At No. 7, the optimized PowerShares DB Silver ETF (DBS | B-43) is up 12.60 percent year-to-date.
DBS stands out relatively to other silver ETFs for two reasons. First, the fund invests in futures, rather than actual silver, and optimizes its silver futures contract selection based on the shape of the futures curve to minimize contango.
Secondly, DBS is among the most expensive silver ETFs in the market today, costing 0.74 percent in expense ratio, and trading, on average, with a spread of 10 basis points.
DBS has $36.5 million in assets.