Should investors be focused on ECB, oil markets, bitcoin or US tax reform?

Krisztian Bocsi | Bloomberg | Getty Images

The stars of the European Union (EU) sit on banners flying outside the European Central Bank (ECB) headquarters stands in Frankfurt, Germany, on Thursday, July 20, 2017.

With the summer drawing to a close, investors will be turning their attention to the European Central Bank as policymakers descend on Frankfurt on Sept. 7.

ECB President Mario Draghi will be in the spotlight as markets look for clues about the future of the central bank’s quantitative easing scheme, currently set to expire by the end of the year. That also takes place against the backdrop of the rise in the euro, which has strengthened some 13 percent against the dollar year to date.

Meanwhile, the surge in bitcoin prices has also captured investor attention. But with the cryptocurrency rising so much in 2017, some have called attention to a potential bubble.

Other developments on the radar include President Donald Trump’s administration’s attempt to push tax reforms through Congress.

And volatility has also been a feature in the oil markets after Hurricane Harvey caused up to a quarter of U.S. refining capacity to be shut due to flooding last week.