Ukrainian women in Vienna, Austria, attend a protest on the 1,000th day of the start of the war in Ukraine, Nov. 19. AFP-Yonhap

Companies anticipated to benefit from postwar Ukraine reconstruction are rallying in the stock market as U.S. President-elect Donald Trump is poised to end the war.

Trump bragged that he would end the war in "just one day," raising speculation that the yearslong war will end soon, as he won the Nov. 5 presidential election for his second term.

Against this backdrop, companies in construction, machinery, communication, agriculture and other relevant sectors have been on an upward trajectory on the benchmark KOSPI and secondary bourse Kosdaq.

Sambu Engineering advanced 6.04 percent to close at 1,247 won on the benchmark KOSPI, Tuesday, marking a more than two-fold surge from Nov. 5 at 540 won.

A construction company, Sambu Engineering, is categorized as a stock linked to postwar Ukraine as it has been actively preparing to help rebuild the country.

According to industry sources, the company has been contacting Ukraine's presidential office since May this year to discuss projects on industrial complexes and commercial districts.

A machinery unit of HD Hyundai, HD Hyundai Infracore closed at 7,790 won on the KOSPI, Tuesday, finishing at the highest level post-U.S. presidential election.

Also an affiliate of HD Hyundai, HD Hyundai Construction Equipment climbed from 50,600 won to 66,200 won between Nov. 5 and Tuesday.

In the communications sector, Kosdaq-listed Dasan Network improved from 3,265 won to 3,920 won over the same period.

Daedong Industrial, an agricultural machinery manufacturer, finished above the 10,000 won mark for the fourth consecutive trading day since the U.S. presidential election on Tuesday. It ended at 11,130 won, compared to 8,390 won on Nov. 5.