Sébastien Page is the Chief Investment Officer for one of the world’s largest financial portfolio management companies, where he leads a team entrusted with more than $500 billion in actively managed assets.

Four years ago, Sébastien turned the same rigorous analytical lens he applies to markets toward a different challenge: what truly drives effective leadership. Drawing on deep research across positive psychology, sports psychology, and personality science, he discovered that the qualities that make a world-class portfolio manager are strikingly similar to those that shape exceptional people managers. Sébastien has now distilled these insights into a compelling new book outlining 18 core principles that consistently produce high-performance leaders — of teams, and of themselves.

This week, Sébastien shares with roving reporter Rotbart the lessons, frameworks, and practical behaviors that he believes can turn average performers into standouts. Rotbart rates Sébastien’s leadership insights “a strong buy.”