Portfolio design.
Modern portfolio theory, the academic framework most financial advisors still build from, makes one core argument: it is not just what you hold that determines your risk, it is how those holdings move relative to each other. Two assets that both go up in a boom and both crash in a recession provide almost no real diversification, no matter how different they look on paper. Real diversification comes from holding things that do not move in lockstep.
Builders have an asset class most portfolio theory never accounts for: the operating businesses they build and run themselves. A consultancy, a SaaS platform, a ticketing engine, a trading system, a media brand, each one moves on its own schedule, driven by its own customers and its own decisions, largely uncorrelated with what public markets are doing that same week. Treating a venture portfolio the way an allocator treats a stock portfolio, thinking in terms of correlation and concentration risk rather than just picking favorites, changes the entire design conversation.
Concentration risk is the quiet killer of most builder portfolios. A founder whose entire net worth sits inside one venture, illiquid and undiversified by definition, is making a bet whether or not they think of it as one. Deliberate asset allocation for a builder means being honest about that concentration and deciding, on purpose, how much of it is acceptable, rather than discovering the answer during the venture’s worst quarter.
A dedicated framework document for this exact thesis is still being written. The underlying argument already runs in public on the Money and Platinum Wealth pages: a business you build and operate compounds differently, and often more controllably, than a stock you merely hold.