Furthermore, at least compared to the period of relative stability around mid-2014, these indicators seem prone to swings that are both more frequent and bigger in magnitude. In a word, volatility seems to be getting more volatile.
Some commentators argue that this volatility is driven by, among others, geopolitical events, uncertainties about the timing and pace of US rate rises, tensions arising from needing to find sustainable solutions for Greece, and doubts about how successful QE will be in the eurozone. These factors have a significant bearing on this rise in volatility.