Tesla’s S&P 500 debut is expected to put $ 100 billion in transactions

Adding and subtracting to the S&P 500 is normally a ho-hum’s business. The 509th largest company in the United States could jump to 497th place, and therefore in the index. Investors who follow him buy one stock and sell another.

But no one has ever tried adding Tesla Inc., a $ 555 billion company subject to huge price swings. It’s happening next month and it’s causing headaches on Wall Street.

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