MMFの属性別残高推移（2004年）
残高ベース
| . | 法人（件） | 比率（％） | 個人（件） | 比率（％） | 合計（件） |
| Dec-04 | 1,577,925 | 43.8 | 2,028,274 | 56.2 | 3,606,199 |
| Nov-04 | 1,615,252 | 43.9 | 2,061,445 | 56.1 | 3,676,697 |
| Oct-04 | 1,619,708 | 43.5 | 2,103,009 | 56.5 | 3,722,717 |
| Sep-04 | 1,637,906 | 43.2 | 2,155,508 | 56.8 | 3,793,414 |
| Aug-04 | 1,719,351 | 43.8 | 2,201,732 | 56.2 | 3,921,083 |
| July-04 | 1,733,273 | 43.6 | 2,238,770 | 56.4 | 3,972,043 |
| June-04 | 1,757,344 | 43.5 | 2,281,638 | 56.5 | 4,038,982 |
| May-04 | 1,837,225 | 44.4 | 2,303,565 | 55.6 | 4,140,790 |
| Apr-04 | 1,913,482 | 45.7 | 2,270,642 | 54.3 | 4,184,124 |
| Mar-04 | 1,802,944 | 43.1 | 2,384,711 | 56.9 | 4,187,655 |
| Feb-04 | 1,842,390 | 43.3 | 2,417,427 | 56.7 | 4,259,817 |
| Jan-04 | 1,839,000 | 42.8 | 2,455,919 | 57.2 | 4,294,919 |
口座数ベース
| . | 法人（件） | 比率（％） | 個人（件） | 比率（％） | 合計（件） |
| Dec-04 | 23,432 | 1.2 | 2,009,486 | 98.8 | 2,032,918 |
| Nov-04 | 23,664 | 1.2 | 2,018,898 | 98.8 | 2,042,562 |
| Oct-04 | 24,621 | 1.2 | 2,031,615 | 98.8 | 2,056,236 |
| Sep-04 | 24,173 | 1.2 | 2,056,408 | 98.8 | 2,080,581 |
| Aug-04 | 24,341 | 1.2 | 2,068,837 | 98.8 | 2,093,178 |
| July-04 | 24,567 | 1.2 | 2,080,764 | 98.8 | 2,105,331 |
| June-04 | 24,849 | 1.2 | 2,090,110 | 98.8 | 2,114,959 |
| May-04 | 24,785 | 1.2 | 2,097,323 | 98.8 | 2,122,108 |
| Apr-04 | 34,181 | 1.6 | 2,093,260 | 98.4 | 2,127,441 |
| Mar-04 | 24,876 | 1.2 | 2,113,127 | 98.8 | 2,138,003 |
| Feb-04 | 25,175 | 1.2 | 2,128,858 | 98.8 | 2,154,033 |
| Jan-04 | 25,301 | 1.2 | 2,142,710 | 98.8 | 2,168,011 |
（データ出所：社団法人投資信託協会「投資信託」）
