Cramer Remix: Avoid stocks getting crushed by this

Cramer Remix: Avoid stocks getting crushed by this · CNBC

Cramerica can credit Thursday's rally to the president of the European Central Bank , Mario Draghi . However, as the averages roared on, Jim Cramer became increasingly concerned that throwing in billions of euros to stimulate Europe 's economy could cause problems for investors' portfolios.

It's the weakening euro that worries Cramer, and he thinks that the ECB-style quantitative easing could kill a lot of companies in the U.S.

Cramer saw that because of the lockstep nature of how stocks trade, a lot of stocks that should not have rallied on Thursday. As he listened to conference calls for companies reporting earnings this week, all he is hearing about is the moaning and groaning of CEOs complaining about getting crushed because it has become so hard to do business overseas.

"You don't need a weatherman to know the wind is blowing against these U.S. companies with lots of overseas exposure, especially in Europe," Cramer added.

Read More Cramer: Collateral damage of the euro in the US

These days, the stock market will not pay attention to stocks that even smell anything like oil. United Rentals (URI) delivered a 12 cent earnings beat from a $2.07 basis and higher expected revenues. However, that progress didn't matter, as the stock was slammed on Thursday.

United Rentals is the largest equipment rental company in the world that makes money by renting out equipment to construction companies, utilities, manufacturers, homebuilders and government entities. Unfortunately, this also includes renting equipment to oil companies.

Could this be a good entry point for the stock?

To find out how the turmoil in the oil patch has impacted United Rentals, Cramer sat down with CEO Michael Kneeland.

"We do believe that the low price of oil is going in to the consumer, and our economy is 70 percent consumer driven. It's a positive effect with housing, and that is going to trickle down to multiple industries including chemicals, which really benefit hugely on the fact that oil prices are low," Kneeland said.

Now Cramer is circling back to a company for a product that you probably used on your way to work this morning and isn't impacted by the low price of oil. Harman International Industries (HAR) develops, manufactures and markets high-end speakers for car stereos and infotainment systems that integrate navigation, media, safety solutions and smartphone connectivity.

It recently made acquisitions that could change the way you drive to work forever. The reason why the "Mad Money" host thinks this one is worth taking a second look at is that Harman announced two acquisitions: one with Red Bend Software and the other with Symphony Teleca.