Twitter's getting dumped by the S&P 500

Quick Take

  • Twitter will be removed from the S&P 500 index and replaced with Arch Capital Group after billionaire Elon Musk finally buys the social media company.

Bye-bye, Twitter. The S&P 500 is exiting Twitter (TWTR) from its stock market index on Nov. 1, after the social media company was sold to billionaire Elon Musk.

Global insurance, reinsurance and mortgage insurance company Arch Capital Group (NASD:ACGL) will replace Twitter before the markets open next month, the ratings firm said. Musk’s acquisition of Twitter is set to close tomorrow after months of going back and forth on the purchase and finally being sued by the company.

“Changes to index composition are made on an as-needed basis,” an S&P 500 representative said, adding that there is no scheduled reconstitution.

The S&P 500 offers provisions in its methodology for the deletion of a stock from its index, stating that companies may be removed if they are involved in a merger, acquisition or significant restructuring criteria.


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Twitter's stock is also set to be temporarily suspended by the New York Stock Exchange ahead of the deal, according to the exchange’s website.

Yesterday, Musk visited Twitter headquarters, carrying in his arms what appeared to be a bathroom sink, announcing to the world, "let that sink in." The joke is a glancing reference to Musk's on-again, off-again, often tortured pursuit of Twitter, which some analysts did not expect the billionaire to complete.  

© 2023 The Block. All Rights Reserved. This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice.

About Author

Jeremy Nation is a senior reporter at The Block covering the greater blockchain ecosystem. Prior to joining The Block, Jeremy worked as a product content specialist at Bullish and He also served as a reporter for ETHNews. Follow him on Twitter @ETH_Nation.


To contact the editor of this story:
Madhu Unnikrishnan at
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