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Podcast Episode

[Series 66] 21, Diversification Correlation and Rebalancing

Open Exam Prep··15 October 2026·4 min

About this episode

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How diversification reduces unsystematic risk without eliminating market risk. - How correlation coefficients range from -1.0 to +1.0 and affect risk reduction. - Why any correlation coefficient below +1.0 provides diversification benefits. - How calendar and corridor rebalancing strategies restore target asset allocation. - How investment adviser representatives evaluate overall portfolio risk under fiduciary standards. OpenExamPrep provides independent study tools for the Series 66 exam. Practice questions and study guides are available at https://open-exam-prep.com/practice/series66 and video resources at https://www.youtube.com/@Open-exam-prep . Sources checked: September 14, 2026 https://www.nasaa.org/wp-content/uploads/2023/02/Series-66-Outline-June-2023.pdf https://www.finra.org/registration-exams-ce/qualification-exams/series66