In the London equities markets, both the FTSE 100 and the FTSE 250 finished both the day and the week on a positive note. The FTSE 100 gained 0.4 percent on the day and 0.9 percent on the week to 5,407.9 at the close of trade on Friday. The FTSE 250 was up 0.4 percent for the day and 0.6 percent for the week to 7,901.6.

Volume was a very high 4.1 billion shares traded, explained by a double witching hour in which both stock options and index futures on the main index expired.

Miners were up on the day as gold reached a 17-year high. BHP Billiton and Anglo Pacific each gained 3.2 percent, to 873½p and 129½p respectively. Rio Tinto was up 3.8 percent on the day and 10 percent on the week to £21.49, while Anglo American advanced by 5.1 percent to £15.54.

Mergers and acquisitions rumors in the aerospace and defence sectors benefited defence group BAE Systems and jet engine maker Rolls-Royce. Rolls-Royce gained 3.4 percent to 370¾p and BAE was up 1.5 percent to 338p.

Among declining stocks, Shire Pharmaceuticals lost 1.5 percent to 685p after a downgrade to “neutral” by UBS.