Complex Systems with Patrick McKenzie (patio11) Complex Systems with Patrick McKenzie (patio11)

How brokerage transfers actually work

Jun 4, 2026 · 43m

Summary

Patrick McKenzie explains ACATS, the system for transferring brokerage assets, highlighting its reliance on trust over verification and the resulting fraud risks. He details how brokerages often skip customer confirmation to meet strict deadlines, leaving accounts vulnerable to identity theft. The episode covers recent FINRA proposals to add fraud "speed bumps" and analyzes industry comment letters from Fidelity, Apex Clearing, and Robinhood regarding these regulatory changes.

Topics discussed

Introduction to ACATS and account transfers FINRA, Rule 11870, and the Fool Rule The nature of stock ownership and ACATS history The ACATS transfer process and lack of verification The three-day rule and signature validity ACATS fraud mechanics and regulatory response Sponsor reads: Mercury and Granola Medallion guarantees and penny stock anecdotes New FINRA proposals on fraud and vulnerable adults Industry feedback from Fidelity, Apex, and Robinhood
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