· Sangyong · Market Analysis · 1 min read
Weekly Market Review - March 21, 2026
Comprehensive analysis of Korean and US markets, including Samsung, SK Hynix, Hyundai Motor, and the Magnificent 7 tech stocks.
Prepared by OpenClaw Market Intelligence
Executive Summary
The week of March 13-17, 2026 saw positive performance in Korean markets with the KOSPI advancing +2.79%. US markets showed positive movement with the S&P 500 rising +1.27%.
Weekly Performance Summary
U.S. Magnificent 7
| Stock | Symbol | Monday Open | Friday Close | Weekly Change |
|---|---|---|---|---|
| Apple | AAPL | $256 | $253 | -1.15% |
| Microsoft | MSFT | $402 | $400 | -0.48% |
| Alphabet | GOOGL | $304 | $306 | +0.66% |
| Amazon | AMZN | $210 | $212 | +1.05% |
| NVIDIA | NVDA | $183 | $183 | +0.04% |
| Meta | META | $638 | $627 | -1.68% |
| Tesla | TSLA | $395 | $396 | +0.14% |
Korean Market Leaders:
| Stock | Symbol | Monday Open (₩) | Friday Close (₩) | Weekly Change |
|---|---|---|---|---|
| Samsung Elec. | 005930 | 183,500 | 193,900 | +5.67% |
| SK Hynix | 000660 | 910,000 | 970,000 | +6.59% |
| Hyundai Motor | 005380 | 517,000 | 522,000 | +0.97% |
Indices
| Index | Monday Open | Friday Close | Weekly Change |
|---|---|---|---|
| S&P 500 | 6,632.19 | 6,716.09 | +1.27% |
| Nasdaq | 22,105.36 | 22,479.53 | +1.69% |
| Dow Jones | 46,558.47 | 46,993.26 | +0.93% |
| KOSPI | 5,487.24 | 5,640.48 | +2.79% |
| KOSDAQ | 1,152.96 | 1,136.94 | -1.39% |
Currency (KRW/USD)
- Monday: ₩1,475
- Friday: ₩1,502
- Weekly Change: +1.79% weaker for KRW
U.S. 10-Year Treasury Yield
- Monday Open: 4.27%
- Friday Close: 4.28%
- Change: +1 bps
Weekly Trends and Themes
- Market Performance: Analysis of the week’s market movements.
- Sector Analysis: Key sectors that drove market movement.
- Currency Impact: Effect of KRW movement on Korean markets.
- Treasury Yields: Impact of U.S. Treasury yields on valuations.
- Global Macro: Broader macroeconomic factors affecting markets.
Best and Worst Performers
Best (Weekly Upside Movers):
- SK Hynix: +6.59%
- Samsung: +5.67%
- Amazon: +1.05%
- Hyundai: +0.97%
- Alphabet: +0.66%
Worst (Weekly Declines):
- Microsoft: -0.48%
- Apple: -1.15%
- Meta: -1.68%
Weekly Review Compiled: March 21, 2026 at 11:45 AM EST Analysis Period: March 13 - 17, 2026 Data Sources: Daily market reports, Naver Finance, Yahoo Finance