SpaceX's planned IPO, potentially the largest in history, has raised alarms over its decision to waive the traditional lock-up period. This waiver would allow insiders to sell shares immediately upon trading, exposing retail investors to heightened risk. The move reflects a broader trend that has quietly eroded investor protections over the past decade, according to legal experts.

Underwriter discretion to waive lock-ups was virtually nonexistent before 2010 but appeared in most S-1 filings by 2022. Legal scholars warn this weakens Section 11 liability protections, which hold issuers accountable for material misstatements in registration statements. The Supreme Court's 2023 Slack Technologies decision compounded the problem by requiring investors to prove they bought "traceable" shares to bring claims.

The SEC has known about this issue for years but has taken no action despite recommendations from its own advisory committee. A proposed fix would require a 90-day holding period for unregistered shares, restoring protections that existed before 1972 rule changes. Without intervention, retail investors entering the market on day one would face the highest premium with the weakest legal safety net.