MMFの属性別残高推移（2005年）
残高ベース
| . | 法人（件） | 比率（％） | 個人（件） | 比率（％） | 合計（件） |
| Dec-05 | 1,331,561 | 44.1 | 1,688,664 | 55.9 | 3,020,225 |
| Nov-05 | 1,353,031 | 44.2 | 1,708,829 | 55.8 | 3,061,860 |
| Oct-05 | 1,353,947 | 43.9 | 1,728,900 | 56.1 | 3,082,847 |
| Sep-05 | 1,392,327 | 44.4 | 1,742,126 | 55.6 | 3,134,453 |
| Aug-05 | 1,410,847 | 44.4 | 1,764,784 | 55.6 | 3,175,631 |
| Jul-05 | 1,434,911 | 44.6 | 1,785,518 | 55.4 | 3,220,429 |
| Jun-05 | 1,487,147 | 45 | 1,815,787 | 55 | 3,302,934 |
| May-05 | 1,503,701 | 44.9 | 1,844,458 | 55.1 | 3,348,159 |
| Apr-05 | 1,511,438 | 44.7 | 1,873,099 | 55.3 | 3,384,537 |
| Mar-05 | 1,507,360 | 44 | 1,920,344 | 56 | 3,427,704 |
| Feb-05 | 1,552,097 | 44.2 | 1,956,811 | 55.8 | 3,508,908 |
| Jan-05 | 1,567,570 | 44.2 | 1,981,251 | 55.8 | 3,548,821 |
口座数ベース
| . | 法人（件） | 比率（％） | 個人（件） | 比率（％） | 合計（件） |
| Dec-05 | 21,067 | 1.1 | 1,869,994 | 98.9 | 1,891,061 |
| Nov-05 | 21,302 | 1.1 | 1,884,391 | 98.9 | 1,905,693 |
| Oct-05 | 21,450 | 1.1 | 1,898,090 | 98.9 | 1,919,540 |
| Sep-05 | 21,903 | 1.1 | 1,906,724 | 98.9 | 1,928,627 |
| Aug-05 | 22,054 | 1.1 | 1,920,264 | 98.9 | 1,942,318 |
| July-05 | 22,226 | 1.1 | 1,934,719 | 98.9 | 1,956,945 |
| June-05 | 22,444 | 1.1 | 1,945,483 | 98.9 | 1,967,927 |
| Apr-05 | 22,626 | 1.1 | 1,958,767 | 98.9 | 1,981,393 |
| Mar-05 | 22,754 | 1.1 | 1,971,412 | 98.9 | 1,994,166 |
| Feb-05 | 22,906 | 1.1 | 1,981,535 | 98.9 | 2,004,441 |
| Jan-05 | 23,190 | 1.1 | 1,998,037 | 98.9 | 2,021,227 |
（データ出所：社団法人投資信託協会「投資信託」）
