# UMBS, TBA Uniform Mortgage-Backed Security, TBA

UMBS, TBA Uniform Mortgage-Backed Security, TBA is a security (CUSIP 01F070658) tracked across SEC portfolio filings. 4 registered fund positions totaling $85.5M via N-PORT as of 2026-03-31.

## Summary

- Issuer: UMBS, TBA
- Class: Uniform Mortgage-Backed Security, TBA
- CUSIP: 01F070658
- Asset category: ABS-MBS
- 13F holders: 0
- N-PORT fund positions: 4
- N-PORT value: $85.5M
- N-PORT report: 2026-03-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [LORD ABBETT BOND DEBENTURE FUND INC](https://search.stillhousedata.com/fund/S000006820) | LORD ABBETT BOND DEBENTURE FUND INC | $104.6M | 45.72% |
| PIMCO Strategic Income Fund, Inc. | PIMCO Strategic Income Fund, Inc. | $8.1M | 380.47% |
| [PIMCO Active Bond Exchange-Traded Fund](https://search.stillhousedata.com/fund/S000033233) | PIMCO ETF Trust | $-10.4M | -13.46% |
| [Pioneer Bond Fund](https://search.stillhousedata.com/fund/S000003927) | Pioneer Bond Fund /DE/ | $-16.7M | -33.74% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/01F070658.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.