Arcontech Group PLC shares fell 8.6% to 74.96p after the financial sector software developer reported a drop in both revenue and profit for the first half of its financial year, citing the loss of a long-standing customer and lower one-off sales.
Revenue for the six months to end-December 2025 fell 4.7% to £1.44 million, with recurring revenue, which made up 99% of the total, down 3%.
Adjusted EBITDA dropped 24% to £341,239 and profit before tax declined 24% to £394,622.
Chairman Geoff Wicks said: “With our strong pipeline we are confident that we will build back lost business and return to growth next year”.
The company, which is behind software for real-time financial market data processing and trading, said one-off revenue had been unusually high last year and was not expected to repeat.
While lead times remain long, Arcontech reported progress with new and existing clients. It said one new contract had been secured, with another close to signing.
Net cash rose 8% to £7.8 million, which the board said gives it the flexibility to continue investing in product development and business expansion.
No interim dividend has been declared, in line with the company’s usual approach.