The market distortion from an IPO's index inclusion isn't a one-time event. As insiders' shares unlock months later, the public float increases. Nasdaq's rules will then force index funds to buy even more shares to match the new, higher float (multiplied by 3x), creating a recurring cycle of predictable, forced buying and price distortion.

To win SpaceX's listing, Nasdaq altered its rules for faster index inclusion and disproportionate weighting. This forces index-tracking funds to buy the stock, creating guaranteed demand and a powerful incentive for companies to list on its exchange.

By not fast-tracking SpaceX's inclusion, the S&P 500 withholds a crucial "wall of automatic demand" from passive index funds. This means when insider shares unlock, SpaceX must rely on active investors to buy them, potentially creating significant price volatility that would have otherwise been absorbed by passive inflows.

For highly-capitalized companies like SpaceX and OpenAI, bankers are designing new IPO structures. Instead of standard 90-180 day lockup periods, they're planning staggered share releases over a longer timeframe to manage immense selling pressure from a large base of private shareholders and prevent post-IPO stock volatility.

SpaceX arranged to be included in major indices like the NASDAQ 100 in just 15 days, versus the standard 90-day cooling-off period. This forces passive index funds to buy shares amidst peak hype, creating artificial demand and sidestepping normal price discovery mechanisms.

For companies like SpaceX, Nasdaq now allows index inclusion in just 15 days (down from six months) and artificially inflates weight by treating a 5% float as 15%. This creates a massive, predictable, and forced buying event from index funds, which must sell other holdings to accommodate the new stock, distorting the market.

NASDAQ altered its rules to allow SpaceX early entry into the NASDAQ 100 index, just 15 days post-IPO. This forces index funds to purchase billions of dollars worth of stock on a specific date, creating a predictable, short-term demand spike for early investors regardless of the company's long-term fundamentals.

By offering only a small fraction of its shares ($75B out of a trillion-dollar valuation), SpaceX is creating a supply-demand imbalance. This classic IPO strategy forces index funds and institutional investors to buy into a potential price bubble, risking significant losses when more shares eventually hit the market.

For trillion-dollar private companies like SpaceX going public, the traditional 90-180 day lockup period is inadequate. The massive volume of insider shares hitting the market at once could crash the stock. Investment bankers are now designing staggered lockup releases to manage this unprecedented liquidity event.