As the ETF industry has developed, some fund providers have launched niche strategies in the hopes of snagging investor assets. Unfortunately, some of these funds haven’t gotten much attention and their best days may be behind them, according to an article on Benzinga.

The following ETPs were outlined in the Benzinga article for their steep downturns and relatively poor performance since their inception:

• Guggenheim Solar ETF (NYSEArca: TAN)
• iPath S&P 500 VIX Short-Term Futures ETN (NYSEArca: VXX)
• iShares MSCI Hong Kong Small Cap Index Fund (NYSEArca: EWHS)
• iPath Global Carbon ETN (NYSEArca: GRN)

For additional details on the funds listed above, head over to Benzinga.com.