This ETF Almost Doubled Last Year and It's Nearly Twice as Cheap as the S&P 500. Is It a Buy?

The iShares MSCI South Korea ETF (EWY) exploded in 2025, rising about 92% and was up 19.3% year-to-date through Jan. 23, 2026, driven largely by memory-chip leaders Samsung (26.8% of the fund) and SK Hynix (18.3%), which together account for ~45% of the ETF. Strong AI-driven memory demand, a weak Korean won boosting exports, and shareholder-friendly policy moves (including a cut in the top dividend tax rate from 50% to 30% and corporate governance reforms) underpin the rally; EWY trades at a trailing P/E of ~17 (S&P 500 ~28) and a forward multiple near 10. The concentration in volatile memory stocks presents downside risk if chip prices reverse, but valuation and macro tailwinds make the ETF a compelling international diversification play.

Analysis

Market Structure: The rally is concentrated—Samsung + SK Hynix = ~45% of EWY—so South Korea exposure is effectively a leveraged memory-chip/AI-infrastructure trade (EWY +92% in 2025; +19.3% YTD). A weaker KRW and dividend/inheritance reforms are tailwinds that compress local risk premia (EWY P/E 17, forward ~10 vs S&P 28), lifting exporters and domestic payouts while leaving non-exporters (consumer services) behind.

Risk Assessment: Primary tail risk is a memory-cycle mean reversion: a 30%+ drop in DRAM/NAND ASPs would likely erase >40% of combined market cap for Samsung/SK Hynix and drag EWY materially. Other low-probability, high-impact events include tighter US/ROK export controls or a sharp KRW appreciation (>5% from here) that compresses reported earnings; monitor quarterly chip pricing and Korean tax legislation in the next 30–90 days.

Trade Implications: Use concentrated, hedged exposures—directional but capped—because sector volatility is extreme; prefer option-defined-risk structures or relative-value pairs vs US indices. Cross-asset: expect modest KRW depreciation pressure to continue in near term (supports equities), potential compression of IG spreads if large cap capex re-accelerates; watch copper/aluminum for incremental EV supply-chain demand.

Contrarian Angles: Consensus underestimates governance reforms and dividend-tax cuts as multi-year valuation multipliers—if implemented, multiple expansion from forward 10 toward 15 could add 20–35% to index price. Conversely, the market may be overpaying for sustained AI-driven memory demand; historical cycles (2017–2019 memory bust) show rapid downside when capex outpaces end-market demand, so size positions for drawdowns of 25–40%.

Key Decisions for Investors

• Establish a tactical 2% portfolio position in EWY (iShares MSCI South Korea) using a staggered entry: allocate half on a 0–5% pullback from current levels and the remainder on a 10% pullback; target 12-month horizon, trim to take profits at +30% or if forward P/E expands above 15.
• Buy a 6-month MU bull-call spread (size ~1% portfolio notional): buy ATM call and sell ~20% OTM call to cap cost—target asymmetric upside if Micron quarterly ASPs remain firm; cut the position if MU or industry guidance shows DRAM/NAND price declines >15% MoM or MU misses revenue guidance.
• Implement a relative-value hedge: long EWY 2% vs short SPY 1.5% (ratio ~1:0.75) for 3–12 months to isolate Korea memory exposure while reducing beta to US markets; exit or rebalance if KRW strengthens >5% or EWY underperforms SPY by 15% over 30 days.
• Protect core positions with defined-risk downside: purchase 3-month put spreads on EWY or MU (10–15% OTM put bought, 20–25% OTM put sold) sized at 0.5–1% cost of portfolio to cap downside to ~20–30%; review protection if Korean dividend/inheritance reforms pass in 60–90 days and adjust tails accordingly.