Vector Database Theme +3.25%, NHN Leads with +11.99%
PickStock AI Summary
- As of the close on 2026-08-14, the vector database theme averaged +3.25% and showed strong relative flow.
- The clear leader was NHN (181710), while Mirae Asset Securities (006800) remained weak, so theme breadth should be checked.
- Data passed KOSPI day reference and price outlier guards, and the next trading day requires checking trade value persistence and follow-on stock spread.
TL;DR
- Strong theme at close: Vector Database
- Theme average move: +3.25%
- Leading strong stock: NHN (181710) +11.99%
- Weak stock within theme: Mirae Asset Securities (006800) -1.05%
Why the vector database theme looked strong today
The vector database theme covers databases that store, search, and compute similarity on high-dimensional vectors (embeddings), and the search, recommendation, and generative AI applications that use them. Companies providing embedding-based search, RAG (retrieval-augmented generation), and multimodal search infrastructure are included.
The theme averaged +3.25% today. To distinguish single-stock-driven moves from theme-wide diffusion, compare the leader and laggard performances.
Stock moves
| Stock | Market | Move | Checkpoints |
|---|---|---|---|
| NHN (181710) | KOSPI | +11.99% | NHN provides games, cloud, and AI search solutions and integrates embedding and vector indexing into services. |
| SK Telecom (017670) | KOSPI | +10.32% | SK Telecom develops and applies embedding and similarity search capabilities across AI platform, cloud, and model services. |
| MongoDB (MDB) | NASDAQ | +7.87% | MongoDB added vector search features to Atlas, supporting vector indexing and embedding-based queries. |
| LG Electronics (066570) | KOSPI | +4.12% | LG Electronics applies embedding-based features to AI platforms and home appliances, linking to vector search and multimodal use cases. |
| Naver Cloud (402340) | KOSPI | +3.31% | Naver Cloud offers cloud AI services and embedding/search capabilities related to vector DB and retrieval-based AI solutions. |
| Samsung SDS (018260) | KOSPI | +2.74% | Samsung SDS provides enterprise AI, cloud, and search solutions and is involved in enterprise services related to vector search. |
Next trading day checklist
- Confirm whether today s strength accompanied increased trading value.
- Separate stocks that held gains to the close from those with long upper wicks.
- Check whether U.S. market ETFs and peer flows continue.
- Within the theme, identify less-risen names but distinguish simple low-price rotation from structural momentum.
Further reading
- See vector database related stocks/leaders
- Market close briefing today: PickStock Insight
- Expand the theme yourself: Mindmap
Published: 2026-08-14 16:40 KST. Data sources: PickStock theme DB, Yahoo Finance price cache. Generated after checking price outliers and day reference, provided for information only and not investment advice.
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