| FOF Code | Description |
| + FU593062045.A | Pension funds; municipal securities; asset |
| + FU703062005.A | Private depository institutions; municipal securities; asset |
| + FU523062005.A | Insurance companies; municipal securities; asset |
| + FU653062003.A | Mutual funds; municipal securities; asset (market value) |
| + FU663062005.A | Security brokers and dealers; municipal securities (net) ; asset |
| + FU633062000.A | Money market funds; municipal securities; asset |
| + FU553062003.A | Closed-end funds; municipal securities; asset |
| + FU563062003.A | Exchange-traded funds; municipal securities; asset |
| + FU403062005.A | Government-sponsored enterprises; municipal securities and Sallie Mae public academic facilities financing and Sallie Mae public warehousing advances; asset |
| + FU503062003.A | Other financial business; municipal securities held by COVID-19 Municipal Liquidity Facility (MLF); asset |