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Nov. 21, 2019, 10:59 a.m. EST

The world’s best-performing stock just became the world’s worst overnight

MSCI drops plan to add ArtGo to indexes

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By Shawn Langlois, MarketWatch

The Wall Street Journal on Wednesday told investors that a “ mysterious marble bubble ” was coming soon to your index funds.

Turns out that‘s not happening.

A day later, and the stock, which had rallied 3,800% since the beginning of the year, is in a death spiral. Shares of marble-miner ArtGo /zigman2/quotes/206806078/delayed HK:3313 +2.08% were down 98% Thursday, shedding $5.7 billion in market value in the process.

Among global companies with a market cap of at least $1 billion, ArtGo, prior to Thursday’s brutal session, had enjoyed the biggest gain of the year, according to Bloomberg . But that all went poof in a big way when New York-based MSCI dropped plans to add the company to its indexes.

ArtGo, which has been awash in red ink for two years, apparently didn’t meet the necessary standards for MSCI listings after the index-compiler said “further analysis and feedback from market participants on investability.”

Needless to say, that’s unwelcome news for shareholders.

HK : Hong Kong
HK$ 0.10
+0.0020 +2.08%
Volume: 12.45M
Sept. 23, 2020 11:32a
P/E Ratio
Dividend Yield
Market Cap
HK$387.14 million
Rev. per Employee

Shawn Langlois is an editor and writer for MarketWatch in Los Angeles. Follow him on Twitter @slangwise.

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