FTSE 100 Index, the British benchmark stock market gauge, Friday edged down 0.42 percent, or 28.60 points, to close at 6718.49 points.
British deficit on trade in goods and services was estimated to have been 1.6 billion pounds (or 2.5 billion U.S. dollars) in June 2015, compared with the previous month's 0.9 billion pounds, data showed by the Office for National Statistics (ONS) Friday.
ITV's share price decreased by 3.42 percent, topped the losers of the blue chips.
Prices of Hikma Pharmaceuticals, Schroders, AstraZeneca and Travis Perkins dropped by 3.39 percent, 2.24 percent, 2.08 percent and 1.98 percent respectively.
Anglo American led the top gainers of the blue chips with a share price increase of 3.24 percent, followed by Mondi (2.44 percent), Glencore (1.96 percent), Weir Group (1.66 percent) and Antofagasta (1.64 percent).
Trading volume in FTSE 100 companies was around 20 percent smaller than its 30-day average. And the index has gained 4.83 percent so far this year.