SEOUL - The South Korean entertainment company behind world-famous K-pop boy band BTS made a strong market debut in Seoul on Thursday, soaring 91 percent above its initial public offering price.Big Hit Entertainment Co.'s entry to the Korea Exchange had attracted strong interest from institutional investors following the company's meteoric rise on the back of the seven-member band's worldwide popularity.The stock opened at 270,000 won ($235), double the IPO price of 135,000 won, and briefly rose 30 percent to 351,000 won, the daily upper limit. But it fell back and ended the day at 258,000…READ FULL ARTICLE