RARE PHOTOS: Should you buy vertiv stock before march 23 | Rare Historical Photos

On March 9, Vertiv Holdings (VRT) jumped 9.3% in a single session, briefly touching $265, an all-time high for the data center infrastructure company. On March 10, it rallied by another 2.7% to $271.43, and this morning, March 11, VRT briefly hit another high of $276.68.

The catalyst? Vertiv was selected for inclusion in the S&P 500 Index ($SPX), effective before the opening bell on March 23. When a stock joins the S&P 500, index funds and exchange-traded funds (ETFs) that track the benchmark are required to buy it.