| OROCOBRE LTD (3O1) ETR - Deutsche Börse XETRA | |
| ORSERO S.P.A. (WRG) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| ORSU METALS CORP. NEW (E4MN) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| OSISKO METALS INC. O.N. (0B51) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| OSPREY GOLD DEV. LTD (1OG) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| OSS.G.M.-A.R.-C.U.ETF1CEO (OSXM) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| OSS.S.B.EU.S.V.T U.ETF1CE (EUPE) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| OSSIAM ISX EMVHD UETF1DEO (OSXN) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| OVERS. SHIPHLDG GR. A (19O) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| OVID THERAPEUTICS DL-,001 (1OT) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| OYSTER OIL AND GAS LTD (13L) FRA - Deutsche Börse Frankfurt Stock Exchange | |
| Optiemus Infracom Ltd (OPTIEMUS) NSE - National Stock Exchange of India | |
| Orsero SpA (ORS) BIT - Borsa Italiana Milan Stock Exchange | |
| Oro Co Ltd (3983) TYO - Tokyo Stock Exchange | |
| Osaka Yuka Industry Ltd (4124) TYO - Tokyo Stock Exchange | |