Baystreet Staff - Monday, August 16, 2010 MAG Silver Corp. 03:47 PM EST - MAG Silver Corp. : announced that its second-quarter loss narrowed to $1.36 million or $0.03 per share from $4.38 million or $0.09 per share for the same period last year. MAG Silver Corp. shares T.MAG are trading up $0.07 at $6.94.