| RYTM | Rhythm Pharmaceuticals, Inc. | Healthcare | $6.7B | — | 0 |
| RIBBR | Ribbon Acquisition Corp. | Financial Services | $1.0M | — | 0 |
| RBBN | Ribbon Communications Inc. | Technology | $325M | — | 0 |
| KRSP-UN | Rice Acquisition Corporation | — | — | — | 0 |
| ANPA | Rich Sparkle Holdings Limited | Industrials | $31.3M | — | 0 |
| RELL | Richardson Electronics, Ltd. | Technology | $251M | — | 0 |
| RMBI | Richmond Mutual Bancorporation, Inc. | Financial Services | $244M | — | 0 |
| RR | Richtech Robotics Inc. Class B Common Stock | Industrials | $301M | — | 0 |
| RDNW | RideNow Group, Inc. | Consumer Cyclical | $305M | — | 0 |
| RDGA | Ridgefield Acquisition Corp. | Financial Services | $27.9M | — | 0 |
| RDGMF | Ridgeline Minerals Corp. | Basic Materials | $24.8M | — | 0 |
| RPC | Ridgepost Capital, Inc. | Financial Services | $579M | — | 0 |
| RDGT | Ridgetech, Inc. | Healthcare | $0.8M | — | 0 |
| RGAKF | Rigaku Holdings Corporation/ADR | — | — | — | 0 |
| RIGL | Rigel Pharmaceuticals, Inc. | Healthcare | $886M | — | 0 |
| RGTIW | Rigetti Computing, Inc. | Technology | $5.5B | — | 0 |
| RTON | Right On Brands, Inc. | Consumer Defensive | $1.0M | — | 0 |
| RTMVF | Rightmove plc | Communication Services | $4.5B | — | 0 |
| REPX | Riley Exploration Permian, Inc. | Energy | $905M | — | 0 |
| RMNI | Rimini Street, Inc. | Technology | $400M | — | 0 |
| REI | Ring Energy, Inc. | Energy | $352M | — | 0 |
| RNG | RingCentral, Inc. | Technology | $6.9B | — | 0 |
| RYOOF | Rio Silver Inc. | Basic Materials | $14.7M | — | 0 |
| RTPPF | Rio Tinto Group | Basic Materials | $157B | — | 0 |
| RTNTF | Rio Tinto Group | Basic Materials | $186B | — | 0 |