TOM LEE: Here are the 20 stocks best positioned to endure a trade war

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A Boeing employee works in the fuselage section of the 747-8 Intercontinental airplane at the Boeing factory.

Wall Street and Main Street are worried about a trade war.

Stocks slumped on Thursday and Friday after President Donald Trump announced plans to impose a 25% tariff (import tax) on steel, and a 10% tariff on aluminum. Also, companies and trade groups that rely on these products, ranging from beer makers to car manufacturers, have said the tariffs would drive up their costs, which would ultimately be passed on to consumers.

But there'll also be winners. "Equity markets are overreacting-hence, we are aggressive buyers of this dip," said Tom Lee, the co-founder of Fundstrat, in a note on Friday.

Stocks that could benefit have little to do with international trade: they have low exports as a percentage of sales, and low international sourcing as a share of their cost of goods sold, Lee said.

The note included Fundstrat's list of 20 companies that rank best in its quant model. It also shows the average sum of each industry's overseas sourcing and exports as a share of sales.