Market Summary – 23 October 2026

System1 Group PLC (SYS1.L)

  • Trading activity during the 24‑hour period ending 03:34 AM Central European Time was flat, with no change in price.
  • Current trading price is GB £350 on major exchanges.
  • Outstanding shares: 126.9 k.
  • Market capitalisation: GB £57.8 million.
  • Volume traded in the last 24 hours: GB £34.3 million.
  • Year‑to‑date performance: +4.48 % since the end of the previous month.
  • 200‑day simple moving average: GB £293.64.
  • 52‑week high: GB £370.28 (recorded 24 September 2026).
  • 52‑week low: GB £170.50 (recorded 26 February 2026).

TickerRecent ChangeCurrent PriceMarket CapitalisationNotes
MRK.L – Marks Electrical0 %GB £49GB £68.2 millionFlat movement
UPL.L – Upland+2.65 %GB £2.85GB £65.8 millionPositive movement
PROC.L – Procook+1.10 %GB £46GB £66.3 millionPE ratio 35.61
VLE.L – Volvere0 %GB £2,250GB £66.1 millionP/E ratio 17.28
CML.L – Cml Microsystems0 %GB £300GB £69.2 millionFlat movement

Company Overview – System1 Group PLC

System1 Group PLC is a marketing consultancy headquartered in London, United Kingdom. The firm delivers advertising research, opinion polling, and a range of marketing services to a global client base. The company is listed on the London Stock Exchange. Its initial public offering was completed on 5 December 2006. For additional information on products, services, and corporate updates, visit the official website at www.system1group.com .