Quest Diagnostics Inc QUEST DIAGNOSTIC is a security (CUSIP 74834LAY6) tracked across SEC portfolio filings. 1 registered fund positions totaling $178K via N-PORT as of 2026-03-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD BALANCED INDEX FUND | VANGUARD VALLEY FORGE FUNDS | $178K | 0.03% |