Recent volatility in the iShares MSCI South Korea ETF (EWY) stems primarily from its heavy weighting in memory-chip leaders Samsung Electronics and SK Hynix, which together exceed 45% of assets. Strong October export data showed semiconductor shipments surging over 250% year-over-year, supporting record quarterly profits, yet foreign outflows and China competition concerns triggered a sharp correction from October highs near $190 to lows around $132 in early November. The ETF rebounded to close at $142.10 on November 9 amid shifting AI sentiment and U.S. midterm outcomes, with an index methodology change to daily 25% caps also occurring around that date. Key near-term influences include ongoing chip demand visibility and broader risk appetite tied to global tech spending.