Tesla, the electric vehicle and solar energy company, will join the S&P 500 Index on a full float-adjusted market capitalisation weight on 21 December, S&P Dow Jones Indices announced.
The decision will send more than a murmur through the entire stock market as money managers adjust their portfolios to make room for shares of the US$538 billion company.
Tesla’s market capitalisation is larger than any other company had at its debut in the S&P 500. Berkshire Hathaway previously held that record, worth about US$127 billion when it was included in the index in 2010.
Due to Tesla’s market valuation, S&P Dow Jones Indices consulted with investors last month on whether the stock should be folded into the index all at once or in two parts, which would have been unprecedented.
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Tesla, whose Co-Founder and CEO is Elon Musk, will be the seventh-biggest company in the S&P 500 at its current market value. The five most valuable businesses on the S&P 500 are Apple, Microsoft, Amazon, Facebook and Google’s parent company Alphabet.
“After the market close on Friday 11 December, pro forma files will be distributed and a press release will be published announcing which company Tesla will replace in the S&P 500,” S&P Dow Jones Indices said in a press release.
Tesla stock rose more than four per cent in post-market trading after S&P Dow Jones Indices announced the plan on Monday. Tesla shares are up about 580 per cent this year.
Wall Street estimates project up to US$100 billion of demand for Tesla shares from exchange trade funds and money managers that track and use the S&P 500 as a performance benchmark. In total, US$11.2 trillion of investment fund assets are linked to the S&P 500.
Howard Silverblatt, Senior Index Analyst at S&P Dow Jones Indices, said Tesla’s “current market value (adjusted for float) of US$437 billion would produce US$72.7 billion in required trades, in addition to the normal rebalancing trades” on the day of its inclusion, the Financial Review reported. That would dwarf the normal activity required when the S&P 500 is reshuffled.
The last 20 rebalancing days had an average of US$27.1 billion in trades, Silverblatt calculated, with a record of US$50.8 billion set in September 2018.