LSE:HLMA 20 November 2025 - 10 March 2026

Halma plc slipped 1.6% to close at 3,800 pence on Monday. Attention is turning to Thursday’s trading statement, where investors hope to see whether the British technology group can sustain its growth, a trend helped by data-centre investment.

Halma shares were up 0.9% at 4,100 pence as of 0836 GMT, having earlier set a new 52-week peak at 4,102 pence in London. The group carries a valuation near 15.5 billion pounds and trades at a P/E of about 52, a standard measure for valuation.

Halma plc closed out Friday at 3,548 pence, gaining 0.74% for the session. That puts the FTSE 100 life-safety tech firm’s market cap near £13.4 billion. With shares changing hands at about 35 times expected earnings, the lofty P/E leaves the stock exposed to outsized swings if investors shift their rate outlook.

Halma plc is finishing 3 December 2025 trading near record territory, powered by booming demand from AI data centres, record half‑year results and a cluster of fresh analyst target upgrades. The stock now trades as a classic “quality at a price” growth compounder: operationally strong, but with expectations baked in.