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Len R
CFA®, Series 63
Ft. Lauderdale, FL
Greybox Investments
Len Rittberg is a CFA® charterholder based in Ft. Lauderdale, FL, with three years of industry experience. He currently works at Greybox Investments, where he has been since 2023. Prior to this, he spent six years at Exos Financial and nine years at Adelante Capital Management. Greybox Investments provides fee-only portfolio management primarily to individual and high-net-worth clients, charitable organizations, other registered investment advisers, and corporations. The firm employs a quantitative, multi-factor investment approach focused on scalable, model-driven portfolio construction and distribution to other advisers, emphasizing discretionary wealth management through separately managed and unified managed accounts.
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