Though an abundance of news has whipsawed Wall Street during this timeline, including quarterly operating results, a U.S. debt downgrade, and geopolitical tensions in the Middle East, the one common link fueling this rollercoaster ride is President Donald Trump's tariff and trade policy.

Starting August 1, President Donald Trump’s new tariffs will go into effect for a number of countries. Ariana Triggs

The trade deal with European Union (EU) are yet to be finalised and the talks will continue in Scotland ahead of the August 1 deadline, Trump said

Trump’s protectionist moves likely to keep pushing countries to lessen their reliance on the US, analysts say.

U.S. President Donald Trump said on Sunday the United States and the European Union had reached agreement on a trade deal that includes a 15% tariff on EU goods entering the U.S. and significant EU purchases of U.