Most of the investors from different nations were worried due to the new global recession risks. As you know the overall economy of the whole world were slowed down in the last 8 years. Many people but especially the investors were hoping to witness a momentum from the data which will be revealed by G20. However the nations could not agree on a push for a new measures of stimulus. For instance central banks of Japan and many European Countries will include a bit more stimulus in the following month while England does not agree with it and stated that they will wait a bit more.