Shares of Veeva Systems (VEEV) are seeing a sudden spike after the S&P Dow Jones Indices ($DOWI) revealed that the life sciences software firm will join the S&P 500 Index ($SPX) before opening on May 7, 2026. Coterra Energy (CTRA) is being replaced by Devon Energy (DVN) as it completes the takeover of Coterra. However, adding a company to an index does not automatically improve its fundamentals. But it may have a positive impact when there is additional demand for its stocks. This applies to Veeva becaus ...