UMBS, TBA Uniform Mortgage-Backed Security, TBA is a security (CUSIP 01F0526B3) tracked across SEC portfolio filings. 2 registered fund positions totaling $87.3M via N-PORT as of 2025-10-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| Morgan Stanley Income Opportunities Fund | Morgan Stanley Income Opportunities Fund | $67.9M | 1991.96% |
| BlackRock Securitized Income Fund | Managed Account Series II | $19.4M | 427.54% |