What Is Line item?
In portfolio allocation, a line item is one holding or strategy shown separately in an account statement, allocation report, or performance table. Its displayed return describes that holding. Its contribution to the whole portfolio return depends on its allocation weight; its effect on portfolio risk also depends on how it moves with the other holdings. For example, a strategy with a 10% starting weight that loses 20% in a period contributes about -2 percentage points to that period’s portfolio return, before rebalancing.
Line-item risk describes the practical difficulty of holding a strategy whose standalone performance looks uncomfortable, even when it has a useful role in the wider portfolio. In Peter Hecht’s Flirting with Models episode, this is a design and sizing concern: an alternative strategy can have a large drawdown on its own while having a smaller, potentially diversifying effect at the portfolio level. Investors should examine both views so they can judge the strategy’s risk and maintain an allocation they can tolerate.
Listen to the Peter Hecht episode on Spotify.
See also