Amid the rebound of semiconductor stocks in the domestic stock market, domestic investors
Korea Securities Depository data (3rd to 14th) show South Korean investors were net buyers of Japanese semiconductor-related stocks, led by Murata Manufacturing ($5.32M) and Tokyo Electron ($2.26M). Arisawa Manufacturing and Micronix also ranked in the top net buys. Global X Japan Semiconductor ETF was among top 10. Kioxia rebounded after a July drop, with net purchases of about $0.97M and a brief net sale.
How this was made

The 30-second read
Why it matters
The most actionable element is the combination of (1) quantified net-buy concentration across the Japanese semiconductor supply chain and (2) specific NAND product-generation and longer-dated sales growth targets tied to AI inference. However, much of the rest is positioning and price-move context rather than new company fundamentals.
Market read
Traders may use the article as a sentiment and flow read-through for the Japanese semiconductor supply chain and the global memory complex, but it lacks near-term, company-specific financial triggers for most names.
What to watch
The piece does not quantify whether AI-inference demand is translating into near-term pricing or margins; it also lacks confirmation of order backlog or capex changes from the companies mentioned.
Background
The article describes domestic investors buying Japanese semiconductor-related stocks during a rebound in domestic semiconductor equities, with concentration in equipment, materials, and components.
Ticker impact
Tokyo Electron ranked second among Japanese semiconductor-related net purchases by domestic investors from the 3rd to the 14th.
Potential continuation of relative strength while the semiconductor rebound persists.
The text is a flow/positioning story with no new Tokyo Electron corporate action or earnings detail.
SanDisk (Kioxia and SanDisk unveiled 9th generation 2D QLC 3D flash technology aimed at AI and data-intensive applications) and SanDisk cited mid-to-late 10% sales growth targets for 2028-2030.
Support for upside momentum in NAND/storage exposure, especially for AI-inference-related demand narratives.
The article includes concrete product and target details, though it does not quantify near-term financial impact.
Micronix was listed among the top net buyers, and the article also notes Micron shares rose around 4% at the investor event.
Moderate positive bias for memory complex, with follow-through dependent on broader AI memory demand confirmation.
Micron price move is mentioned, but the only hard targets in the text are attributed to SanDisk, not Micron.
Market effects
Reinforces AI-inference demand narrative for NAND/SSD and semiconductor supply chain, potentially supporting memory and equipment sentiment.
Suggests domestic investors are rotating into Japanese semis, which can amplify relative performance in Japan-listed supply chain names.
US memory complex (SanDisk/Micron) and Asia (Kioxia/SK Hynix) are moving in the same AI-infrastructure theme, supporting a broader global memory bid.
Counterpoint
Net-buy rankings can reverse quickly; the article also notes Kioxia shifted to net sales on specific days, implying profit-taking risk after a sharp rebound.
Key entities
- companyMurata Production Company
Top net purchase by domestic investors in Japanese stocks from the 3rd to the 14th, per Korea Securities Depository data.
- companyTokyo Electron
Second-largest net purchase among Japanese semiconductor-related stocks in the same period.
- companyKioxia
Shares rebounded sharply this month; net-flow ranking shifted, including a cumulative net sale on the 3rd and 14th.
- companySanDisk
Unveiled 9th generation 2D QLC 3D flash technology for AI and data-intensive applications and cited mid-to-late 10% annual sales growth targets for 2028-2030.
- companySK Hynix
Rose 3.26% on the 14th amid the AI-infrastructure and NAND demand expectations.




