| S & U PLC | 1,990.00p | -40.00 | -1.970 |
| S4 Capital PLC | 56.40p | 1.90 | 3.486 |
| Sabien Technology Group PLC | 12.58p | 0.08 | 0.640 |
| Sabre Insurance Group PLC | 155.40p | 0.20 | 0.129 |
| Safestay PLC | 20.80p | 1.30 | 6.667 |
| Safestore Holdings PLC | 809.00p | 3.00 | 0.372 |
| Saga PLC | 117.60p | 5.20 | 4.626 |
| Sage Group PLC | 1,195.50p | -2.50 | -0.209 |
| Sainsbury (J) PLC | 279.00p | 3.00 | 1.087 |
| Sancus Lending Group Limited | 0.50p | -0.04 | -7.407 |
| Sanderson Design Group PLC | 108.50p | 4.50 | 4.327 |
| Sareum Holdings PLC | 36.50p | 7.50 | 25.862 |
| Savannah Resources PLC | 3.35p | 0.00 | 0.000 |
| Savills PLC | 1,174.00p | -4.00 | -0.340 |
| Scancell Holdings PLC | 10.25p | 0.38 | 3.798 |
| Scholium Group PLC | 36.00p | -1.00 | -2.703 |
| Schroders PLC | 372.40p | -0.60 | -0.161 |
| Science Group PLC | 439.70p | 1.70 | 0.388 |
| Science In Sport PLC | 16.80p | 1.05 | 6.667 |
| Scirocco Energy PLC | 0.29p | 0.04 | 14.400 |
| Sdi Group PLC | 52.00p | 0.00 | 0.000 |
| Sdx Energy PLC | 3.70p | -0.15 | -3.896 |
| Sealand Capital Galaxy Limited | 0.08p | 0.00 | 0.000 |
| Secure Trust Bank PLC | 700.00p | 14.00 | 2.041 |
| Seed Capital Solutions PLC | 0.88p | 0.00 | 0.000 |
| Seeen PLC | 3.25p | 0.00 | 0.000 |
| Seeing Machines Limited | 4.95p | -0.18 | -3.509 |
| Segro PLC | 879.00p | -1.20 | -0.136 |
| Senior PLC | 169.40p | -1.60 | -0.936 |
| Seplat Energy PLC | 160.00p | 0.00 | 0.000 |
| Serabi Gold PLC | 65.00p | -1.00 | -1.515 |
| Serco Group PLC | 184.50p | -0.20 | -0.106 |
| Serica Energy PLC | 180.30p | -2.20 | -1.206 |
| Serinus Energy PLC | 3.00p | 0.10 | 3.448 |
| Severfield PLC | 72.00p | 2.00 | 2.857 |
| Severn Trent PLC | 2,583.00p | -4.00 | -0.155 |
| Shaftesbury Capital PLC | 139.10p | -1.30 | -0.926 |
| Shearwater Group PLC | 45.25p | 1.25 | 2.841 |
| Shell PLC | 2,940.00p | -6.00 | -0.204 |
| Shield Therapeutics PLC | 1.90p | 0.38 | 24.590 |
| Shoe Zone PLC | 195.00p | 5.00 | 2.632 |
| Shuka Minerals PLC | 10.35p | 0.85 | 8.947 |
| Sig PLC | 27.25p | -0.35 | -1.268 |
| Sigmaroc PLC | 65.10p | -2.30 | -3.413 |
| Silver Bullet Data Services Group PLC | 86.20p | -3.80 | -4.222 |
| Simec Atlantis Energy Limited | 0.90p | 0.08 | 9.091 |
| Sirius Real Estate LD | 97.25p | -0.90 | -0.917 |
| Skillcast Group PLC | 34.16p | 0.16 | 0.471 |
| Skinbiotherapeutics PLC | 8.65p | -0.10 | -1.154 |
| Slingsby (H.C.) PLC | 250.00p | 0.00 | 0.000 |
| Smart (J.) & Co. (Contractors) PLC | 129.95p | 4.95 | 3.960 |
| Smarttech247 Group PLC | 19.15p | -2.35 | -10.930 |
| Smith (Ds) PLC | 366.80p | 3.80 | 1.047 |
| Smiths Group PLC | 1,729.87p | 2.87 | 0.166 |
