Upstart Securitization Trust Upstart Securitization Trust 2023-1 is a security (CUSIP 91679AAC0) tracked across SEC portfolio filings. 3 registered fund positions totaling $1.6M via N-PORT as of 2026-05-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Thornburg Income Builder Opportunities Trust | Thornburg Income Builder Opportunities Trust | $841K | 11.57% |
| 1WS Credit Income Fund | 1WS CREDIT INCOME FUND | $435K | 5.09% |
| Thornburg Multi Sector Bond ETF | Thornburg ETF Trust | $351K | 19.00% |