SEOUL, May 29 (UPI) -- South Korea's stock market has been ruled by traditional manufacturing companies, including Samsung Electronics, SK hynix, and Hyundai Motor.

However, KB Financial Group has broken into the top five firms by market capitalization this month, nudging past the country's largest automaker, Hyundai Motor, and defense giant Hanwha Aerospace.

The financial group's market capitalization climbed to $28.91 billion Monday to overtake Hanwha Aerospace, with $28.63 billion, and Hyundai Motor, with $27.69 billion.

Although Hanwha Aerospace reclaimed the No. 5 spot Tuesday, KB rebounded Wednesday. This marks the first time in roughly 15 years that KB Financial has become one of the five most valuable corporations in the Seoul bourse.

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