# Upgrade Master Pass-Thru Trust Upgrade Master Pass-Thru Trust Series 2026-ST1

Upgrade Master Pass-Thru Trust Upgrade Master Pass-Thru Trust Series 2026-ST1 is a security (CUSIP 91533VAA4) tracked across SEC portfolio filings. 12 registered fund positions totaling $20.2M via N-PORT as of 2026-05-31.

## Summary

- Issuer: Upgrade Master Pass-Thru Trust
- Class: Upgrade Master Pass-Thru Trust Series 2026-ST1
- CUSIP: 91533VAA4
- Asset category: ABS-O
- 13F holders: 0
- N-PORT fund positions: 12
- N-PORT value: $20.2M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [AB Core Bond Portfolio](https://search.stillhousedata.com/fund/S000011057) | BERNSTEIN SANFORD C FUND INC | $6.5M | 14.50% |
| [Bond Fund of America](https://search.stillhousedata.com/fund/S000009231) | Bond Fund of America | $3.8M | 0.38% |
| [Short-Term Bond Fund of America](https://search.stillhousedata.com/fund/S000013585) | Short-Term Bond Fund of America | $3.2M | 2.51% |
| [American Balanced Fund](https://search.stillhousedata.com/fund/S000008801) | American Balanced Fund | $2.8M | 0.11% |
| [Intermediate Bond Fund of America](https://search.stillhousedata.com/fund/S000009236) | Intermediate Bond Fund of America | $2.4M | 0.84% |
| [Income Fund of America](https://search.stillhousedata.com/fund/S000008814) | Income Fund of America | $319K | 0.02% |
| [Capital Income Builder](https://search.stillhousedata.com/fund/S000009000) | Capital Income Builder | $319K | 0.03% |
| [BlackRock Strategic Global Bond Fund, Inc.](https://search.stillhousedata.com/fund/S000002866) | BlackRock Strategic Global Bond Fund, Inc. | $302K | 3.45% |
| [American Funds Strategic Bond Fund](https://search.stillhousedata.com/fund/S000052313) | American Funds Strategic Bond Fund | $179K | 0.08% |
| [AB Short Duration Income ETF](https://search.stillhousedata.com/fund/S000083865) | AB Active ETFs, Inc. | $147K | 8.47% |
| [Capital Group Core Plus Completion Fund](https://search.stillhousedata.com/fund/S000095202) | Capital Group Completion Fund Series | $94K | 27.57% |
| [American Funds Core Plus Bond Fund](https://search.stillhousedata.com/fund/S000093531) | American Funds Core Plus Bond Fund | $81K | 13.07% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/91533VAA4.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.