Mutual Fund AUM Tracker

What Is It / Concept Explanation

As of Q4 2023, the Tianhong Yu'e Bao Money Market Fund had an AUM of approximately 688.9 billion RMB—this number represents the fund's "net asset value size," which is the market value of the fund's total assets minus its liabilities. Changes in fund size directly reflect the combined results of capital inflows/outflows and net asset value (NAV) fluctuations. In our Mutual Fund AUM Tracker, you simply enter the fund ticker to get the historical size data of the fund over any time period, presented in charts and tables.

Principles & Formulas

Fund Size = Total Fund Shares × NAV per Share
The total shares represent the number of fund units held by investors, and the NAV per share is the value of each unit. Size growth can come from new subscriptions (increase in shares) or NAV appreciation; size decline can result from redemptions or NAV depreciation. The underlying logic of our tracking tool is: we fetch the total shares and NAV per share for each reporting period (usually daily/weekly/monthly/quarterly) from authoritative data sources (e.g., fund company quarterly reports, exchange announcements), and then apply the above formula to calculate the historical size series.

How to Use This Tool

1. Enter the fund ticker (e.g., 000198) or name keywords in the search box and click "Search";
2. Select a time range: default options include the last 3 months, 1 year, 3 years, or custom start and end dates;
3. Click "View Size Changes", and a line chart and data table will appear on the right;
4. The chart's X-axis is the date, and the Y-axis is the size (in 100 million RMB); the table lists the specific size value for each reporting period and the YoY/MoM percentage changes;
5. To compare multiple funds, click "Add Comparison Fund" and repeat the steps above.

Complete Example / Practical Steps

Let's take the "E Fund Consumer Industry Equity Fund (110022)" as an example. After opening the tool:
• Enter 110022 in the search box and click search;
• Select the "Last 3 Years" range (2021-01-01 to 2023-12-31);
• Click "View Size Changes", and the chart immediately shows:
- At the beginning of 2021, the size was about 29 billion RMB, peaking at about 34.2 billion RMB in mid-2021;
- After that, the size gradually declined, dropping to about 18 billion RMB by the end of 2023.
The table data further shows: 2021 Q1 size was 29.03 billion, 2021 Q2 was 34.17 billion, 2022 Q1 was 26.65 billion, and 2023 Q4 was 18.02 billion. Interpretation: The fund's size first rose and then fell, mainly affected by the volatility of the consumer sector and investor redemptions. The size peaked at the sector's high point and subsequently shrank due to NAV declines and share reductions.

More Examples / Multi-Scenario Comparisons

Control Example: Bond Fund vs. Equity Fund. We simultaneously search for "China Merchants Industry Bond A (217022)" and "Zhong Ou Healthcare Mixed A (003095)", both selecting the last 2 years (2022-2024).
• The China Merchants Industry Bond size grew slowly from 4.5 billion RMB in early 2022 to 5.2 billion RMB in early 2024, with a stable trend, indicating that pure bond fund sizes are less affected by market volatility and have continuous steady capital inflows;
• The Zhong Ou Healthcare size surged from 8.2 billion RMB in early 2022 to 12.6 billion RMB in mid-2023 (healthcare rebound rally), and then fell back to 8.7 billion RMB, showing severe volatility. Comparison shows: active equity fund sizes follow fundamental expectations and sentiment changes, while bond fund sizes rely more on return stability.

How to Interpret Results / Meaning of Values

Common Pitfalls & Misuses

• Only looking at absolute size, ignoring share changes: Size = Shares × NAV. Size growth caused by NAV appreciation does not necessarily mean capital inflows; the tool provides a shares column, please pay attention to both.
• Using the "size" of non-money market funds to replace "net asset size": Some funds have different share classes (e.g., Class A/C). The tool defaults to showing the aggregated size of the primary share class (usually Class A); confirm whether it includes all share classes.
• Ignoring sudden size changes in interval funds: Interval funds may experience severe size fluctuations during open periods and cannot be simply predicted using linear trends.
• Mistaking the data on the last day of the quarter for "daily size": Fund sizes are usually published in monthly/quarterly reports. There may be "window dressing" at the end of the quarter, and daily fluctuations may be larger.

Frequently Asked Questions (FAQ)

Q1: Is a larger fund size always better?

Not necessarily. An oversized fund may affect the fund manager's operational flexibility (especially for small and mid-cap equity funds), while an undersized fund carries liquidation risks (generally < 50 million RMB). It needs to be judged comprehensively based on fund type, liquidity, and historical performance.

Q2: Why can't I find the size data for a certain fund in the tool?

It may be because the fund was established very recently (less than 1 month), has been liquidated, or our data source hasn't included it yet. Please check if the fund ticker is correct, or select a broader time range and try again. If there is still no data, please contact us, and we will add it as soon as possible.

Q3: Why are there differences in the same fund's size shown on different data platforms?

Differences mainly stem from: statistical methods (whether ETF feeder funds are included, whether multiple share classes are merged) and data update times (data usually lags 1-2 months after quarterly reports are published). Our tool's data comes from official fund company quarterly reports and public exchange information, striving to remain consistent with AMAC filings.

Q4: How can I tell if a size change is caused by share changes or NAV changes?

In our data table, besides the size column, we also provide "Total Shares (100M)" and "NAV per Share" columns. Use "Current Total Shares / Previous Total Shares - 1" to calculate the share change rate, and "Current NAV / Previous NAV - 1" to calculate the NAV change rate. Multiplying the two can approximate the size change rate (ignoring cross terms).

Q5: Can fund size changes be used as a basis for buying and selling decisions?

Size changes are an important reference indicator but cannot be used as a sole decision-making basis. It is recommended to combine factors such as fund manager changes, historical returns, portfolio concentration, and market environment. This tool only provides data queries and does not constitute investment advice.

Limitations & Disclaimers

• This tool only displays historical size data and does not predict future trends.
• The data update frequency is monthly (quarterly report periods may lag by 2 months), and real-time intraday sizes cannot be provided.
• For non-Class A shares (e.g., Class C, Class E), the tool defaults to not displaying them separately. If you need to query them, please use the primary share ticker (usually Class A).
• If events such as fund splits or mergers occur, size data may jump around the event date. Please note the "ex-dividend date" marked in the tool.
• Disclaimer: The results of this tool are for learning and reference only and do not constitute any investment, tax, or legal advice. For actual decisions, please combine professional opinions and official data sources (e.g., Eastmoney, AMAC official website).

Now you can enter any mutual fund ticker in the calculator above to try tracking its historical size changes. We recommend using the "Compare" feature simultaneously to horizontally observe the differences in size changes among similar funds.