Keep an eye on European stocks, which may outperform U.S. stocks in 2018, according to TheStreet's founder and Action Alerts PLUS Portfolio Manager Jim Cramer.

Cramer's charitable trust, Action Alerts PLUS, owns the ishaws MSCI Eurozone ETF (EZU) .

More from Video

It's Still Netflix and Chill on Wall Street

It's Still Netflix and Chill on Wall Street

Video: Here's How Goldman Sachs May Change Under David Solomon

Video: Here's How Goldman Sachs May Change Under David Solomon

3 Reasons Why Netflix Bulls Are Getting Their Face Ripped Off After Earnings

3 Reasons Why Netflix Bulls Are Getting Their Face Ripped Off After Earnings

Shark Tank Star Kevin O'Leary Reveals Why Stocks Haven't Corrected Recently

Shark Tank Star Kevin O'Leary Reveals Why Stocks Haven't Corrected Recently

Podcast: How Exchange Traded Funds Can Obliterate a Stock Sector

Podcast: How Exchange Traded Funds Can Obliterate a Stock Sector