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Trade it: Gundlach's global doomsday prediction

Jeffrey Gundlach
David A. Grogan | CNBC
Jeffrey Gundlach

DoubleLine Capital's Jeffrey Gundlach spooked investors at the Inside ETF Conference on Monday with a scary prediction that emerging market stocks may decline another 40 percent.

So what happens if Gundlach is right and these markets begin to tank? There are certain companies you don't want in your portfolio.

Using hedge fund analytics tool Kensho, we searched for all the times in the last 10 years when the iShares MSCI Emerging Markets ETF (EEM) declined 10 percent or more in 30 trading days. We then looked at the S&P 500 companies and ETFs that performed the worst during those sell-offs.

Here is a selection of the more interesting performers: