| FOF Code | Description |
| + FL713061103.A | Monetary authority; total Treasury securities; asset |
| + FL403061105.A | Government-sponsored enterprises; Treasury securities; asset |
| + FL703061105.A | Private depository institutions; Treasury securities; asset |
| + FL583061105.A | Insurance companies and pension funds; Treasury securities; asset |
| + FL663061105.A | Security brokers and dealers; Treasury securities (net); asset |
| + FL633061105.A | Money market funds; Treasury securities; asset |
| + FL653061105.A | Mutual funds; Treasury securities; asset (market value) |
| + FL553061103.A | Closed-end funds; Treasury securities; asset |
| + FL563061103.A | Exchange-traded funds; Treasury securities; asset |
| + FL673061103.A | Issuers of asset-backed securities; Treasury securities; asset |
| + FL733061103.A | Holding companies; Treasury securities; asset |
| + FL503061123.A | Other financial business; Treasury securities held by central clearing counterparties; asset |