Deutsche Bank shares soared more than 11 percent on the Frankfurt stock exchange on Wednesday, driven by speculation it may be considering a bond buyback programme to help ease concern about its funds. 

Shares in Germany's biggest lender -- which had shed around 13 percent over the previous two sessions on Monday and Tuesday  -- topped an intraday high of 14.75 euros in late morning trade on Wednesday, a jump of 11.5 percent on the day. Media reports have suggested it is considering a bond buyback, but the bank was not immediately available to comment.