Paris - French shares shrugged off Wall Street's indecisiveness on Friday to end a volatile week on a positive note.

The Paris Bourse's CAC 40 blue-chip index finished Friday's session up 4.68 per cent, at 3,329.92, with advancing issues besting losers by 3 to 1.

Steel giant ArcelorMittal led the advance, gaining 10.57 per cent, to end the week at 22.22 euros. Energy supplier GDF Suez was also sought by investors, climbing by 
10.51 per cent, to 29.39 euros.

Another steel maker, Vallourec, was the day's biggest loser, off by 4.73 per cent, to 92.49 euros, while optical producer Essilor fell by 4.5 per cent, to 28.65 euros.

After losing more than 22 per cent of its value last week, the CAC 40 ended this week down only a little more than 3 per cent, following the announcements by European countries to implement ambitious, and potentially costly, plans to support their banking systems. (dpa)