| OMH | Ohmyhome Limited | 4.36 | Real Estate | Stocks | NCM |
| OSK | Oshkosh Corporation (Holding Co | 81.80 | Industrials | Stocks | NYQ |
| OIH | VanEck Oil Services ETF | 272.45 | N/A | ETF | PCX |
| SH | ProShares Short S&P500 | 14.52 | N/A | ETF | PCX |
| OSS | One Stop Systems, Inc. | 2.95 | Technology | Stocks | NCM |
| VSH | Vishay Intertechnology, Inc. | 26.56 | Technology | Stocks | NYQ |
| ASH | Ashland Inc. | 89.38 | Basic Materials | Stocks | NYQ |
| OSG | Overseas Shipholding Group, Inc | 3.93 | Energy | Stocks | NYQ |
| OST | Ostin Technology Group Co., Ltd | 1.06 | Technology | Stocks | NCM |
| OSW | OneSpaWorld Holdings Limited | 11.10 | Consumer Cyclical | Stocks | NCM |
| YOSH | Yoshiharu Global Co. | 0.74 | Consumer Cyclical | Stocks | NCM |
| OGIG | ALPS O'Shares Global Internet G | 31.30 | N/A | ETF | BTS |
| OSA | ProSomnus, Inc. | 4.73 | Healthcare | Stocks | NGM |
| OUSA | ALPS O'Shares U.S. Quality Divi | 42.55 | N/A | ETF | BTS |
| PSH | Pershing Square Holdings Ord | 34.90 | N/A | Mutual fund | PNK |
| CSH | Listed Funds Trust | 24.99 | N/A | Stocks | ASE |
| OUSM | ALPS O'Shares U.S. Small-Cap Qu | 35.19 | N/A | ETF | BTS |
| OEUR | ALPS OShares Europe Quality Div | 27.64 | N/A | ETF | BTS |
| OSI | Osiris Acquisition Corp. | 9.98 | Financial Services | Stocks | NYQ |
| CSH | Listed Funds Trust Morgan Creek | 25.62 | N/A | ETF | PCX |
| 0P0000A0FQ.TO | RBC O'Shaughnessy All-Canadian | 14.60 | N/A | Mutual fund | TOR |
| 0622.HK | OSHIDORI | 0.24 | Financial Services | Stocks | HKG |
| OFVIX | O'Shaughnessy Market Leaders Va | 16.05 | N/A | Mutual fund | NAS |
| 0P0000IRH0.TO | RBC O'Shaughnessy All Cdn Equit | 20.34 | N/A | Mutual fund | TOR |
| OSH | Oak Street Health, Inc. | 39.00 | Healthcare | Stocks | NYQ |