MicroStrategy is projected to have a 70% chance of joining the S&P 500 by December 19, 2025, according to 10x Research. This potential inclusion is largely attributed to an anticipated $3.8 billion gain from its Bitcoin holdings, which will be detailed in its Q3 earnings report on October 30. Despite a slowdown in Bitcoin acquisitions and a decrease in market net asset value, MicroStrategy remains a significant corporate Bitcoin holder, with its upcoming earnings report possibly serving as a catalyst for its S&P 500 entry.