Jon Najarian's Brexit trade could score big return

Top trader Najarian on how to play a potential Brexit
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Top trader Najarian on how to play a potential Brexit

Trader Jon Najarian, who's leading the way in the "Fast Money Halftime" portfolio competition with a gain of 14 percent this year, discusses how to profit from binary events like this week's Brexit decision using options spreads, no matter what the outcome.

On Thursday, the United Kingdom will hold a referendum on whether to remain in or exit the European Union, an event that traders predict could rattle equity and foreign exchange markets.

Watch the free video in this report to find out Najarian's explanation on why option spreads work. CNBC PRO subscribers can read on to get the specific trade Najarian is putting on ahead of the Brexit vote.