The latest trade worries came after US President Donald Trump raised the global tariff he wants to impose to 15%.

For the week, the FTSE 100 was up 1.4%, the FTSE 250 was down 0.2%, and the AIM All-Share declined 1.5%.

The Bank of England left the bank rate unchanged at 3.75%.

The FTSE 100 index closed up 87.75 points, 0.9%, at 10,402.34, a new record close.

The sharp falls came after US artificial intelligence firm Anthropic released new ‘agentic AI’ tools for corporate legal teams.

Gold was quoted lower at 4,696.11 dollars an ounce on Monday, down sharply against 5,003.82 dollars at the same time on Friday.

The index closed with an increase of more than 51 points to 10,223.54.

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Miners Fresnillo, Antofagasta and Endeavour led blue-chip risers amid strength in metals prices.

In London, economic data was in focus after UK retail sales unexpectedly rose in December.

The FTSE 100 index closed up 11.31 points, 0.1%, at 10,138.09.

The threat of tariffs from US President Donald Trump continued to weigh heavy on European markets.

Beazley was the FTSE’s star blue-chip performer surging 43% after Zurich Insurance said it has tabled a £7.7-bn bid for the London-listed insurer.

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The FTSE 100 index closed up 16.10 points, 0.2%, at 10,140.70.

The FTSE 100 index closed up 79.91 points, 0.8%, at 10,124.60.

The FTSE 100 index closed down 3.52 points at 10,044.69.

The FTSE 100 index closed down 74.52 points, 0.7%, at 10,048.21.

Next, up 5%, impressed the City with strong Christmas sales.

Defence stocks and miners climbed as the FTSE 100 closed above 10,000 for the first time.