| PNN.L | PENNON GROUP PLC ORD 61 1/20P | 768.50 | Utilities | Stocks | LSE |
| NNN.L | NANOSYNTH GROUP PLC ORD 0.01P | 0.09 | Technology | Stocks | LSE |
| SN.L | SMITH & NEPHEW PLC ORD USD0.20 | 1,209.50 | Healthcare | Stocks | LSE |
| SNR.L | SENIOR PLC ORD 10P | 171.80 | Industrials | Stocks | LSE |
| SND.L | SONDREL (HOLDINGS) PLC ORD GBP0 | 47.75 | Technology | Stocks | LSE |
| SNG.L | SYNAIRGEN PLC ORD 1P | 8.70 | Healthcare | Stocks | LSE |
| SYN.L | SYNERGIA ENERGY LTD ORD NPV | 0.12 | Energy | Stocks | LSE |
| SNX.L | SYNECTICS PLC ORD 20P | 107.50 | Industrials | Stocks | LSE |
| CNN.L | CALEDONIAN TRUST PLC ORD 20P | 160.00 | Real Estate | Stocks | LSE |
| SNT.L | SABIEN TECHNOLOGY GROUP PLC ORD | 13.38 | Industrials | Stocks | LSE |
| SUN.L | SURGICAL INNOVATIONS GROUP PLC | 2.20 | Healthcare | Stocks | LSE |
| BNN.L | BNN.L | 42.00 | N/A | Stocks | LSE |
| SEN.L | SEN.L | 2.50 | N/A | Stocks | LSE |
| SGN.L | SOLGENICS LIMITED ORD NPV (DI) | 0.20 | Utilities | Stocks | LSE |
| SNN.V | SNN.V | N/A | N/A | Index | VAN |
| SYNN.L | SYNN.L | 85.00 | N/A | Stocks | LSE |
| SQN.L | SQN.L | 25.50 | N/A | Stocks | LSE |
| SCN.L | SCN.L | 112.50 | N/A | Stocks | LSE |
| SNP.L | SNP.L | 45.21 | N/A | Stocks | LSE |
| SLN.L | SLN.L | 535.00 | N/A | Stocks | LSE |
| SNN.L | SNN.L | 921.00 | N/A | Stocks | LSE |