| OMH | Ohmyhome Limited | 4.45 | Real Estate | Stocks | NCM |
| OSK | Oshkosh Corporation (Holding Co | 73.83 | Industrials | Stocks | NYQ |
| OIH | VanEck Oil Services ETF | 246.72 | N/A | ETF | PCX |
| SH | ProShares Short S&P500 | 14.86 | N/A | ETF | PCX |
| VSH | Vishay Intertechnology, Inc. | 25.78 | Technology | Stocks | NYQ |
| OSS | One Stop Systems, Inc. | 2.51 | Technology | Stocks | NCM |
| ASH | Ashland Inc. | 84.88 | Basic Materials | Stocks | NYQ |
| OSG | Overseas Shipholding Group, Inc | 3.64 | Energy | Stocks | NYQ |
| YOSH | Yoshiharu Global Co. | 0.61 | Consumer Cyclical | Stocks | NCM |
| OSW | OneSpaWorld Holdings Limited | 10.43 | Consumer Cyclical | Stocks | NCM |
| OGIG | ALPS O'Shares Global Internet G | 30.57 | N/A | ETF | BTS |
| OUSA | ALPS O'Shares U.S. Quality Divi | 41.71 | N/A | ETF | BTS |
| OST | Ostin Technology Group Co., Ltd | 1.01 | Technology | Stocks | NCM |
| OSA | ProSomnus, Inc. | 4.83 | Healthcare | Stocks | NGM |
| PSH | Pershing Square Holdings Ord | 34.15 | N/A | Mutual fund | PNK |
| CSH | Listed Funds Trust | 24.99 | N/A | Stocks | ASE |
| OEUR | ALPS OShares Europe Quality Div | 27.19 | N/A | ETF | BTS |
| OUSM | ALPS O'Shares U.S. Small-Cap Qu | 34.02 | N/A | ETF | BTS |
| OSI | Osiris Acquisition Corp. | 9.97 | Financial Services | Stocks | NYQ |
| CSH | Listed Funds Trust Morgan Creek | 25.62 | N/A | ETF | PCX |
| 0622.HK | OSHIDORI | 0.24 | Financial Services | Stocks | HKG |
| 0P0000A0FT.TO | RBC O'Shaughnessy International | 10.20 | N/A | Mutual fund | TOR |
| 0P0000IRH0.TO | RBC O'Shaughnessy All Cdn Equit | 20.42 | N/A | Mutual fund | TOR |
| OSLH | OSLH | 0.00 | N/A | Stocks | PNK |
| OK3.DU | OSHKOSH CORP. DL -,01 | 68.50 | Industrials | Stocks | DUS |