Tesla was added to the S&P index on December 21, 2020; it was the most valuable company ever added, and was the sixth-largest member of the index immediately…
Tesla was added to the S&P index on December 21, 2020; it was the most valuable company ever added, and was the sixth-largest member of the index immediately after it was added.
Event text from Wikipedia: “Tesla, Inc.” (linked citation above)