PSK Holdings and HBM Stocks Jump, Why Is HBM Back in Focus?

Today is about the HBM theme rather than 30-year yields!!!

(Data collected 2026-09-08 14:30 KST, intraday figures)

HBM-related stocks have stood out since the market opened.

Retail investors ask:

"Why is HBM rising again?"

Expectations of rising HBM demand are spreading across the semiconductor value chain.

How is the market now? (Source: Intraday indices)

KOSPI: 7,026.19 (+0.44%) [2026-09-08 Intraday (unconfirmed) data collected 14:30]

KOSDAQ: 827.97 (+0.70%) [2026-09-08 Intraday (unconfirmed) data collected 14:30]

IT and semiconductor sector recent move: +2.58% (Source: sector performance signal)

Industrials: +3.41% / Energy: +3.42%

Semiconductors, equipment, and components show relative strength amid broad index gains.

Definition → HBM is high bandwidth memory, a semiconductor memory optimized for large-scale data processing.

Who moved? (Source: related headlines)

PSK Holdings, Hanmi Semiconductor, Samsung Electronics, SK Hynix are mentioned as strong in related news.

Expectations for expanded HBM demand act as a bullish factor not only for memory but also for test, packaging, and equipment companies.

Why is it back in focus? (Source: news headlines)

Recent reports have repeatedly signaled rising HBM demand.

Market interpretation links AI and high-performance computing demand to higher HBM demand.

Related news has stimulated buying sentiment and triggered sector rotation.

Numbers investors should watch

IT and semiconductor sector gain: +2.58%

KOSPI gain: +0.44% / KOSDAQ gain: +0.70%

Sector outperformance versus the indices signals that money is flowing into related names.

So, up or down

Downside risks

• Lack of supply concerns, excessive demand expectations may trigger corrections and higher volatility
• External factors (interest rates, FX) can affect broad indices and weigh on semiconductors
• Valuation rerating and prepriced expectations can lead to downside realization

Supportive factors

• HBM demand signals, linkage to AI and HPC demand, expectation of real demand
• Value chain expansion, benefits spreading to equipment and test vendors
• Sector momentum, continued relative strength in IT and semiconductors

For reference only.

PickStock 💡

※ 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.

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