| | Agronomics Ltd | Asset Management | Financial Services | 5.26 | 7.97 | -2.78 | -17.24 | -6.67 | -26.96 | -58.00 | -66.93 |
| | AIB Group Plc | Banks - Regional | Financial Services | -5.30 | -4.08 | 4.71 | 29.06 | 25.74 | 26.46 | 165.84 | 104.81 |
| | AIQ Ltd | Software - Application | Technology | 66.00 | 0.00 | -17.00 | 101.46 | -18.63 | -23.85 | -53.89 | -72.33 |
| | Airea Plc | Textile Manufacturing | Consumer Cyclical | -2.48 | -3.12 | -1.44 | 8.80 | 37.07 | -10.45 | 12.30 | -7.37 |
| | Airtel Africa Plc | Telecom Services | Communication Services | 1.20 | 1.86 | 6.91 | -12.44 | 1.36 | -0.44 | -20.42 | 50.46 |
| | AJ Bell Plc | Asset Management | Financial Services | 0.65 | 3.49 | 2.87 | -4.39 | 24.28 | -1.84 | 26.27 | -25.87 |
| | Ajax Resources Plc | Shell Companies | Financial Services | 0.00 | 0.00 | -15.00 | -42.05 | -48.48 | -68.13 | -49.00 | -46.29 |
| | Alba Mineral Resources Plc | Other Industrial Metals & Mining | Basic Materials | 7.69 | 5.26 | -28.93 | -26.32 | -16.67 | -34.88 | -67.06 | -75.00 |
| | Albion Development VCT Plc | Asset Management | Financial Services | 0.00 | 0.00 | 0.00 | -0.58 | 3.01 | -1.09 | -1.09 | 14.66 |
| | Albion Enterprise VCT Plc | Asset Management | Financial Services | 0.00 | 0.00 | -3.60 | -0.78 | -4.17 | -2.83 | -2.17 | 13.90 |
| | Albion Technology & General VCT Plc | Asset Management | Financial Services | 0.00 | 0.00 | 0.00 | -0.74 | -2.37 | -2.03 | -5.92 | 7.62 |
| | Albion Venture Capital Trust Plc | Asset Management | Financial Services | 0.00 | 0.00 | -1.17 | -3.06 | -3.06 | -6.91 | -8.86 | -35.25 |
| | Alfa Financial Software Holdings Plc | Software - Application | Technology | 3.06 | 8.67 | 4.09 | -0.34 | 16.54 | 39.41 | 9.06 | 33.74 |
| | Alien Metals Ltd | Other Precious Metals & Mining | Basic Materials | -2.52 | -19.00 | 22.86 | -16.62 | -6.33 | -58.46 | -77.86 | -83.80 |
| | Alina Holdings Plc | REIT - Retail | Real Estate | 0.00 | 0.00 | 0.00 | 2.82 | -4.26 | -36.66 | -57.06 | -67.56 |
| | Alkemy Capital Investments Plc | Shell Companies | Financial Services | 6.57 | 5.36 | 6.87 | 3.61 | -23.57 | -61.94 | -44.83 | -53.38 |
| | Allergy Therapeutics Plc | Drug Manufacturers - Specialty & Generic | Healthcare | -1.65 | 5.77 | 0.47 | 40.15 | 112.35 | 168.49 | -87.95 | -87.02 |
| | Alliance Pharma Plc | Drug Manufacturers - Specialty & Generic | Healthcare | 0.14 | -5.16 | -10.73 | -9.22 | -6.92 | -40.25 | -69.04 | -62.59 |
| | Alliance Trust Plc | Asset Management | Financial Services | 1.98 | 2.66 | 0.82 | 8.06 | 24.66 | 27.89 | 31.89 | 28.25 |
| | Allianz Technology Trust Plc | Asset Management | Financial Services | 3.73 | 5.78 | -1.70 | 8.26 | 41.26 | 57.24 | 41.84 | 14.50 |
| | Alpha Financial Markets Consulting Plc | Consulting Services | Industrials | 1.96 | 0.75 | 1.96 | -4.93 | -1.44 | -22.87 | -11.71 | 14.32 |
| | Alpha Group International Plc | Capital Markets | Financial Services | 0.49 | 2.49 | 13.30 | 40.10 | 30.40 | -3.38 | 8.21 | 8.21 |
| | Alpha Growth Plc | Asset Management | Financial Services | 8.33 | 9.70 | 6.78 | -14.19 | -18.24 | -48.10 | -36.98 | -79.37 |
| | Alpha Real Trust Ltd | Asset Management | Financial Services | 0.00 | -2.35 | 12.75 | 19.70 | 9.39 | 4.01 | -5.63 | -12.53 |
