This week's highlight: Space X going public, and the U.S. stock market is about to face a stress test! $1.78 trillion—already surpassing most of the global publicly listed tech giants. A lot of people think that after Space X goes public, retail investors will be the biggest buyers. But Wall Street doesn’t see it that way—the real first batch of buyers is likely to be index funds. Nasdaq has already updated its rules: Space X can be included in the Nasdaq-100 just 15 trading days after its IPO. FTSE Russell’s inclusion waiting period is only 5 trading days. This means a massive wave of ETFs and index funds will be passively buying in. Nasdaq’s corresponding passive buy-in is estimated at around $8 billion—this is the most certain inflow of funds within the first week of the IPO. So here’s the big question: Funds don’t create money out of thin air. Where will the $8 billion buying power for Space X come from? Which heavyweight stocks will see reduced positions to free up cash?