Market Radar

Separate stock screens from chart indicators and review market breadth, weekly breakouts, one-year winners, and market-cap concentration.

2026-05-15

Market breadth

KOSPI 25%

KOSPI 25% / KOSDAQ 11.5%

2026-05-15

52-week highs + turnover

한국쉘석유

20 names

2026-05-15

One-year return breakouts

대한광통신 3,834.8%

KOSPI 미래산업 / KOSDAQ 대한광통신

2026-05-15

KOSPI heavyweight concentration

60.1%

3,686.8T KRW

2026-05-15

Trading value spikes

동양고속

20 names

2026-05-15

Foreign + institution co-buy

하나마이크론

20 names

2026-05-16

US market breadth

NYSE 22.7%

NYSE 22.7% / NASDAQ 23.4% / AMEX 11.1%

2026-05-16

US 52-week highs + turnover

J.B. Hunt Transport Services, Inc.

11 names

2026-05-16

US mega-cap concentration

25.54%

28.7T USD

Market breadth 52-week highs + turnover One-year return breakouts KOSPI heavyweight concentration Trading value spikes Foreign + institution co-buy US market breadth US 52-week highs + turnover US mega-cap concentration

daily

Foreign + institution co-buy

Stocks where foreign and institutional investors are both net buyers.

2026-05-15

Rank	Name	Market	Metric	Mkt Cap
1	하나마이크론 067310	KOSDAQ	95.9B KRW	3.5T KRW
2	SK스퀘어 402340	KOSPI	66.1B KRW	144.9T KRW
3	두산로보틱스 454910	KOSPI	61.2B KRW	8.3T KRW
4	휴림로봇 090710	KOSDAQ	48B KRW	1.6T KRW
5	현대제철 004020	KOSPI	47.6B KRW	6.2T KRW
6	제주반도체 080220	KOSDAQ	34.3B KRW	2.8T KRW
7	HL만도 204320	KOSPI	33.2B KRW	2.9T KRW
8	한미약품 128940	KOSPI	29.9B KRW	6.1T KRW
9	LIG디펜스앤에어로스페이스 079550	KOSPI	29.8B KRW	18.3T KRW
10	JYP Ent. 035900	KOSDAQ	28.9B KRW	2.3T KRW
11	삼성화재 000810	KOSPI	26.6B KRW	24.7T KRW
12	올릭스 226950	KOSDAQ	26.6B KRW	3.4T KRW
13	POSCO홀딩스 005490	KOSPI	24.9B KRW	37T KRW
14	자화전자 033240	KOSPI	21B KRW	1.2T KRW
15	레인보우로보틱스 277810	KOSDAQ	18.9B KRW	15.7T KRW
16	SFA반도체 036540	KOSDAQ	18.8B KRW	1.4T KRW
17	하이젠알앤엠 160190	KOSDAQ	18.4B KRW	1.2T KRW
18	현대차2우B 005387	KOSPI	15.8B KRW	9.8T KRW
19	두산테스나 131970	KOSDAQ	14.6B KRW	3.4T KRW
20	코나아이 052400	KOSDAQ	13B KRW	1T 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.