The FTSE 100 edged up 0.17% to 7,350.74 on Thursday morning, with heightened fears over Brexit weighing on investor confidence.
Bookmaker Ladbrokes Coral (LCL) soared 25.8% to 170.8p after it confirmed it is in talks regarding a takeover by online rival GVC, valuing it at up to £3.9bn. GVC's (GVC) shares gained 6% to 963.35p.
DS Smith (SMDS) added 2.6% to 553.3p on a 14% increase in revenue to £2.8bn in the six months to 31 October. But pre-tax profit fell by 5% at constant currency to £144 million because of costs relating to its August acquisition of Interstate Resources in the US.
Legal & General Group (LGEN) added 0.4% to 262.9p after saying it continues to see great momentum in all its businesses and is on track for a record year for earnings and profits.
Specialist social care services provider CareTech Holdings' (CTH) underlying pre-tax profits increased by 12.6% to £29.4m in the year to the end of September, boosting the share price by 1.6% to 432.9p.
Clipper Logistics (CLG) dipped 0.3% to 425.5p despite posting group pre-tax profits of £7.9m for the six months to the end of October - 15.6% up on a year ago.