daily
Foreign + institution co-buy
Stocks where foreign and institutional investors are both net buyers.
Observed 2026-10-20 · Delayed
| Rank | Name | Market | Metric | Mkt Cap |
|---|---|---|---|---|
| 1 | 롯데렌탈 089860 | KOSPI | 10.6B KRW | 1.8T KRW |
| 2 | HMM 011200 | KOSPI | 5B KRW | 22T KRW |
| 3 | GS건설 006360 | KOSPI | 3.3B KRW | 2.5T KRW |
| 4 | CJ제일제당 097950 | KOSPI | 2B KRW | 2.7T KRW |
| 5 | HT로보틱스 396300 | KOSDAQ | 1.9B KRW | 296.7B KRW |
| 6 | 안랩 053800 | KOSDAQ | 1.6B KRW | 971.3B KRW |
| 7 | 한미사이언스 008930 | KOSPI | 1.6B KRW | 3T KRW |
| 8 | 오킨스전자 080580 | KOSDAQ | 1.5B KRW | 543.1B KRW |
| 9 | 알멕 354320 | KOSDAQ | 1.1B KRW | 410.3B KRW |
Interpretation guide
What foreign and institutional co-buying means
The Foreign + Institution Co-Buy radar highlights Korean stocks where both foreign investors and domestic institutions are net buyers. When two large professional investor groups buy in the same direction, the flow backdrop can support trend continuation.
Selection rules
The screen looks for names where both foreign and institutional net flow are positive in the latest investor-flow data. It estimates combined net-buying value by multiplying net shares by the closing price.
- Combined net buy is an estimated value of foreign plus institutional buying.
- Foreign ownership change can help judge whether the flow is becoming persistent.
- Net buying relative to trading value shows how influential the flow may be.
How to interpret it
Co-buying is positive, but one day is not enough. If co-buying repeats while the price trends higher, confidence improves. If the price is weak despite buying, the stock may still be absorbing supply.
- Two or three consecutive co-buying sessions improve flow quality.
- Large net buying with weak price action can mean large sellers are still present.
- During KRW weakness, foreign-flow persistence should be checked separately.
How to respond
Co-buying is useful for watchlist construction, but entries still need price and turnover confirmation. In weak markets, define support and invalidation levels before following the flow.
- In an uptrend, co-buying can support holding a position.
- In a range, keep size smaller until price breaks out.
- If foreign and institutional flows diverge, momentum quality may be fading.
Related views
Related indicators and radar
KOSPI Foreign Net Buy
Foreign flow tied to FX conditions and large-cap demand.
Connects stock-level co-buying with total foreign market flow.
KOSPI Institution Net Buy
Domestic professional flow for rotation and index support.
Cross-checks co-buying with broad institutional flow.
Trading value spikes
Stocks where turnover is far above the recent average.
Checks whether buyer quality is backed by turnover.
Market breadth
Advance-decline breadth, high-low balance, and trend participation.
Shows whether co-buying is part of a broader market improvement.