Investors are looking ahead to U.S. Federal Reserve Chairman Ben Bernanke's Jackson Hole speech on Friday, in hopes that he may announce some form of monetary policy to help support the U.S. economy.

Brian Kelly, founder of Kanundrum Capital, doesn't think the Fed chief will say much, though. He'll probably lay out all of the things we could do if things turn bad, Kelly guessed.

"I still think things are very worrisome right now," Kelly continued. "When you have negative real interest rates, you have to be concerned."

So what's the trade ahead of Bernanke's speech?

Kelly recommends buying the iShares Barclays 20 Year Treasury exchange-traded fund into Friday morning.

In the options market, Mike Khouw said options traders aren't expecting Bernanke to say or do much either.

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