Fund AUM Growth Rate Calculator: Annualized Asset Growth
Work out how fast a fund's assets under management have grown — the headline scale metric for asset managers, and the figure that drives both revenue (fee × AUM) and competitive positioning.
Adjust the inputs and select Calculate for a full breakdown.
Compare Common Scenarios
How the numbers shift across typical situations for this calculator:
| Scenario | Annual AUM growth rate | Total AUM growth |
|---|---|---|
| $1B to $2.5B over 5yr | 20.11% | 150.00% |
| $50M to $200M over 3yr | 58.74% | 300.00% |
| $10B to $14B over 4yr | 8.78% | 40.00% |
| $500M to $350M over 2yr | -16.33% | -30.00% |
How This Calculator Works
Enter AUM at the start and end of the period, with the years between them. The calculator finds the compound annual growth rate, the steady yearly pace that connects the two snapshots.
The Formula
Compound Annual Growth Rate
Start is the beginning value, End is the ending value, n is the number of years
Worked Example
A fund growing from $1B to $2.5B over 5 years posts a 20.1% annual AUM growth rate. Total growth is 150%, but the annual figure is what compares against industry benchmarks and against the underlying market return. Growth above market suggests strong net new flows; growth below market implies redemptions.
Key Insight
AUM growth has two engines: market appreciation (the underlying portfolio rising) and net flows (new money in minus redemptions). Decomposing the two reveals whether the firm is actually winning customers or just riding the market. A flat market with rising AUM is a strong sign; a rising market masking flat AUM is a warning.
Frequently Asked Questions
What is AUM?
Assets under management — the total market value of the assets a fund or asset manager oversees. Management fees are typically charged as a percentage of AUM, making AUM growth the most direct driver of revenue.
What drives AUM growth?
Two factors: market appreciation of the existing portfolio and net new flows (new client deposits minus redemptions). Decomposing the two shows whether the firm is winning customers or coasting on market returns.
Why use the annualized rate?
Total growth depends on the window. Annualizing it lets you compare across periods, against market benchmarks, and against industry peers on equal footing.
What is a healthy AUM growth rate?
Top-quartile active managers in growing categories can post 15%+ annualized AUM growth; passive index funds often grow 10% to 25% during bull markets. Below market return for a sustained period signals net outflows.
How is this different from fund returns?
Fund returns measure portfolio performance — what existing money earned. AUM growth measures the size of the pool, which includes flows from new investors. A great fund with no marketing can post strong returns but flat AUM.
Related Calculators
Data Sources & Benchmarks
This calculator draws on 1 independent, dated source.
Methodology & Review
The growth rate is the compound annual rate between AUM at the start and end of the period. It is a net figure — net new flows plus market appreciation minus redemptions. It does not separate flows from market returns; AUM growth above market return implies positive net flows.
Written by Ugo Candido · Last updated May 17, 2026.