| FOF Code | Description |
| + FA593062045.A | Pension funds; municipal securities; asset |
| + FA703062005.A | Private depository institutions; municipal securities; asset |
| + FA523062005.A | Insurance companies; municipal securities; asset |
| + FA653062003.A | Mutual funds; municipal securities; asset (market value) |
| + FA663062005.A | Security brokers and dealers; municipal securities (net) ; asset |
| + FA633062000.A | Money market funds; municipal securities; asset |
| + FA553062003.A | Closed-end funds; municipal securities; asset |
| + FA563062003.A | Exchange-traded funds; municipal securities; asset |
| + FA403062005.A | Government-sponsored enterprises; municipal securities and Sallie Mae public academic facilities financing and Sallie Mae public warehousing advances; asset |
| + FA503062003.A | Other financial business; municipal securities held by COVID-19 Municipal Liquidity Facility (MLF); asset |