After a relatively subdued November, December proved to be a more decisive month for the UK’s biggest listed firms, with the FTSE 100 rising from 9,720 to 9,931 by the end of 2025.
Various companies across the FTSE in the technology space saw both positive and negative movement as the year drew to a close.
Among the strongest performers was Ocado Group, which surged just over 28% in December, climbing from 184.35p to 236p.
The move came as investors warmed again to the group’s technology platform, with renewed optimism around automation, licensing revenues and cost discipline helping the company recover after a volatile year.
ASOS was another notable retail space gainer, rising nearly 17% from 242.5p to 283.5p.
Shares in the online fashion retailer rebounded as investors reacted positively to its annual financial report, with its losses narrowing following its ‘recovery period’.
Elsewhere, financial and trading platforms were up, with IG Group advancing almost 16% to 1,315p and Plus500 jumping more than 14% to 3,630p.
Bytes Technology added 3.6% to 358.6p, while Sage Group edged up just under 1% to 1,083p.
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On the other hand, Ceres Power was the standout faller, plunging more than 42% from 370.8p to 212.8p.
This, however, comes after a period of rapid market cap growth for the energy firm, which is still up by over 130% over the past six months.
Trustpilot also suffered a difficult month, falling more than 14% to 164.4p, amid ongoing concerns about advertising demand and profitability.
Baltic Classifieds Group fell almost 14% to 203p, despite the execution of a share buyback programme.
Oxford Nanopore Technologies declined nearly 9% to 128.4p, as it announced CEO Gordon Sanghera’s replacement in Francis Van Parys, while Auction Technology Group slipped just over 1% to 279p.
In eCommerce, Trainline fell more than 6% to 220.4p, while Moonpig Group edged lower by around 4% to 203p.
Meanwhile, Raspberry Pi shares dropped almost 8% to 300.2p -a trend which has continued into the new year – and TT Electronics slid more than 14% to 114.4p.