Asian shares surged and the euro recovered on Tuesday as investors covered short positions and hunted for bargains while awaiting U.S. Federal Reserve Chairman Ben Bernanke’s view on the U.S. economy expected later in the day. European stocks were likely to rise, tracking Asia and a 0.5 percent increase in U.S. stock futures that pointed to a stronger start in Wall Street. Financial spread betters called the main indexes in London, Paris and Frankfurt to open up as much as 0.6 percent.