KOSPI Surges Above 7,000 Level Led by Chip and Nuclear Energy Gains

The Korean markets opened on a positive note during the morning session, with the benchmark KOSPI jumping 1.07% to 7,070.41, while the tech-heavy KOSDAQ edged up 0.10% to 823.01. The Korean Won stood at 1,346.56 against the US Dollar. The upward momentum was primarily driven by a strong performance in semiconductor and nuclear energy sectors, buoyed by favorable global cues.

SK hynix (000660) +3.59%

SK hynix chart

Price now₩1,849,000
Prev close₩1,783,000
Change+3.70%
Mkt cap₩1,350.7T
P/E31.36
P/B10.77
EPS₩58,955
ROE92.68%
Debt ratio32.80%
52W range₩274,000–2,987,000

Analyst consensus — 22 ratings, last 180 days · avg target ₩3,306,818

Buy22
Hold0
Sell0

SK hynix rose 3.59% in the morning session, driven by a positive tailwind from US semiconductor stocks and a general rally among global memory chipmakers [1][4]. Investor sentiment was further bolstered by reports that memory semiconductor inventories have decreased to under 10 days, prompting expectations that the stock price could break past $185 [5]. Additionally, local brokerages issued strong buy recommendations with high target prices, adding further upward momentum [3].

Sky Labs Inc. (386380) +22.26%

Price now₩37,325
Prev close₩30,550
Change+22.18%
Mkt cap₩700B
P/E0
P/B0
EPS
ROE
Debt ratio
52W range₩8,200–39,350

Newly listed Sky Labs Inc. surged 22.26% following its recent debut on the KOSDAQ market, where it experienced a massive initial rally [8][10][12]. The primary driver behind this strong momentum is the presentation of clinical data and achievements for its ring-type blood pressure monitor, CART, at the European Society of Cardiology [7][11]. While the stock showed some early volatility, it quickly rebounded to log substantial gains [12]. Other internal corporate factors remain unconfirmed.

DOOSAN ENERBILITY (034020) +2.96%

DOOSAN ENERBILITY chart

Price now₩90,700
Prev close₩87,900
Change+3.19%
Mkt cap₩58.1T
P/E687.12
P/B7.46
EPS₩132
ROE2.30%
Debt ratio136.43%
52W range₩57,000–139,200

Analyst consensus — 15 ratings, last 180 days · avg target ₩127,000

Buy15
Hold0
Sell0

DOOSAN ENERBILITY climbed 2.96% amid growing expectations for US nuclear power projects, highlighted by plans to construct eight new nuclear reactors in the United States [14][18]. The company's stock was also propelled by its designation as the first "US Investment" project, which materializes a massive 30 trillion KRW power generation project in Texas [16]. While analysts noted three key variables currently surrounding the company's stock price, specific details remain unconfirmed [13].

JUSUNG ENGINEERING Co.,Ltd. (036930) +7.91%

JUSUNG ENGINEERING Co.,Ltd. chart

Price now₩204,500
Prev close₩187,200
Change+9.24%
Mkt cap₩9.5T
P/E270.86
P/B15.83
EPS₩755
ROE1.23%
Debt ratio46.37%
52W range₩26,350–283,000

Analyst consensus — 2 ratings, last 180 days · avg target ₩204,500

Buy2
Hold0
Sell0

JUSUNG ENGINEERING advanced 7.91% as investor enthusiasm reignited over robust semiconductor equipment orders and a solid order backlog [20][23]. The stock's upward trajectory was also supported by a broader rise in the LED equipment theme [22]. Furthermore, positive supply-demand dynamics were aided by foreign investors net purchasing the stock on the KOSDAQ market [21]. Specific details regarding the company's earnings turnaround timeline or exact order sizes remain unconfirmed.

DaewooEngineering&Construction (047040) +7.28%

DaewooEngineering&Construction chart

Price now₩19,830
Prev close₩18,410
Change+7.71%
Mkt cap₩8.1T
P/E-9.03
P/B2.43
EPS₩-2,195
ROE-14.26%
Debt ratio266.54%
52W range₩3,320–40,350

Analyst consensus — 17 ratings, last 180 days · avg target ₩22,656

Buy15
Hold2
Sell0

Daewoo Engineering & Construction jumped 7.28% following massive contract disclosures and high expectations for a 27 trillion KRW order in the nuclear and LNG sectors, alongside potential negotiated contracts for the Gadeokdo New Airport [26][28][30]. Strong simultaneous net buying by foreign and institutional investors heavily boosted intraday demand [25]. Additionally, anticipation surrounding Bill Gates' scheduled visit to Korea fueled speculative interest [27]. Specific intraday drivers behind the broader nuclear sector rally remain unconfirmed [29].

