The Big 8 increased silver short positions to 46,117 COMEX contracts from 43,407 as prices fell to $50 from $72, according to the latest COT data. Peter Spina s

The Big 8 increased silver short positions to 46,117 COMEX contracts from 43,407 as prices fell to $50 from $72, according to the latest COT data. Peter Spina still calls silver a buy, citing all-in sustaining costs rising toward $35 an ounce.