Chicago O'Hare International Airport CHICAGO-D-REF-REV is a security (CUSIP 1675932Q4) tracked across SEC portfolio filings. 1 registered fund positions totaling $2.8M via N-PORT as of 2026-04-30.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD LIMITED-TERM TAX-EXEMPT FUND | VANGUARD MUNICIPAL BOND FUNDS | $2.8M | 0.80% |