The UBS Solactive US Listed Gold & Silver Miners UCITS ETF USD acc seeks to track the Solactive Gold & Silver Miners US Listings Carbon Tilted index. The Solactive Gold & Silver Miners US Listings Carbon Tilted index tracks US-listed companies that are engaged in the exploration, mining and/or refining of gold and silver. Companies with relatively low CO2 emissions are given a higher weighting in the index.