FAQ

Samsung HBM and the Memory Supercycle FAQ

Answers common questions after Samsung's Q3 2026 operating profit topped 100 trillion won: profit sources, HBM4 progress, shortage outlook, the SK Hynix gap, and investment risks.

One-sentence summary

Samsung's Q3 2026 operating profit reached KRW 107.44T, with the DS chip division contributing KRW 106.5T, driven by the HBM4 ramp and DRAM price increases; Samsung sees the memory shortage through 2028.

Basic Questions ​

1. What was Samsung's Q3 2026 operating profit? ​

KRW 107.44T, up about 783% YoY. Consolidated revenue was KRW 195.25T (+~127% YoY), a fourth straight record, with an operating margin of about 55%.

2. Where did the profit come from? ​

The DS semiconductor division. It posted Q3 sales of KRW 147.1T and operating profit of KRW 106.5T, a segment margin of about 72%, contributing nearly all group profit; mobile lost about KRW 0.6T.

3. What is the HBM4 progress? ​

HBM4 sales scaled sharply in Q3. Samsung said HBM4E will enter mass production, continuing the HBM cadence; DRAM ASP rose about 20% QoQ.

4. How long will the memory shortage last? ​

Samsung sees it through 2028. SK Hynix, meanwhile, gives a longer outlook through 2030.

Advanced Questions ​

5. Why did net income miss and the stock fall? ​

Net income of KRW 75.21T missed expectations. Samsung's Korean shares fell about 4% on the day, reflecting concern over margin sustainability and earnings concentration.

6. Who has the higher Q3 margin, Samsung or SK Hynix? ​

SK Hynix. SK Hynix's Q3 operating margin was about 80%, above Samsung's about 55%; Samsung is larger in revenue and absolute operating profit.

7. What should investors watch in memory stocks? ​

The price cycle and AI capex turns. Segment margins sit at historic highs; if AI demand slows or supply returns, profit can retreat sharply. Track HBM share competition as well.

Sources ​