The markets seem to have gotten a bit more prone to wild swings on little tidbits of news.  I'm unsure if it has to do with that people are more risk averse, or that computers are doing so much of the high volume trades these days, that their algorithms get screwed up when stuff happens.  A good example is the big drop the markets all took the day that Trump fired Comey.  They came back the next day, but that news seemed to cause a decent sized drop.  An impeachment would be far worse.