the U.S. dollar significantly dropped as late Wednesday Moody's and Chinese ratings agency Dagong both put the US AAA credit rating on negative watch.
On Friday the euro fluctuated against the dollar before as eight banks failed the European Union stress tests after regulators said they had a combined capital shortfall of 2.5 billion euros ($3.5 billion).
The European banks were found to have insufficient reserves to maintain a core tier 1 capital ratio of 5 percent in the event of an economic slowdown, the European Banking Authority said.
The assessments are the first by the European Banking Authority since it was set up earlier this year. Last year’s tests by its predecessor were criticized for not being tough enough because banks were shown to need only 3.5 billion euros more capital, a 10th of the lowest analyst estimate. Banks that fail the stress test must present a plan to raise more capital within three months.