Samsung Electronics climbs 3.19%, SK Hynix rises 4.79%... Memory stocks strengthen
Samsung Electronics (005930) and SK Hynix (000660) rose 3.19% and 4.79% respectively in early trading on the 4th. Analysts cite a rebound in U.S. tech stocks, improved memory market expectations, and bargain hunting as reasons. Both companies reported strong Q3 2026 earnings in their memory businesses, driven by AI demand.
How this was made

The 30-second read
Why it matters
Both companies posted record memory revenue and profit, driven by AI‑related demand, prompting a notable intraday rally.
Market read
The earnings surprise and AI memory demand narrative are driving a sector‑wide rally in Korean memory stocks.
What to watch
Potential supply‑chain constraints or export restrictions could limit HBM4 growth.
Background
The article reports simultaneous price gains for Samsung Electronics and SK Hynix following the release of their Q3 2026 memory business results.
Ticker impact
Samsung Electronics rose 3.19% in early trade after reporting record Q3 memory revenue and profit.
upward pressure as investors price in strong memory business results
Quarterly numbers exceed expectations and the stock already moved sharply on the news.
SK Hynix gained 4.79% after releasing Q3 results showing record memory revenue and HBM4 shipments.
upward pressure as demand for AI‑related memory accelerates
Strong earnings and a clear growth narrative for AI memory underpin the price rally.
Market effects
Memory segment likely to see broader gains as AI demand fuels higher DRAM/HBM pricing.
Korean semiconductor stocks rally, boosting the KOSPI's large‑cap tech exposure.
U.S. semiconductor rebound reinforces the upside for Asian memory makers.
Counterpoint
If memory pricing softens later in the quarter, the rally could be short‑lived.
Key entities
- companySamsung Electronics
Korean semiconductor giant reporting strong Q3 memory earnings.
- companySK Hynix
Korean memory chipmaker reporting record Q3 results and HBM4 shipments.

