For investors looking to gain an edge in predicting the motions of today’s market, a look at yesterday’s best- and worst-performing ETFs might be worthwhile, as seen in an article on The Street.

In the winning category, the article highlighted:

• The Guggenheim Solar ETF (NYSEArca: TAN) +4.2 percent
• The Guggenheim China Small Cap ETF (NYSEArca: HAO) +3.4 percent
• Market Vectors Vietnam ETF (NYSEArca: VNM) +1.6 percent
• SPDR S&P Semiconductor ETF (NYSEArca: XSD) +1.0 percent

In the losing category, it pointed to:

• Market Vectors Junior Gold Miners ETF (NYSEArca: GDXJ) -1.9 percent
• SPDR S&P Biotech ETF (NYSEArca: XBI) -1.7 percent

For additional information, head over to TheStreet.com.