Sigma in the sun but clouds ahead for market ‘darling’ stock
 MELBOURNE: The last trading day of May is dubbed “MSCI Friday”. That is when the
            
            MELBOURNE: The last trading day of May is dubbed “MSCI Friday”. That is when the					
				    
         MELBOURNE: The last trading day of May is dubbed “MSCI Friday”. That is when the
            
            MELBOURNE: The last trading day of May is dubbed “MSCI Friday”. That is when the