Hanmi Semiconductor -5% and Divergent HBM Names, why are only some memory stocks bouncing?

Hanmi Semiconductor is down about 5% intraday.

HBM-related names are weak overall this week, but some stocks are rising.

Investors ask a simple question, why do stocks in the same HBM theme move in opposite directions.

The answer is stock-level flows and different news, so here is an intraday summary.

Key intraday numbers (collected 2026-10-12 14:30 KST)

Hanmi Semiconductor: 5% decline (collected 2026-10-12 14:30 KST)

Micron, SanDisk, SK Hynix: over 2% rise (recent news headlines)

HBM-related stocks: weak overall this week, some names rising (recent news headlines)

Even within the HBM theme, company-specific catalysts and flows diverge.

HBM is high bandwidth memory used in AI and high performance computing.

Why is Hanmi Semiconductor falling?

Source: recent news headlines reporting Hanmi Semiconductor down about 5%.

Hanmi Semiconductor is falling intraday while other memory stocks are rebounding.

This reflects a clash between sector-level positive news (memory rebound) and company-specific issues.

Why did only some memory names rise?

Micron, SanDisk, and SK Hynix are up over 2% and showing a rebound.

Global demand expectations, earnings, and supply factors are being priced differently across names.

Flow and news checkpoints

→ Step 1: Check short-term company filings or reports for Hanmi Semiconductor.

→ Step 2: Compare HBM supply chain (equipment and materials) news with announcements from major memory makers.

→ Step 3: Monitor foreign and institutional net buying intraday.

So, up or down

Downward forces

• Hanmi Semiconductor, 5% decline, possible name-specific negative factors
• HBM-related stocks (this week), overall weakness, investor sentiment dampened
• KOSPI, 6,625.93, closing price confirmed 2026-10-08, background volatility

Supportive forces

• Micron, SanDisk, over 2% rise, demand expectations reflected
• SK Hynix, over 2% rise, strength in large memory names
• Some stocks showing buying flows, defensive factors

Please use this for reference only.

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※ This article is for information purposes and is not investment advice.

※ Investment decisions and responsibility rest with the investor.

※ Figures are as of the time of writing and may change.