Dave Nadig, the longtime ETF analyst, went on Barry Ritholtz’s Masters in Business: At The Money podcast and described the upcoming SpaceX IPO as “one of those get-the-popcorn moments in markets.” The reason centers on index plumbing that most passive investors never think about. NASDAQ is reportedly waiving its standard six-month seasoning period so SpaceX ... SpaceX IPO Will Force Index Funds to Buy $7 Billion in One Day. What Happens to Nasdaq Next.