The folks that think it's a method to avoid day-one price pops are mostly incorrect. Price pops are intentional as selling 10% of your company at a discount fills up the IPO book much faster and causes 10x+ oversubscriptions. This signals strong demand to the majority of very large asset allocators who come in post-IPO. Those investors psychologically overvalue day-one pops years into the stock's public lifetime. I've had conversations with heads of tech investing at many $100bn+ funds who mention day-one pops when they enter a stock 5 years post-IPO. Doing the math, strong market confidence in your company pays dividends when you're selling the other 90%.