| Questfire Energy Corp (Q.B) CVE - Toronto TSX Ventures Exchange | |
| Questor Technology Inc (QST) CVE - Toronto TSX Ventures Exchange | |
| Questos AG (QUT2) ETR - Deutsche Börse XETRA | |
| Questos AG (QUT2) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| Questus Limited (QSS) ASX - Australian Securities Exchange | |
| Quickflix Ltd. (QFX) ASX - Australian Securities Exchange | |
| Quickfood SA (PATY) BCBA - Buenos Aires Stock Exchange | |
| Quickstep Holdings Limited (QHL) ASX - Australian Securities Exchange | |
| QHD TIANYE TOLIAN HEAVY IND. CO., LTD. (2459) SHE - Shenzhen Stock Exchange | |
| QUEST OIL CORP. DL-,01 (QB4) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| QUINTILES TRANSN.H.DL-,01 (QTS) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| QUIZAM MEDIA CORPORATION (QQ) CVE - Toronto TSX Ventures Exchange | |
| QUMU CORP. DL-,01 (RMG) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| QUNAR CAYM.ISL.SP.ADR B3 (QU8) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| QUNXING PAPER HLDGS CO. (33Q) FRA - Deutsche Börse Frankfurt Stock Exchange | |