This weekend by order of King Salman of Saudi Arabia, security forces arrested at least 17 high-ranking officials, including current and former ministers. Salman has decided to declare a war on corruption and to show that the country is becoming more open to investment.
Also on Sunday, the White House stated that President Donald Trump and Salman had a telephone conversation, during which they discussed measures to combat terrorism.
Given some of the risks in the region, the price of Brent crude reached a 2-year high.
This week investors' attention will be drawn to the implementation of the tax reform presented by Donald Trump. The markets continue to react positively to the possibility of new tax rules and support the reserve currency.