The FTSE 100 is up 23.7 points, or 0.38%, to 6,268.9 in early trading, as take-over news continues to push stocks higher.
Alliance Boots is leading the gains with a rise of 6.72% to 992.5p, following the deputy chairman's £10 per share offer on Friday, while orthopaedics group Smith & Nephew is up 4.1% to 640.75p, after the acquisition of its Swiss rival Plus for just shy of $900m.
ICI is also up 4.9% to 487p, as it is again being talked of as a possible target, while Rexam has added 2.5% to 533p, and miner Anglo American has advanced 2.47% to £25.28.
However Sainsbury is limiting losses with a drop of 2.02% to 533p, closely followed by Tate & Lyle which is down 1.06% to 560p, while Marks & Spencer is down 0.87% to 685.5p, British Airways has dropped 0.85% to 524p, and Bradford and Bingley has fallen 0.83% to 449p.
In Japan the Nikkei 225 Stock Average climbed 128.35, or 0.8%, to 17,292.39 at the 3pm close, as exporters paced gains after the yen continued to weaken against the dollar.
Sony added 80 yen, or 1.3%, to 6,240, while Sharp, the nation's largest maker of liquid-crystal display televisions, jumped 55 yen, or 2.5%, to 2,240, and Matsushita Electric Industrial, the world's largest maker of consumer electronics, rose 45 yen, or 1.9%, to 2,410.
Mitsui Fudosan, Japan's largest property developer, rose 50 yen, or 1.5%, to 3,470, while KDDI, the nation's second- largest mobile-phone operator, gained 14,000 yen, or 1.6%, to 920,000.
Japan Tobacco, the world's third-biggest maker of cigarettes, surged 25,000 yen, or 4.8%, to 546,000, as Gallaher Group shareholders approved Japan Tobacco's £7.5bn bid, while Takeda Pharmaceutical declined 60 yen, or 0.8%, to 7,870.
In the US on Friday the Dow Jones Industrial Average rose 15.62 points, or 0.13%, to 12,276.32, as a government job report for January showed signs of continued strength in the job market.
Alcoa made the biggest gains with a rise of 2.19% to $33.20, closely followed by McDonald’s which climbed 1.17% to $44.15, while Altria Group added 1.05% to $86.86, and Boeing rose 0.7% to $89.51.
Coca-Cola also advanced 0.89% to $47.57, although gains were limited by American International Group which slipped 0.42% to $69.07, while technology stocks suffered as Intel dropped 0.68% to $19.10.
However oil giant Exxon Mobil was the biggest loser with a drop of 1.02% to $71.12, closely followed by Wal-Mart which dropped 0.96% to $47.42, while Disney declined 0.92% to $34.37.
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Spent 56 years at Schroders
Warns on profits
Hargreave Hale seeking legal advice