SK Hynix (000660): Where It Stands — 2026-09-19 Deep Dive
2026-09-19 · semiconductor · SK Hynix data page
As of 2026-09-18 (Seoul close). Live numbers on the SK Hynix data page.
| Metric | Value |
|---|---|
| Close | ₩1,849,000 |
| Day | +4.70% |
| 5d / 20d / 60d | +2.04% / +6.88% / -28.33% |
| 52w position | 59.5% (₩277,000–₩2,919,000) |
| MA20 / MA60 | ₩1,725,350 / ₩1,833,817 |
Price Action and Technical Positioning
SK Hynix (KRX: 000660) closed at ₩1,849,000 on September 18, 2026, advancing 4.70% on the session. The move outpaced the broader domestic market, with the benchmark KOSPI gaining 2.66% and the junior KOSDAQ adding 0.60%.
From a technical standpoint, today’s rally pushed the stock back above both its 20-day moving average (₩1,725,350) and its 60-day moving average (₩1,833,817). Clearing the MA60 is a notable technical event; it follows an extended drawdown over the prior two months, evidenced by a 60-day return of -28.33%.
Short-term momentum has begun to recover, with the stock posting gains of 2.04% over the past 5 trading sessions and 6.88% over 20 sessions. However, SK Hynix’s 20-day rebound (+6.88%) still trails the domestic peer group, where the median 20-day return for covered Korean semiconductor names stands at +10.14%.
Within its 52-week band of ₩277,000 to ₩2,919,000, SK Hynix currently sits at the 59.5% percentile. While the share price has expanded significantly from its 52-week troughs, it remains approximately 36.7% below its 52-week peak, reflecting the sharp mid-year consolidation across high-beta semiconductor memory names.
Fundamental Drivers: High-Bandwidth Memory and Market Normalization
The day’s +4.70% outperformance reflects selective risk re-engagement in pure-play memory leaders following the sharp 60-day sell-off (-28.33%). As the primary mass producer and supplier of advanced High-Bandwidth Memory (HBM)—notably 8-layer and 12-layer HBM3E packages to Tier-1 AI accelerator manufacturers such as Nvidia—SK Hynix remains the central barometer for data-center AI hardware spend in Korea.
The stock’s 20-day lag relative to domestic semiconductor peers (+6.88% vs. the coverage median of +10.14%) highlights differing risk profiles within the sector. While broader equipment suppliers and diversified peers rebounded earlier, SK Hynix absorbed heavier multiple contraction during the summer tech correction due to its elevated exposure to advanced packaging bottlenecks and front-loaded AI capital expenditure expectations. Today’s push through the 60-day moving average (₩1,833,817) suggests that institutional concerns over an impending “memory peak” are meeting solid fundamental demand floors, underpinned by committed supply allocations for advanced DRAM through the remainder of the fiscal year.
Additionally, standard commodity DRAM and enterprise NAND (eSSD) pricing trends have maintained structural support from disciplined wafer-start management, which has shielded consolidated gross margins even as the stock price endured its two-month correction.
Risks and Caveats
- Absence of Flow Verification: Institutional and foreign trading flow data was unavailable for today’s session, leaving the institutional backing of the +4.70% move unconfirmed by exchange-cleared positioning metrics.
- Overhead Supply Resistance: Despite reclaiming the MA60, the sharp -28.33% 60-day decline leaves significant trapped volume between the current price (₩1,849,000) and the 52-week high (₩2,919,000).
- Relative Sector Lag: With a 20-day return of +6.88% trailing the sector median (+10.14%), the stock has yet to fully regain leadership within Korean tech, reflecting persistent market debate over competitive capacity additions from Samsung Electronics and Micron in the next-generation HBM4 pipeline.
- AI Capex Sensitivity: Given that the shares trade well above historical mid-cycle multiples relative to the ₩277,000 52-week floor, any downward revisions to cloud service provider (CSP) hardware budgets would disproportionately impact SK Hynix over diversified semiconductor conglomerates.
This note was produced by Chip & Cell’s data pipeline with model-assisted analysis. It is not investment advice; verify all figures against primary sources.
Not investment advice. Figures are as of publication and may contain errors — see methodology.