FTSE 100 Reaches New Highs Amidst AI Disruption Concerns for UK Tech Firms

London Market Navigates AI Headwinds

The FTSE 100, London's leading share index, experienced a notable rebound and reached fresh record highs in early February 2026. This upward movement in the broader market unfolded even as concerns over artificial intelligence (AI) disruption led to substantial losses for several prominent UK software and data companies. The index touched an intraday high of 10,373 on February 3rd and climbed to 10,446 on February 4th, further extending to 10,383 in early trading on February 5th. By midday on February 6th, it was up 17.63 points, or 0.2%, at 10,326.85.

Software and Data Firms Face Significant Declines

The market's overall strength contrasted sharply with the performance of London-listed software and data firms, which saw their valuations significantly impacted. Companies such as RELX, Sage Group, London Stock Exchange Group (LSEG), Pearson, and Experian were among those experiencing notable share price drops. For instance, RELX shares fell by 10% to 15%, Sage Group by as much as 10%, LSEG by 13%, Pearson by nearly 8%, and Experian by 7% during this period.

Anthropic's AI Tool Sparks Disruption Fears

A primary catalyst for the downturn in these specific sectors was the unveiling of a new legal AI tool by US artificial intelligence startup Anthropic. This development intensified investor concerns regarding AI's potential to automate complex tasks, thereby disrupting the traditional business models of established legal software and data providers. Analysts highlighted that the emergence of such tools could reduce the margins these data-driven companies achieve and, in a worst-case scenario, disintermediate them entirely.

Broader Market Strength Drives FTSE 100 Performance

Despite the significant pressure on technology-oriented stocks, the FTSE 100's resilience was attributed to strong performances in other sectors. The index benefited from its heavy weighting towards commodities, with surging precious metal prices and mining stocks providing a substantial boost. Additionally, strong corporate updates from companies like GSK and a positive outlook for banking shares contributed to the overall market's upward trajectory, offsetting the weakness seen in the software and data analytics segments.

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