Silver prices were up Rs 180 at Rs 36,580 per kg at the futures trading today as speculators widened positions amid a firm trend overseas.

At the Multi Commodity Exchange, silver for delivery in far-month March rose Rs 180 or 0.49 per cent to Rs 36,580 per kg in a business turnover of four lots.

Similarly, the white metal for delivery in December was trading higher by Rs 170 or 0.48 per cent at Rs 35,833 per kg with a business volume of 599 lots.

Speculators widened positions, tracking a firming trend overseas as the dollar fell, raising the appeal of precious metals.

In Singapore, silver climbed 0.5 per cent to $14.87 an ounce today.