A collection of individually understandable trades can still produce a portfolio that is difficult to understand. The aggregate view matters.
Realized profit is one view
Closed trades describe completed outcomes. Open positions describe current exposure and unrealized gains or losses. Reading either in isolation can leave a large part of the portfolio story outside the frame.
Allocation changes the result
The same decision rule can produce different portfolio behavior under different sizing and capital settings. How much capital is assigned, how positions accumulate and how instruments interact all affect the experience of running a system.
Concentration can emerge gradually
A portfolio may become more exposed to a common market move even when it holds many instruments. Instrument count alone does not explain the direction, size or concentration of that exposure. Those need their own inspection.
Review risk with the result
A return figure becomes more meaningful when paired with drawdown, open exposure and capital usage over the same period. The goal is a connected reading of the system’s behavior rather than a selection of isolated favorable measures.
Portfolio visibility begins when realized outcomes and current exposure share the same frame.