Ray Wang: Memory is 'so hot' at the moment

Constellation Research founder R 'Ray' Wang joins 'Varney & Co.' to discuss the upcoming Micron earnings report, highlighting the high demand for memory and highlights key players in memory stocks.

What to look for before buying your first ETF

ETFs offer instant exposure to different sectors at prices often lower than individual stock holdings. There's one key question to answer before adding the first ETF to any portfolio.