FTSE 100 down 91 points to 10,282 UK retail sales bounced back last month GSK agrees £8bn takeover of US oncology specialist 4.18pm: Asia-focused lenders and miners lead London fall, techs hit in US The London benchmark is off its low from just before the hour, which had extended...

The FTSE 100 index closed up 62.12 points, or 0.6%, at 9,777.08.

(Reuters) -A momentous week in the technology sector made it clear there is no sign the boom in building artificial intelligence infrastructure is slowing — despite the bubble talk. Nvidia, whose processors are the AI revolution's backbone, became the first company to surpass $5 trillion in market value. Microsoft and OpenAI inked a deal enhancing the ChatGPT maker's fundraising ability and OpenAI promptly started laying groundwork for an initial public offering that could value the company at $1 trillion.

The FTSE 100 index closed up 98.92 points at 9,288.14.