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How serious self-directed investors actually run a book.
In-depth essays on personal investment policy, portfolio discipline, and the methodology Portivo uses to enforce a written IPS on every action.
A definitive guide
What is a personal Chief Investment Officer? (And do you need one?)
The canonical CIO role at institutions, the gap below the family-office threshold, the seven activities that make up the CIO function, and why software is the right form factor for self-directed investors at $250K–$10M.
A definitive guide
What is a personal Investment Policy Statement (and why you need one)
The five sections of a personal IPS — sizing, cash floor, thesis discipline, forbidden actions, behavioral profile — how it gets enforced in practice, and how Portivo derives, runs, and evolves one.