In other news
Massmart Holdings has fallen the most in a month after price competition at the Game department-store chain caused profitability to lag behind forecasts.
Europe's main stock markets have closed sharply higher, with London's benchmark FTSE 100 index ending the day up 1.21% at 7 033.33 points.
The world's richest nations are unlikely to reach a deal to phase out subsidies for coal exports, to reduce the chances of a new global climate change agreement.
A Brazilian judge has sentenced a former international director at state-run oil firm Petroleo Brasileiro SA to five years in prison for money laundering.
Three companies have decided to remove ads from US cable network TLC's reality show "19 Kids and Counting," in a sign of waning support for the top-rated programme.
European equity markets have risen before a G7 finance meeting that will focus on Greece's debt drama, while airlines group IAG neared its takeover of Aer Lingus.
World oil prices have risen on bargain-hunting after sharp falls the previous day triggered by a strong US dollar and global supply glut concerns, say analysts.
US stocks have opened higher, recovering some of the prior day's losses as good earnings from Tiffany offset a disappointing report from Michael Kors.