 44.5% concentration in two memory names. With roughly half the portfolio in one industry, EWY’s beta to global semis is now higher than its beta to the Korean economy. The remaining 55% includes financials, autos (Hyundai, Kia), and shipbuilders, but none of those positions are big enough to offset a 10% move in Samsung.
Holders should check the iShares fact sheet monthly for the Samsung plus SK Hynix combined weight. If that figure pushes above 50%, EWY effectively becomes a single-factor memory trade. The forward-multiple comparison matters too: Simply Wall Street’s May fair value of $273 implied roughly 25% undervaluation, but that math collapses if memory ASPs roll over.
The alternative if you want Korea without the memory bet
Investors who want Korean exposure with less semiconductor concentration can look at the Franklin FTSE South Korea ETF (NYSEARCA:FLKR), which tracks a different index and carries a lower fee. It still owns Samsung, but the underlying methodology and weighting cap exposure differently. It is the right tool for investors who like Korea’s reform story and weaker-dollar tailwind but want to dial down the AI memory beta.
What to monitor from here
Watch hyperscaler capex commentary and Korea’s monthly chip export print for the macro signal: a single soft month after the Broadcom warning would confirm the AI-memory air pocket is real. On the fund itself, watch the next iShares holdings update for any move in the combined Samsung and SK Hynix weight. Above 50% and EWY is a memory ETF in disguise. Below 40% and the fund’s Korea-reform thesis has more room to carry it through a semi pause.
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