KOSPI gives the go signal for Hyundai Rotem Co's IPO. This forecasts high gains for its majority holders Hyundai Motor and Morgan Stanley.

Recent companies who have gone public raised only $222.64 million (251 billion won) way below Samsun Life's 10.1 trillion won back in 2010.

On Tuesday it was disclosed that Hyundai's Rotem IPO final numbers has yet to be finalized. This is according to a source with first-hand information regarding the matter. It is estimated to be worth around 500 billion won, as cited by bank sources but prefer to be anonymous. Other sources say such as Chosun biz, the offering could even reach up to 1 trillion won.

No comment was given by any of Hyundai's representative to date.

Morgan Stanley owns minority of the stake, where as Hyundai Motor is the major stake holder with shares upto 57.6%. Last year, Hyundai Rotem declared a net profit of 78.4 billion won and 3.07 trillion won of revenue.

Bank of America, Merrill Lynch, and KDB Daewoo served as its lead managers for its initial public offering.