On March 18, 2026, Daewoo Construction’s stock price soared to new heights, captivating investors and industry watchers across South Korea and beyond. The sudden surge, which saw the stock climb as much as 20.89% in intraday trading, was not an isolated event but the culmination of a series of developments in the global energy landscape, the company’s strategic positioning, and a flurry of investor activity.
According to Business Post, at 10:20 AM, Daewoo Construction’s shares were trading at 14,640 KRW, up a remarkable 2,530 KRW from the previous day’s close of 12,110 KRW. The stock even touched an intraday high of 14,730 KRW, marking a 52-week peak. This rally was echoed across multiple financial news outlets, with CBC News reporting that at 9:43 AM, the stock stood at 13,840 KRW—a 14.28% jump from the day before. Notably, this wasn’t the stock’s first taste of upward momentum; from March 5 to March 13, Daewoo Construction enjoyed seven consecutive days of gains before a brief pause on March 16, only to rebound strongly on March 17 and 18, breaking the 14,000 KRW barrier during the session.
Driving this bullish sentiment were mounting expectations about Daewoo Construction’s role in the expanding global nuclear power market. As Business Post and Gyeonggi Ilbo highlighted, securities analysts pointed to the company’s steady accumulation of expertise in nuclear power plant engineering, procurement, and construction (EPC). Cho Jeong-hyun, a researcher at IBK Investment & Securities, noted on March 17 that "Daewoo Construction has steadily accumulated capabilities to re-enter the nuclear power plant EPC market and is likely to join as a business operator in the expanding US nuclear power market as part of Team Korea." Cho went on to set a target price of 14,500 KRW for the company, a figure that seemed well within reach as the stock flirted with new highs.
But what exactly is fueling this optimism? Part of the answer lies in the global energy crunch and shifting geopolitical winds. As Jeonmaeil News explained, the ongoing conflict in the Middle East, particularly tensions involving Iran, has sent international oil prices on a rollercoaster ride. On March 17, Brent crude for May delivery closed at 103.42 dollars per barrel, rebounding from losses the day before, while West Texas Intermediate (WTI) also posted gains. These price swings have stoked fresh interest in alternative energy sources, with nuclear power emerging as a key beneficiary. "The prolonged war concerns, the act's passage, and expectations for increased demand for alternative energy sources contributed to the rise in nuclear power-related stocks," remarked researchers Kim Seung-jun and Ha Min-ho from Hana Securities.
Another catalyst was the passage of the "Special Act on Strategic Investment Management between Korea and the US" at a Cabinet meeting on March 17, 2026. This legislative move, intended to facilitate cross-border investments and strategic cooperation, further buoyed investor sentiment towards companies like Daewoo Construction with ambitions in the US market.
Institutional and retail investors were quick to respond to these developments. On March 17, institutional investors snapped up 335,689 shares, while individual investors bought 150,776 shares, according to CBC News. Foreign investors, on the other hand, were net sellers, offloading 467,872 shares. Trading volumes were robust, with Joongang Economy News reporting that as of 10:00 AM on March 18, over 36.8 million shares had changed hands, amounting to a trading value of 501.43 billion KRW. By 11:24 AM, Jeonmaeil News noted that trading volume had ballooned to over 70 million shares, more than double the previous day’s tally.
Daewoo Construction’s impressive rally also stood out when compared to its industry peers. At 10:00 AM on March 18, the company’s stock was up 17.26% from the previous close, while the average price change for its sector was just 5.47%, according to Joongang Economy News. Similarly, Topstar News observed that at 9:44 AM, the company’s 15.03% rise far outpaced the sector’s 4.36% gain. This outperformance underscored the market’s conviction in Daewoo Construction’s unique position and prospects.
Market capitalization figures mirrored this surge. On the KOSPI market, Daewoo Construction’s value reached 5.9018 trillion KRW, ranking it 106th among listed companies. Foreign investors held an 11.22% ownership stake, amounting to over 46 million shares out of a total of 415 million shares outstanding. The previous trading day, the stock had opened at 12,230 KRW, reached a high of 12,910 KRW, and closed at 12,110 KRW, with a trading volume of 15.5 million shares—a figure that was easily surpassed on March 18 as interest intensified.
Beyond the numbers, analysts were quick to connect Daewoo Construction’s prospects to its growing pipeline of nuclear power projects. As Gyeonggi Ilbo reported, Cho Jeong-hyun emphasized the company’s accumulated experience not only in domestic nuclear plant construction but also in international projects like the Jordan research reactor. The company is now seen as a strong candidate to participate in the US nuclear market expansion as part of the so-called "Team Korea" consortium. The pipeline is also expanding to the Czech Republic’s Dukovany and Temelin plants, as well as potential projects in Vietnam and further domestic opportunities. Samsung Securities’ Heo Jae-jun echoed this optimism, stating, "Daewoo Construction is pursuing orders for the Dukovany and Temelin nuclear power plants in the Czech Republic, as well as projects in Vietnam and the US, in addition to domestic contracts. We expect the company to achieve the largest order volume ever this year."
Of course, the current rally comes with its risks and caveats. Several news outlets, including CBC News and Gyeonggi Ilbo, reminded readers that the information provided was for reference only and not investment advice. The volatile nature of energy markets, geopolitical uncertainties, and the competitive landscape for global EPC contracts mean that fortunes can turn quickly. Still, for now, Daewoo Construction stands as a symbol of South Korea’s ambitions in the next wave of global energy infrastructure.
As the trading day continued, all eyes remained on Daewoo Construction—not just for its remarkable stock performance, but as a bellwether for the broader themes shaping 2026: energy security, international cooperation, and the relentless search for alternatives in a world buffeted by conflict and change.