# FNMA FNMA Connecticut Avenue Securities Trust, Series 2020-SBT1, Class 1B1

FNMA FNMA Connecticut Avenue Securities Trust, Series 2020-SBT1, Class 1B1 is a security (CUSIP 20753VBT4) tracked across SEC portfolio filings. 5 registered fund positions totaling $9.9M via N-PORT as of 2026-04-30.

## Summary

- Issuer: FNMA
- Class: FNMA Connecticut Avenue Securities Trust, Series 2020-SBT1, Class 1B1
- CUSIP: 20753VBT4
- Asset category: ABS-MBS
- 13F holders: 0
- N-PORT fund positions: 5
- N-PORT value: $9.9M
- N-PORT report: 2026-04-30

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Putnam Mortgage Securities Fund](https://search.stillhousedata.com/fund/S000006570) | Putnam Mortgage Securities Fund | $3.6M | 93.21% |
| John Hancock CQS Asset Backed Securities Fund | John Hancock CQS Asset Backed Securities Fund | $3.1M | 273.35% |
| [Putnam Diversified Income Trust](https://search.stillhousedata.com/fund/S000005529) | Putnam Diversified Income Trust | $1.7M | 18.65% |
| [NYLI MacKay Core Plus Bond ETF](https://search.stillhousedata.com/fund/S000071156) | New York Life Investments Active ETF Trust | $1.1M | 35.46% |
| Putnam Premier Income Trust | Putnam Premier Income Trust | $369K | 10.37% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/20753VBT4.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.