1. OpenAI's $40 billion offering bypasses the public market, affecting NDAQ's IPO landscape. 2. Number of public companies in U.S. has halved since the late 1990s, limiting growth. 3. SEC Chairman Paul Atkins pushes for wider access to private markets for investors. 4. Private fundraising dynamics lead to increased wealth disparity among investors. 5. Median age of companies going public has increased to 14 years, impacting NDAQ listings.