By Joyce Lee and Scott Murdoch
SEOUL/HONG KONG (Reuters) -Shares in Krafton Inc, the Tencent Holdings-backed South Korean company behind blockbuster video game "PlayerUnknown's Battlegrounds" (PUBG), fell as much as 20% on their trading debut on Tuesday.
Analysts attributed the share tumble of South Korea's second-largest IPO to an expensive valuation and China regulation risks, with gaming companies facing uncertain prospects after China regulators have come down hard on a number of industries, upending norms with new guidance and rules.
Krafton shares opened down 9.9% from their IPO price of 498,000 won, making it South Korea's lowest trading debut since LG Philips LCD, now LG Display (NYSE:LPL), first went public in 2004, according to data from Refinitiv Eikon.
The stock closed down 8.8% from the IPO price, valuing the company at about $19.32 billion.
"This was a classic case of the owners being a bit too greedy in their valuation assessment of the company. Although the IPO price range was lowered, it was not lowered enough," said Douglas Kim, an independent analyst, who publishes on Smartkarma.
Krafton derived 87% of its revenue from Asia excluding South Korea in the January-March quarter, a large portion of which is estimated by analysts to come from sales in China handled by Tencent.
Krafton earns fees by providing technology services for "Peacekeeper Elite", a game similar to "PUBG Mobile" that Tencent distributes and is usually among China's top two grossing games, it said in an IPO filing.
"About 70% (of sales) appear to be from Tencent," LightStream Research analyst Mio Kato, who publishes on Smartkarma, told Reuters.
"China has already made noises about (Tencent's) 'Honor of Kings' ... If they also request changes for 'Peacekeeper Elite' that would be a negative and could be a very large negative."
Shares in Tencent and global gaming companies with China exposure such as Activision Blizzard (NASDAQ:ATVI) tumbled last week after the Economic Information Daily, which is affiliated with the official Xinhua Agency, called online gaming "spiritual opium".
Tencent quickly said it would further curb minors' access to its flagship video game "Honor of Kings".
Still, Krafton raised $3.75 billion in South Korea's second-largest IPO after Samsung (KS:005930) Life Insurance's float in 2010, even after the firm cut its fund-raising target by a quarter after regulators ordered it to revise its filings.
Based on market capitalisation, Krafton was benchmark KOSPI's 19th biggest stock on Tuesday, excluding preferred shares.
Some 65% of the IPO proceeds will go to Krafton, which plans to use the bulk of the funds to acquire other gaming companies. The remainder went to shareholders cashing out their investments.
More large offerings are in the pipeline in what is shaping up to be a bumper year for South Korean stock market floats, including EV battery maker LG Energy Solution and payments firm Kakao Pay, which is backed by China's Ant Financial.
($1 = 1,148.9900 won)