Holiday group TUI is leading the FTSE 100 risers in early trading, with its share price up 2.2% at 777.7p.
Following the publication of its full-year results on Tuesday, miner BHP saw its shares top the blue chip fallers, down 1% at £17.16.
The FTSE 100 is up 0.37% at 7,151.70.
The FTSE 250 is ahead 0.27% at 19,058.72.
BHP 'done a lot' over Brazil dam collapse
BBC Radio 4
Andrew Mackenzie, BHP Billiton's chief executive, was also asked about the impact of the collapse of Samarco mine in Minas Gerais state. Brazil, in 2015.
"We have done a lot, the river is much cleaner now and we are getting on with the final phase of the resettlement," he told BBC Radio 4's Today Programme.
The company took a $1.1bn (£900m) charge relating to the disaster in these results.
Demand has softened a little, says BHP boss
BBC Radio 4
The world's biggest mining company BHP has announced a rise in underlying profit to $9.1bn (£7.5bn) for the year to 30 June up from a previous $8.9bn.
Commenting on current conditions, BHP's chief executive Andrew Mackenzie (pictured), told the BBC Radio 4's Today Programme that the miner is exposed to global trade, particularly in China, where it sends iron ore and other commodities.
He says demand "has softened a bit but to
some extent the stimulus [China] put into their economy to counteract some of the potential and real impacts of the
trade dispute with the United States has actually created increased demand for our products".
Demand for copper is more affected and he says there is a broader nervousness.
"There is increasing nervousness when you run a large company
like ours which operates multi-nationally and is very much a participation in
global supply chains. We are, if you like, the product of free trade, of free
markets and competition and broad sharing of resources and ideas, and when you
see so much politics around the world which is perhaps challenging that.. that
to some extent is saying that form of capitalism is less acceptable and a new
one is sought.
"But the reality is we like the existing one, and we do worry about what will happen if things like globalism and purposeful capitalism
were in someway pushed back".
BHP escapes effects of US-China trade war
Global mining giant BHP says the trade spat between the world's two largest economies isn't yet hurting demand for its raw materials.
At 9.30am we'll discover the latest Office for National Statistics unemployment figures for January.
Before then in company announcements there'll be Walmart and Asda quarter four figures, and interims from BHP Billiton and the International Hotel Group, with HSBC already having issued disappointing annual results this morning.
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