Spirent's customers operate in markets characterised by relentless traffic growth, ever-increasing security challenges and continual pressure to innovate while generating revenue and managing operating costs.

Our testing and measurement capabilities are needed now more than ever to assure our customers can deliver on the promises they make to their customers to keep them safe, secure and connected.

Key Financials

$ million 2018 2017
Revenue 476.9 454.8
Adjusted operating profit 77.1 58.9
Adjusted operating margin % 16.2 13.0
Adjusted basic earnings per share (cents) 10.86 7.55
Free cash flow  50.9 56.4
Dividend per share (cents) 4.49 4.08
Special dividend per share (cents) - 5.00


Spirent Communications plc Ordinary Shares are traded on the London Stock Exchange (ticker:SPT; LEI:213800HKCUNWP1916L38).The Company operates a Level 1 American Depositary Receipt (ADR) programme with each ADR representing four Spirent Communications plc Ordinary Shares. The ADRs trade in the US over-the-counter (OTC) market under the symbol SPMYY and the CUSIP number is 84856M209. Spirent ADRs are quoted on the Pink OTC Markets electronic quotation service which can be found at https://www.otcmarkets.com/corporate-services/information-for-pink-companies

Spirent Communications is a member of techMARK, the London Stock Exchange’s index for technology companies.