In particular, Trump’s tariff-for-tariff poker game with China has roiled the markets whenever talk of tariffs or the implementation of tariffs reach the financial community.

“There’s definitely a lot of angst in the market around trade and tariffs—companies needing to alter their sourcing alter their supply lines, alter who and how they sell products across countries—the uncertainty of that is definitely weighing on the markets,” said Brian Rehling, co-head of global fixed income strategy at the Wells Fargo Investment Institute. “That probably continues to be one of the bigger factors driving markets lower the last couple of months.”

Some analysts are already voicing concerns over an inverted yield curve as signs of forthcoming trouble–it will be up to the “markets guy” to take a look and suggest a fix–starting next week.

For more market trends, visit ETF Trends.