UMBS, TBA Uniform Mortgage-Backed Security, TBA is a security (CUSIP 01F042475) tracked across SEC portfolio filings. 2 registered fund positions totaling $45.6M via N-PORT as of 2026-05-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Lord Abbett Total Return Fund | LORD ABBETT INVESTMENT TRUST | $30.1M | 83.31% |
| Master Total Return Portfolio | Master Bond LLC | $15.6M | 8.26% |