Silver rallies as other commodities suffer

Silver prices rose on Tuesday to near a four-week high, capitalizing on other commodities' weakness, while markets focus on U.S. presidential elections. 

Silver last traded at $18.60 an ounce, up from the opening price of $18.22, with a session-high at $18.72, and a low at $18.15. 

Silver's rise comes as demand weakens on other commodities, pushing investors towards silver prices as they recover their opening losses and trade near a four-week high. 

Silver is also benefiting from market's focus on U.S. elections and their wait for the initial results, which made trading thin and facilitated a rally. 

On the other hand, dollar rose versus major rivals for the second straight session, but didn't didn't weigh on prices as usually as markets push them to last week's highs ahead of the U.S. elections results.