| Quantum Genomics SA (ALQGC) EPA - Paris NYSE Euronext | |
| Quantum Hi-Tech (China) Biologicl Co Ltd (300149) SHE - Shenzhen Stock Exchange | |
| Quantum Property Group Ltd (QPG) JSE - Johannesburg Stock Exchange | |
| Quantum Resources Limited (QUR) ASX - Australian Securities Exchange | |
| Quantum Software SA (QNT) WSE - Warsaw Stock Exchange | |
| Quartet Resources Ltd (QRL.P) CVE - Toronto TSX Ventures Exchange | |
| Quest PharmaTech Inc (QPT) CVE - Toronto TSX Ventures Exchange | |
| Quest Rare Minerals Ltd (QRM) TSE - Toronto Stock Exchange | |
| Quest Rare Minerals Ltd (QRM) CVE - Toronto TSX Ventures Exchange | |
| Quinto Resources Inc (QIT) CVE - Toronto TSX Ventures Exchange | |
| Quintos AG (QNSK) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| Quintos AG (QNSK) ETR - Deutsche Börse XETRA | |
| Quizzr NV (4QZ) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| Qumak SA (QMK) WSE - Warsaw Stock Exchange | |
| Quorum Information Technologies Inc (QIS) CVE - Toronto TSX Ventures Exchange | |