- UK stocks eked out small gains at the open on Monday as Brexit negotiations stumbled at a key juncture over differences on the Irish border.

At 0857, the benchmark FTSE 100 index was up 5.63 points at 7.001.54.

Fashion retailer Superdry plunged 21% after it yet again downgraded its profit guidance, blaming unusually warm weather for killing demand for sweats and jackets.

It was a different story at footwear retailer Shoe Zone, which rallied 13% on news it would post annual profit ahead of market expectations and pay a special dividend.

Sandwich maker Greencore Group also announced it would pay a special dividend after it agreed to sell its entire US business to Hearthside Food Solutions for $1.08bn (£817m). Greencore shares fell 0.5%.

Recently-listed cake chain Cake Box jumped 7.0% after it forecast profits ahead of expectations, helping to put to rest concerns it would be caught up in the scandal and poor performance hurting rival Patisserie.

Patisserie, meanwhile, said it would raise £15m through a placing after a probe into its financial irregularities revealed the need for £20m cash injection to keep it afloat. Its shares are currently suspending from trading.

Medical products group ConvaTec tumbled 26% as it lowered its guidance for full-year earnings, due to a customer scaling back inventory requirements. The company also said chief executive Paul Moraviec would leave.

Caledonia Investments said it had acquired a majority stake in diesel-powered electricity generator manufacture Deep Sea Electronics for £162.0m. Its shares fell 0.4%.

Marketing services group System1 gained 1.2%, despite forecasting a 5% drop in first-half gross profit.

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