TD Ameritrade CEO Tim Hockey told FOX Business that growing trade confusion between China and the United States is driving Wall Street’s fear index to its highest level in six months.

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“The reason why we are seeing so much up and down activity, notably around the trade files, is because it can go from, ‘hey everything is all clear,’ to the next instant a tweet comes and maybe it’s not clear,” he said on Tuesday.

Stocks nosedived earlier in the trading day after President Trump warned China on Twitter that he is “Tariff Man,” suggesting the administration will slap tougher tariffs if talks with Beijing fail.

“President Xi and I want this deal to happen, and it probably will. But if not remember, I am a Tariff Man,” Trump tweeted.

The Dow Jones Industrial Average tanked 799 points to 25,027, or 3.1 percent, as the bond market signaled to investors an economic slowdown. The S&P 500 and Nasdaq Composite also ended lower by more than 3 percent.

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