Since late last year share markets have rebounded with US shares up 25% to their recent high, global shares up 22% and Australian shares up 17% as last year’s worries about tightening monetary policy led by the Fed, global growth and trade wars have faded to varying degrees. Following such a strong rebound some have said that maybe it’s now time to “sell in May and go away” given the old share market saying. Of course, this is a reference to seasonal pattern in shares…