| BTC | BTC | 98.97 | Financial | Stocks | NYQ |
| ORC | Orchid Island Capital, Inc. | 8.44 | Real Estate | Stocks | NYQ |
| OBTC | OSPREY BITCOIN TR UNIT BEN INT | 11.72 | N/A | Stocks | PNK |
| PTC | PTC Inc. | 180.68 | Technology | Stocks | NMS |
| OC | Owens Corning Inc | 171.68 | Industrials | Stocks | NYQ |
| FOCPX | Fidelity OTC Pt | 20.34 | N/A | Mutual Fund | NAS |
| TTC | Toro Company (The) | 87.89 | Industrials | Stocks | NYQ |
| OMC | Omnicom Group Inc. | 95.89 | Communication Services | Stocks | NYQ |
| OTLC | ONCOTELIC THERAPEUTICS INC | 0.04 | Healthcare | Stocks | PNK |
| LTC | LTC Properties, Inc. | 32.49 | Real Estate | Stocks | NYQ |
| OCC | Optical Cable Corporation | 2.86 | Technology | Stocks | NGM |
| DTC | Solo Brands, Inc. | 1.95 | Consumer Cyclical | Stocks | NYQ |
| OEC | Orion S.A. | 24.00 | Basic Materials | Stocks | NYQ |
| STC | Stewart Information Services Co | 63.12 | Financial Services | Stocks | NYQ |
| MTC | MMTec, Inc. | 3.60 | Technology | Stocks | NCM |
| ODC | Oil-Dri Corporation Of America | 69.60 | Basic Materials | Stocks | NYQ |
| TC | TuanChe Limited | 1.63 | Communication Services | Stocks | NCM |
| RTC | Baijiayun Group Ltd - Class | 1.49 | Technology | Stocks | NGM |
| FOCKX | Fidelity OTC Portfolio Class K | 20.81 | N/A | Mutual Fund | NAS |
| FOKFX | Fidelity OTC K6 Portfolio | 22.41 | N/A | Mutual Fund | NAS |
| OTEC | OceanTech Acquisitions I Corp. | 11.75 | Financial Services | Stocks | NCM |
| OTP | OTP | N/A | N/A | ETF | PCX |
| OBTC | OSPREY BITCOIN TR UNIT BEN INT | 19.19 | N/A | ETF | PNK |
| OIC | OIC | 0.00 | Financial | Stocks | NYQ |
| OTCO.BO | OTCO INTERNATIONAL LTD. | 7.02 | Real Estate | Stocks | BSE |