Southwestern Illinois Development Authority Southwestern Illinois Development Authority, Series B is a security (CUSIP 84552YTM3) tracked across SEC portfolio filings. 2 registered fund positions totaling $3.7M via N-PORT as of 2026-05-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| NYLI MacKay DefinedTerm Muni Opportunities Fund | NYLI MacKay DefinedTerm Muni Opportunities Fund | $3.2M | 102.69% |
| NYLI MacKay Muni Income Opportunities Fund | NYLI MacKay Muni Income Opportunities Fund | $539K | 52.83% |