Halma share price soars over 12% after record half‑year results and AI data‑centre boom – 20 November 2025
Halma shares surged 12% to a record 3,716p in London on Thursday after the FTSE 100 group reported half-year revenue up 15.2% to £1.24bn and raised its full-year outlook. The rally pushed Halma’s market value near £14bn, making it the top riser in the index. Demand for its photonics technology in US data centres drove results. Trading volume reached about 375,000 shares.