Volatility in the short term for sure, but honestly the whole fx "market" seems like a house of cards. 200:1 to 1000:1 leverage, poorly capitalized brokers. Seems more like digital bucket shops. That a publicly traded and transparent broker should get impacted like this really shocking considering how many less-than-reputable shops are out there that are much more opaque.
This is the kind of thing that can probably go on for a while, but when it all blows up there's going to be someone saying "Didn't you think it was odd that people had 1000:1 leverage? Don't you think those non capitalized positions distorted the market heavily?"