As Wall Street returns from the weekend, the market seems to remain fairly positive ahead of a very busy week and mounting tensions between U.S. and Iran.

Investors should make sure to keep a close eye on the U.S. President Trump's meeting with Chinese President Xi Jinping on Friday, which will be the first meeting since trade talks broke down in early May 2019 and after the U.S. increased tariffs on China-made imports.

Action Alerts PLUS senior analyst Jeff Marks shares his thoughts on what investors should keep in mind this week.

"The best thing is just to hold some cash and be ready to buy on a pullback," Marks said.

Watch the video for more advice during TheStreet's Cramer Live Show. Marks is filling in for Jim Cramer, our founder and Action Alerts Plus Portfolio Manager. He has the day off. 

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