This calculation method assesses investment performance by considering the impact of cash flows into and out of an account. Unlike time-weighted return, this approach directly reflects the investor’s experience by factoring in the size and timing of deposits and withdrawals. For instance, if a large deposit occurs just before a period of poor performance, the resulting return will be significantly affected, mirroring the actual outcome for the investors portfolio value.
Understanding performance in this way provides a more realistic picture of how an investment strategy has performed for the specific investor, taking into account their individual contribution and withdrawal patterns. It acknowledges that investors rarely maintain a purely passive buy-and-hold approach. This method offers a more personalized performance assessment compared to other methods that primarily focus on the inherent performance of the investment itself, regardless of investor activity. It is particularly useful for evaluating portfolios where significant cash flows occur regularly, as it demonstrates the actual impact of these transactions on overall portfolio growth. The use of this calculation has grown in importance as investors seek more transparency and relevance in performance reporting.
