Cook on suitability vs best interest George Michael Gerstein • August 10, 2018 August 10, 2018 • News • Tags: Best Interest, SEC SEC Reg BI vs. Suitability: Here's the Difference, According to FINRA's Cook | ThinkAdvisor SEC’s advice proposals extend in “certain significant areas” the requirements for broker-dealers, Cook told senators. ThinkAdvisor Print Email LinkedIn Twitter Facebook