US President Donald Trump once again proved that he has an extremely significant influence on the whole world. For example, his posts on Twitter may cause a drop in oil prices and currencies’ exchange rates.

This time, the news that Donald Trump and his wife caught the coronavirus infection immediately affected the New York Stock Exchange.  Positive results of the COVID-19 test just a month before the elections came as a real blow to the key stock indices, especially to the Dow Jones index. Thus, the Dow Jones Industrial Average slumped by 1.6% to 27,257 points. Other stock indices also suffered in sympathy with the Dow Jones. The S&P 500 dropped to 3,317.75 losing 1.15% whereas the Nasdaq Composite index declined by 1.52% to 11,339.25 points. In fact, the market response was quite predictable. However, the reaction of the US dollar surprised market participants. As a rule, the greenback advances during the stock market collapse. However, in this case, the US currency continued to lose in value thus making investors sell it off.

Donald Trump’s doctors said that the US President was doing "very well" in hospital after his Covid-19 diagnosis. Dr. Sean Conley also added that he expected Trump “to continue carrying out his duties without disruption while recovering.” However, the coronavirus may lead to the cancellation of the debate with Joe Biden, the Democratic presidential candidate. Although, this will play into Trump’s hands.