- The FTSE 100 gained 0.7% to 7,135.49 by midday after a strong close overnight in the US and better-than-expected UK growth figures.

The UK economy grew 2.3% in April, ahead of expectations of 2.2%, following 2.1% growth in March.

Pizza chain Domino's Pizza fell 1.14% to 385.75 pence after announcing that Neil Smith, chief financial officer, is set to leave the company to take up the finance director role at pubs and hotels business Fuller, Smith and Turner.

Videogames publisher Frontier Developments fell 8% to £24.20 despite saying its target in fiscal 2022 is to grow sales by 50% following record revenue growth in 2021.

Oil and gas company Gulf Keystone jumped 6% to 189.9 pence after forecasting 2021 gross production to be towards upper end of guidance after resuming drilling activities following restart of work at SH-13 ahead of schedule.

Cruise company Carnival Cruise Line slipped 2% even as it announced that first sailing for Mardi Gras and the return of additional ships would begin in August. Mind Gym fell 1.64% to 150 pence as it forecast a return to profit by 2023 after swinging to annual loss.

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