Jack is the Co‑Founder and Executive Chair of Income Research + Management (IR+M), a specialist fixed income firm managing approximately $131B (as of 12/31/25). We cover his father‑son origin, first‑principles discipline, and how focus and culture power a client‑first edge—plus independence, balance, succession, and where their portfolio construction diverges.

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(As of December 22, 2025)

#111: Jack Sommers: Culture, Principles, Focus, Always