- The FTSE 100 dropped sharply in mid-morning trading on Wednesday as concerns grew about mounting coronavirus cases in the US and reports the UK is set to abandon hopes of a Brexit trade deal with the EU.

At 1150, the UK's benchmark index fell 0.86%, or 53.77 points, to 6,215.96.

Home improvement retailer Kingfisher soared 11.8% to 251.6p on forecasting a half-year adjusted profit ahead of the prior year, as demand bounced back after lockdowns eased.

Kingfisher's like-for-like sales jumped 22% in the second quarter, though for the year to 18 July they fell 3.7%.

IT equipment retailer Computacenter leapt 11.9% to £19.41 having reported a 'substantial' rise in annual profit, as companies shifted to remote working in the pandemic.

Third-party logistics firm Wincanton leapt 7.7% to 185p after the company revealed that underlying pre-tax profits for the year to March 2021 would be 'significantly ahead of current market forecasts and not less than £30 million' assuming no further impact on business volumes from coronavirus.

Chile-focused copper play Antofagasta fell 1.25% to £10.24 as its production dropped in the second quarter. The miner said it expected to meet the lower end of its annual output guidance.

Mexican gold and silver miner Fresnillo gained 8.9% to £11.64 even as it cut its annual gold production guidance, though it did maintain guidance for full year silver production. The price of silver has surged in recent weeks as investors bet the industrial metal will be a winner in the 'green recovery' promised by politicians.

Bus and train operator Stagecoach advanced 5.65% to 53.3p despite swinging to a full-year loss and scrapping its final dividend, as planned, in what it described as a 'creditable' performance given the circumstances.

Stagecoach said it was continuing to mull funding options, amid a cloudy outlook for the public transport sector.

Engineering company Melrose Industries sank 20% to 96p on announcing that it wouldn't pay an interim dividend after its revenue slumped 27% in the first half.

The decision adds more dividend pain for Melrose investors, who already had to forgo last year's final dividend.

Private healthcare services group Mediclinic International firmed 9.7% to 278.8p, having experienced a continued improvement in its operating performance during June as lockdown measures were eased.

Drinks maker Britvic dipped 0.3% to 795p after its revenue tanked 16% in the third quarter, as lockdowns crimped demand from pubs and restaurants.

Fellow drinks group Nichols fell 0.84% to £11.75 as it posted a 78% drop in first-half profit, but more than doubled its interim dividend, citing a resilient cash performance.

Infection prevention product manufacturer Tristel dropped 11.4% to 412p, even after announcing that it expected to beat market expectations with a 21% jump in annual adjusted profit.

Tristel said the coronavirus pandemic had triggered a surge in demand for hospital disinfection products, though the demand outlook remained uncertain, including for medical device cleaning.

Developer and regeneration specialist St. Modwen Properties shed 6.7% to 330.7p having swung to a first-half loss and cut its dividend, owing partly to a negative revaluation of sites in Wales.

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