| Smiths News PLC | 62.20p | 0.20 | 0.323 |
| Smurfit Kappa Group PLC | 3,736.00p | -22.00 | -0.585 |
| Softcat PLC | 1,589.00p | -16.00 | -0.997 |
| Software Circle PLC | 18.00p | 0.00 | 0.000 |
| Solgold PLC | 8.93p | -0.01 | -0.112 |
| Solid State PLC | 1,490.00p | 20.00 | 1.361 |
| Somero Enterprise Inc. | 325.00p | 0.00 | 0.000 |
| Sondrel (Holdings) PLC | 4.50p | -0.10 | -2.174 |
| Sorted Group Holdings PLC | 87.00p | 3.50 | 4.192 |
| Sosandar PLC | 12.00p | 0.00 | 0.000 |
| Sound Energy PLC | 0.83p | 0.04 | 5.303 |
| South32 Limited | 191.00p | -0.60 | -0.313 |
| Southern Energy Corp. | 11.00p | 0.75 | 7.317 |
| Sovereign Metals Limited | 28.00p | -0.50 | -1.754 |
| Spaceandpeople PLC | 81.00p | -1.50 | -1.818 |
| Spectra Systems Corporation | 228.90p | -2.10 | -0.909 |
| Spectra Systems Corporation | 260.00p | -15.00 | -5.455 |
| Spectris PLC | 3,328.00p | -2.00 | -0.060 |
| Speedy Hire PLC | 26.84p | -2.26 | -7.777 |
| Spirax-Sarco Engineering PLC | 9,282.87p | -67.13 | -0.718 |
| Spire Healthcare Group PLC | 253.50p | 0.00 | 0.000 |
| Spirent Communications PLC | 190.00p | -1.00 | -0.524 |
| Springfield Properties PLC | 96.15p | 0.65 | 0.681 |
| Srt Marine Systems PLC | 23.00p | 0.00 | 0.000 |
| Sse PLC | 1,802.00p | -10.00 | -0.552 |
| Ssp Group PLC | 201.60p | -2.00 | -0.982 |
| St. James's Place PLC | 483.60p | -1.20 | -0.248 |
| Staffline Group PLC | 31.86p | -0.34 | -1.056 |
| Standard Chartered PLC | 776.60p | 1.60 | 0.207 |
| Star Energy Group PLC | 9.00p | -0.32 | -3.434 |
| Stelrad Group PLC | 126.50p | -1.50 | -1.172 |
| Steppe Cement LTD | 18.50p | 0.00 | 0.000 |
| Sthree PLC | 433.50p | 6.00 | 1.404 |
| Stm Group PLC | 57.50p | 0.00 | 0.000 |
| Strategic Minerals PLC | 0.25p | 0.03 | 11.111 |
| Streaksai PLC | 0.50p | -0.05 | -9.091 |
| Strip Tinning Holdings PLC | 45.09p | -0.91 | -1.978 |
| Strix Group PLC | 81.00p | 1.30 | 1.631 |
| Stv Group PLC | 257.00p | 1.50 | 0.587 |
| Sunrise Resources PLC | 0.05p | 0.00 | 1.053 |
| Superdry PLC | 7.20p | -0.20 | -2.703 |
| Supply@Me Capital PLC | 0.03p | 0.00 | 12.000 |
| Supreme PLC | 134.50p | -1.00 | -0.738 |
| Surface Transforms PLC | 1.18p | -0.02 | -2.000 |
| Surgical Innovations Group PLC | 0.49p | -0.01 | -2.600 |
| Sutton Harbour Group PLC | 11.66p | 0.66 | 5.955 |
| Sylvania Platinum Limited | 71.50p | -1.00 | -1.379 |
| Symphony Environmental Technologies PLC | 2.90p | 0.00 | 0.000 |
| Synairgen PLC | 6.15p | -0.47 | -7.100 |
| Synectics PLC | 182.00p | 7.00 | 4.000 |
| Synergia Energy LTD | 0.11p | 0.01 | 4.762 |
| Synthomer PLC | 288.50p | 7.50 | 2.669 |
| Sysgroup PLC | 28.50p | -3.50 | -10.938 |
| System1 Group PLC | 480.00p | -5.00 | -1.031 |