Sources

  1. SK하이닉스 ADR 상장 시초가 '170달러' 회복…메모리 반도체 기업 강세 — 연합인포맥스 · 2026-09-04
  2. 다시 꿈틀대는 SK하이닉스 주가…향후 핵심 이벤트 6가지 — 한국경제 · 2026-09-04
  3. 목표가 67만원·470만원 제시…증권가, 삼성전자·SK하이닉스 ‘강력 매수’ 의견 [수민이가 궁금해요] — v.daum.net · 2026-09-07
  4. SK하이닉스 주가 장중 5%대 올라, 미국 반도체주 훈풍에 삼성전자도 강세 — 비즈니스포스트 · 2026-09-07
  5. SK하이닉스 주가 전망: 메모리 반도체 재고 10일 치 미만으로 감소, 주가 185달러 돌파 전망 — TradingKey · 2026-09-07
  6. SK하이닉스 주가, 급등세... 왜? — 금강일보 · 2026-09-07
  7. [특징주] 스카이랩스, 유럽심장학회서 반지형 혈압계 임상 데이터 발표에 상한가 마감 — 바이오타임즈 · 2026-09-07
  8. [ET특징주] '반지형 혈압계' 스카이랩스, 코스닥 입성 첫날 140%↑ — 전자신문 · 2026-09-04
  9. [특징주] 스카이랩스, 상장 사흘째 상승세… 11%대 급등 - 조선비즈 — Chosunbiz · 2026-09-08
  10. 스카이랩스, 오늘 코스닥 입성…오전 주가 강세 — 데일리메디 · 2026-09-04
  11. 스카이랩스 주가 19% 급등...CART 혈압계 임상성과 공유 — gukjenews.com · 2026-09-07
  12. [속보] 스카이랩스, 장초반 약세 딛고 주가 ‘더블’…주가 변동폭은 유의 — CBC뉴스 · 2026-09-04
  13. 두산에너빌리티 주가 둘러싼 '세가지 변수' [B급기자의 B급리포트] — v.daum.net · 2026-09-04
  14. [오늘의 주목주] '미국 원전 사업 기대감' 두산에너빌리티 주가 10%대 올라, 코스피 '반도체 강세'에 6990선 상승 마감 — 비즈니스포스트 · 2026-09-07
  15. 두산에너빌리티 주가, 9월 4일 장중 79,400원 0.25% 상승 — 톱스타뉴스 · 2026-09-04
  16. [특징주] 대미투자 1호에 두산에너빌리티 11% 급등…30조원 텍사스 발전사업 현실화 — moneystorm.kr · 2026-09-07
  17. 두산에너빌리티 주가 장중 강보합…8만원선 놓고 공방 — CBC뉴스 · 2026-09-04
  18. "미국 내 원전 8기 건설 추진" 두산에너빌리티 6%대 급등 - 머니투데이 — 머니투데이 · 2026-09-08
  19. 주성엔지니어링 주가, 9월 7일 장중 186,400원 4.54% 상승 — 톱스타뉴스 · 2026-09-07
  20. [특징주] 주성엔지니어링(036930), 반도체 수주 탄탄…실적 전환 속도 관건 — 인천일보 · 2026-09-06
  21. 02일, 외국인 코스닥에서 주성엔지니어링(+0.40%), 원익IPS(-0.27%) 등 순매수 — 씽크풀 AI · 2026-09-06
  22. 특징주, 주성엔지니어링-LED장비 테마 상승세에 3.52% ↑ — 매일경제 마켓 · 2026-09-07
  23. 주성엔지니어링 18만원 눈앞 ‘6% 급등’…반도체 장비 수주 기대 다시 불붙었다 — 잡포스트 · 2026-09-04
  24. 주성엔지니어링 주가, 9월 7일 장중 187,300원 5.05% 상승 — 중앙이코노미뉴스 · 2026-09-07
  25. [장중수급포착] 대우건설, 외국인/기관 동시 순매수… 주가 +5.28% — 뉴스핌 · 2026-09-07
  26. 대우건설, 가덕도 신공항 수의계약 기대감에 주가↑ — gukjenews.com · 2026-09-06
  27. [대우건설 주가전망] 빌게이츠 방한 일정속 대우건설 혼자 폭등 준비하는 이유 8/7 Mercato Immobiliare (6x9749MNMz) — Mshale · 2026-09-04
  28. 대우건설 장 막판 9% 급등, 1만8400원 돌파…원전·LNG ‘27조 수주’ 기대 — 잡포스트 · 2026-09-07
  29. 대우건설·DL이앤씨·GS건설 & 원전주 '장중 급등'...이슈는? — 초이스경제 · 2026-09-07
  30. 대우건설, 대규모 계약 공시 후 주가 상승세... 투자자 관심 집중 : 기업주식정보 — 재경일보 · 2026-09-07

This is market commentary, not investment advice.