What is a Value Added Monthly Index (VAMI)?
A value-added monthly index (VAMI) tracks the monthly performance of a hypothetical $1,000 investment, assuming reinvestment, over some time.
Understanding a Value Added Monthly Index (VAMI)
A value-added monthly index shows an investor’s overall return over a specific period. It covers capital gains and the reinvestment of all payouts, including dividends and compound interest accrued. Another essential feature is that VAMI is derived using NET monthly returns. This indicates that the actual return remains after all relevant expenses, including management, incentive, and brokerage fees, have been subtracted.
This is among the most often used measures to show investors a fund’s overall performance. The popularity of VAMI is due to its descriptive nature, which allows an investor to see how $1,000 has been done over a specific period and its ease of understanding.
There are many uses for a value-added monthly index. It could shed light on how invested money has increased over time. It may sometimes be used to assess a fund manager’s performance. When comparing various funds and index benchmarks, it is also beneficial. The VAMI for the current month is determined by multiplying the VAMI from the previous month by the NET return.
VAMI initial point = 1,000 * (1 + NET return for the current month)
VAMI Subsequent = VAMI Previous x (1 + NET return for the current month)
Utilizing VAMI to Compare
VAMI charts may be a trustworthy tool when comparing the growth of different funds and benchmarks throughout the market. These charts allow investors to personalize their selections within a fund company’s family of funds. Investors may see how an investment has fared over time by using VAMI charts. They could also shed light on reasonable expectations for subsequent estimates.
With benchmark returns added for a more thorough study, VAMI charts may also visually depict how funds from other asset class categories or comparable funds have done over a specific period.
Tools VAMI
VAMI tools are available on several market platforms for investor research. These tools may accept different inputs, such as periods and more significant beginning capital levels.
It is possible to create a value-added monthly index using technological programming. Usually, it starts with a $1,000 hypothetical investment. Initial investment amounts, however, might differ. Because data quality may distort anticipated results, verifying that data is available and suitable for appropriate charting while using this modeling approach is crucial. One can create VAMI charts using Microsoft Excel or other technical software applications. Financial services firms often provide online versions to depict investment values over time.
Morningstar offers a mutual fund research service that includes the VAMI tool as an example. Investors can see the fictitious growth of a $10,000 initial investment under the chart tab. Based on a one-year analysis of the Vanguard 500 Index Fund between January 26, 2017, and January 26, 2018, the VAMI chart indicates that an investor’s $10,000 investment would have grown to over $12,500.
Conclusion
- A value-added monthly index, or VAMI, illustrates the monthly returns that a $1,000 investment would have generated over time.
- One of the most commonly used indicators for showing investors the overall performance of a fund is VAMI.
- Net monthly returns compute VAMI, assuming a $1,000 initial investment at time zero.

