| FOF Code | Description |
| + FU713061103.A | Monetary authority; total Treasury securities; asset |
| + FU403061105.A | Government-sponsored enterprises; Treasury securities; asset |
| + FU703061105.A | Private depository institutions; Treasury securities; asset |
| + FU583061105.A | Insurance companies and pension funds; Treasury securities; asset |
| + FU663061105.A | Security brokers and dealers; Treasury securities (net); asset |
| + FU633061105.A | Money market funds; Treasury securities; asset |
| + FU653061105.A | Mutual funds; Treasury securities; asset (market value) |
| + FU553061103.A | Closed-end funds; Treasury securities; asset |
| + FU563061103.A | Exchange-traded funds; Treasury securities; asset |
| + FU673061103.A | Issuers of asset-backed securities; Treasury securities; asset |
| + FU733061103.A | Holding companies; Treasury securities; asset |
| + FU503061123.A | Other financial business; Treasury securities held by central clearing counterparties; asset |