PowerShares is set to launch eight new industry ETFs to increase their number of sector ETFs to fifteen. In addition to some conventional industry groups like utilities, retail, energy and defense; PowerShares is aiming at a few smaller slices of the pie by introducing insurance and nanotechnology coverage. No a bad strategy. All they need is one or two of these sectors to show some sustained strength and they’ll attract additional assets. More assets, more ETFs.

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