
South Korea’s main board index, the KOSPI, closed up 0.97% at 6,808.21, while the tech‑heavy KOSDAQ slipped marginally 0.03% to 826.87. The market was led by a rally in construction and energy firms, especially those linked to nuclear and data‑center projects, offsetting broader weakness.
DaewooEngineering&Construction (047040) +8.40%

Analyst consensus — 16 ratings, last 180 days · avg target ₩22,700
Daewoo Engineering & Construction surged 8.4% to close higher, buoyed by investor confidence after the firm announced large new contracts. Analysts highlighted expectations that high‑margin nuclear and LNG projects, together with housing‑renovation work, will boost earnings [1][2]. The stock also stood out by maintaining a 4%‑plus gain while the broader market fell sharply, drawing additional attention [4]. This momentum was reflected in net buying by foreign investors, who added roughly KRW 116 bn to the stock today.
HyundaiEngineering&Construction (000720) +7.50%

Analyst consensus — 21 ratings, last 180 days · avg target ₩175,381
Hyundai Engineering & Construction jumped 7.5% after market commentary linked its rally to heightened expectations of U.S. nuclear plant expansions in the second half of the year [7][12]. The prospect of additional contracts in the U.S. nuclear sector has lifted sentiment, while simultaneous net buying from both foreign and institutional investors amplified the buying pressure [10]. The stock’s performance underscores the broader optimism for Korean EPC firms tied to overseas nuclear projects.
KEPCO Engineering & Construction (052690) +13.63%

Analyst consensus — 12 ratings, last 180 days · avg target ₩184,250
KEPCO Engineering & Construction rallied 13.6% as the broader KEPCO group experienced a sharp rally, lifting related stocks across the board [16]. Rising optimism around nuclear energy pushed the entire nuclear‑focused segment higher, with KEPCO Tech climbing 10‑15% and feeding momentum into its construction arm [17][18]. The chain reaction highlighted investors’ focus on Korea’s nuclear rollout, driving a sizable intraday gain for the subsidiary.
GS Engineering & Construction Corp (006360) +8.00%

Analyst consensus — 19 ratings, last 180 days · avg target ₩40,316
GS Engineering & Construction rose 8% after securities firms sharply upgraded its target price, citing the firm’s accelerating data‑center business and the expected upside from the Donghae AIDC project worth up to KRW 12 trillion [19][20][24]. The upgraded valuations reflect confidence that the data‑center segment will generate robust cash flow, while the potential large‑scale order in the advanced industrial zone adds to growth expectations. The combined catalyst drove notable buying pressure throughout the session.
KoreaElectricPower (015760) +6.42%

Analyst consensus — 16 ratings, last 180 days · avg target ₩53,067
Korea Electric Power surged 6.4% amid circulating rumors that the U.S. government and Westinghouse are considering a joint acquisition of a stake in the utility, sparking an 8‑11% price jump in the morning session [25][26][27]. A follow‑up report noted that improved buying pressure lifted the stock another 3% by the close [30]. While the acquisition talk remains unconfirmed, the speculation alone was enough to drive a sharp rally in the state‑owned power company.
Sources
- "과도한 주가 조정" 삼성전자, 목표주가 37만원…대우건설, 대규모 신규 수주 자신감 [株토피아] — 파이낸셜뉴스 · 2026-08-26
- 한화證 대우건설, 신규수주·주택 개선에 원전·LNG 기대…목표주가 204%↑ — 아주경제 · 2026-08-25
- 대우건설 주가 상승 중 — 아시아뉴스통신 · 2026-08-26
- 대우건설, 국내 증시 급락에도 주가 4%대 강세…동향 커브 주시 — CBC뉴스 · 2026-08-25
- 대우건설 주가, 8월 24일 장중 15,910원 0.13% 하락 — 톱스타뉴스 · 2026-08-24
- 대우건설 주가 하락 중 — 아시아뉴스통신 · 2026-08-24
- 현대건설 주가 장중 9%대 강세, 하반기 미국 원전 확대에 따른 추가 수주 가능성 부각 — 비즈니스포스트 · 2026-08-25
- 현대건설 주가, 8월 25일 장중 114,700원 8.62% 상승 — 톱스타뉴스 · 2026-08-25
- [특징주] 증권가 하반기 원전 기대감 크다…현대건설, 8% 강세 — v.daum.net · 2026-08-25
- [장중수급포착] 현대건설, 외국인/기관 동시 순매수… 주가 +12.03% — 뉴스핌 · 2026-08-25
- 현대건설 주가, 급등세... 왜? — 금강일보 · 2026-08-25
- 현대건설 주가 10% 급등 "美 신규 원전 추진 기대" — gukjenews.com · 2026-08-25
- 한전기술 주가, 웃음꽃 활짝... 장중 10만원 돌파 — 금강일보 · 2026-08-25
- 한전기술 주가, 8월 26일 장중 126,700원 16.66% 상승 — 톱스타뉴스 · 2026-08-26
- 한전기술, 향후 모멘텀은?…“2분기 실적 부진은 일시적” — CBC뉴스 · 2026-08-25
- 한국전력 11%대 급등…한전기술도 21%↑ — 이코노뉴스 · 2026-08-26
- 원전株 동반 강세…한전기술 10%·현대건설 9%↑ — 매일신문 · 2026-08-25
- [특징주] 한전기술, 원전 기대감 속 15%대 급등…수급 동향 주목 : 기업주식정보 — 재경일보 · 2026-08-26
- NH투자 "GS건설 목표주가 상향, 그룹 데이터센터 사업 본격화 국면" — 비즈니스포스트 · 2026-08-24
- NH證 GS건설, 데이터센터 사업 본격화…목표주가 27.3%↑ — 아주경제 · 2026-08-23
- GS건설 주가, 8월 25일 35,000원 3.24% 상승 마감 — 톱스타뉴스 · 2026-08-25
- GS건설, 데이터센터 사업 긍정 평가에 주가 상승 — gukjenews.com · 2026-08-25
- GS건설 주가 상승 중 — 아시아뉴스통신 · 2026-08-26
- GS건설 목표가 줄줄이 올린 증권가…"동해 AIDC로 12조 잠재 수주" — 연합인포맥스 · 2026-08-26
- 한국전력 주가 장중 8%대 상승, 미국 정부와 웨스팅하우스 공동 인수설 영향 — 비즈니스포스트 · 2026-08-26
- [특징주] 한국전력, 美 웨스팅하우스 지분 공동 인수 제안.. '급등' — 글로벌이코노믹 · 2026-08-26
- 한국전력 11%대 급등…한전기술도 21%↑ — 이코노뉴스 · 2026-08-26
- 한국전력 주가 하락중 — 아시아뉴스통신 · 2026-08-24
- [특징주] 한국전력, 웨스팅하우스 지분확보설 +8%대 상승 — 전국매일신문 · 2026-08-26
- 한국전력, 수급 개선 속 3%대 강세 마감 : 한국증시 — 재경일보 · 2026-08-25
This is market commentary, not investment advice.