It may seem contradictory, since joining an important market index is a very good thing, requiring funds to adjust their holdings. In Tesla’s case, I see at least USD 8 billion would have to be invested through them. I tend to doubt this will automatically lead to a massive increase in valuation. Index funds may already have positions based on a variety of investment vehicles, such as options that can be turned into shares without any relevant influence on the price. Perhaps out of pure contrariness, the stock could turn sour when things are looking their best because analysts, investors and the media see only rising prices, completely ignoring the risks.