Mutual fund firms typically choose their enterprise efficiency by the expansion of their property underneath administration (AUM) and their fund flows. However these metrics supply little perception into how a agency is faring relative to its competitors.
Quite market share and alter in market share are more practical gauges of mutual fund firms’ enterprise efficiency. That’s the premise I lay out in “A New Framework for Analyzing Market Share Dynamics among Fund Families” for the Financial Analysts Journal. Within the article, I additionally current a technique that explains modifications in market share over time and helps determine the strengths and weaknesses of mutual fund companies.
The 4 Elements of Enterprise Efficiency
The framework output distills the drivers of the market share change and signifies whether or not a fund firm outperformed and outsold funds in the identical classes. It additionally determines whether or not the corporate benefited from its fund vary having publicity to classes that skilled favorable efficiency or fund flows.
As a result of fund market share is calculated on the premise of AUM, modifications in market share in a given interval are pushed not solely by buyers shopping for and promoting mutual fund models, but additionally by the funding efficiency of the prevailing property for the reason that interval started. A fund positive aspects market share when the sum of its returns and relative flows — web flows as a proportion of the fund AUM at first of the interval — is larger than that of the market’s.
The analysis decomposes modifications in market share into 4
parts of enterprise efficiency:
- The Class Efficiency Part is pushed by the funding efficiency of fund classes that the fund firm is energetic in, relative to the market common.
- The Extra Efficiency Part measures how the corporate’s funds fared relative to competing funds in the identical class.
- The Class Flows Part relies upon on the web flows of the fund classes during which the fund agency is energetic, relative to the market common.
- The Extra Flows Part measures by how a lot a fund firm outsells its class friends — or achieves larger relative flows than the class common.
The 4 Elements of Market Share Change
Class vs. Market | Fund vs. Class | |
Efficiency | 1. Class Efficiency Part Is the corporate effectively represented in classes with favorable efficiency? | 2. Extra Efficiency Part Does the corporate outperform class friends? |
Flows | 3. Class Flows Part Is the corporate effectively represented in classes with favorable web flows? | 4. Extra Flows Part Does the corporate outsell class friends? |
Market Evaluation Outcomes
So what parts have pushed probably the most market share change in mutual fund firms and what does the framework reveal about market dynamics?
To reply that query, I analyzed US mutual fund knowledge from 2001 to 2018. The pattern consisted of 15,242 funds belonging to 1,428 fund firms.
The principle findings had been as follows:
- Excluding mergers and acquisitions, roughly 42% of market share modified arms amongst fund firms in the course of the 18-year interval. In a median month, 0.6% of market share was redistributed.
- Particular person firms rating very in another way on every of the 4 parts relying on their enterprise efficiency. The Extra Flows Part had the most important affect.
- All 4 parts are persistent. Particularly, when an organization loses market share in complete or on one of many parts in a given interval, the chances of a damaging end result within the subsequent interval are excessive.
- The longer the time interval over which market change was analyzed, the extra the 2 flow-driven parts dominated the performance-driven parts. Why? As a result of flows are extra persistent than efficiency. However that doesn’t imply fund firms can ignore efficiency and focus solely on advertising and marketing and gross sales. Previous fund efficiency and previous class efficiency are each vital drivers of change in market share.
Improvement of AUM and the Variety of Mutual Fund Firms

Purposes
With this framework, mutual fund firms can attribute modifications of their market share to the 4 parts of enterprise efficiency. By figuring out what’s driving their enterprise, executives can use that information to information their strategic choice making.
Because the knowledge is public and no proprietary enter is required to conduct the evaluation, regulatory authorities, consultancies, sell-side and buy-side analysis companies, educational establishments, and different exterior stakeholders can apply the framework to evaluate the relative strengths of funding companies and examine market dynamics.
To find out how a fund firm is performing relative to its friends, market share change is the indicator to look at. Throughout down markets or amid intervals of heightened volatility, modifications in market share are usually bigger.
Consequently, whereas my evaluation didn’t lengthen into 2020, there’s purpose to consider that the hole between market share winners and losers will likely be better this 12 months than the common.
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All posts are the opinion of the writer. As such, they shouldn’t be construed as funding recommendation, nor do the opinions expressed essentially replicate the views of CFA Institute or the writer’s employer.
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